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---title: Naval_Tech_Tree---::: mw-parser-output::: {.eu4box style="width:250px; height:auto; float:right; clear:right"}::: heading::: {style="font-size:larger; padding: 3px 0px; text-align:center;"}[Tech Tree](/wiki/Tech_Tree "Tech Tree")::::::​::: {style="font-weight: bold; text-align:center;"}Regular:::​------------------------------------------------------------------------​::: {style="columns:110px 2; column-gap: 5px;-webkit-columns:110px 2; -webkit-column-gap: 5px;-moz-columns:110px 2; -moz-column-gap: 5px;"}[Aircraft](/wiki/Aircraft_Tech_Tree "Aircraft Tech Tree")\[Armor andArtillery](/wiki/Armor_and_Artillery_Tech_Tree "Armor and Artillery Tech Tree")\[Industry](/wiki/Industry_Tech_Tree "Industry Tech Tree")\[Infantry](/wiki/Infantry_Tech_Tree "Infantry Tech Tree")\[Naval]{.mw-selflink .selflink}\[SecretWeapons](/wiki/Secret_Weapons_Tech_Tree "Secret Weapons Tech Tree"):::​::: {style="font-weight: bold; text-align:center;"}Doctrines:::​------------------------------------------------------------------------​::: {style="columns:80px 3; column-gap: 5px;-webkit-columns:80px 3; -webkit-column-gap: 5px;-moz-columns:80px 3; -moz-column-gap: 5px;"}[Land](/wiki/Land_Doctrine_Tech_Tree "Land Doctrine Tech Tree")\[Air](/wiki/Air_Doctrine_Tech_Tree "Air Doctrine Tech Tree")\[Naval](/wiki/Naval_Doctrine_Tech_Tree "Naval Doctrine Tech Tree")::::::​::: {#toc .toc aria-labelledby="mw-toc-heading" role="navigation"}::: {.toctitle dir="ltr" lang="en"}## Contents {#mw-toc-heading}​[ ]{.toctogglespan}:::​- [[ 1 ]{.tocnumber} [ Destroyer ]{.toctext}](#Destroyer) - [[ 1.1 ]{.tocnumber} [ Great War Destroyer ]{.toctext}](#Great_War_Destroyer) - [[ 1.2 ]{.tocnumber} [ Early Destroyer ]{.toctext}](#Early_Destroyer) - [[ 1.3 ]{.tocnumber} [ Basic Destroyer ]{.toctext}](#Basic_Destroyer) - [[ 1.4 ]{.tocnumber} [ Improved Destroyer ]{.toctext}](#Improved_Destroyer) - [[ 1.5 ]{.tocnumber} [ Advanced Destroyer ]{.toctext}](#Advanced_Destroyer) - [[ 1.6 ]{.tocnumber} [ Semi-Modern Destroyer ]{.toctext}](#Semi-Modern_Destroyer)- [[ 2 ]{.tocnumber} [ Light Cruiser ]{.toctext}](#Light_Cruiser) - [[ 2.1 ]{.tocnumber} [ Great War Light Cruiser ]{.toctext}](#Great_War_Light_Cruiser) - [[ 2.2 ]{.tocnumber} [ Early Light Cruiser ]{.toctext}](#Early_Light_Cruiser) - [[ 2.3 ]{.tocnumber} [ Basic Light Cruiser ]{.toctext}](#Basic_Light_Cruiser) - [[ 2.4 ]{.tocnumber} [ Improved Light Cruiser ]{.toctext}](#Improved_Light_Cruiser) - [[ 2.5 ]{.tocnumber} [ Advanced Light Cruiser ]{.toctext}](#Advanced_Light_Cruiser) - [[ 2.6 ]{.tocnumber} [ Semi-Modern Light Cruiser ]{.toctext}](#Semi-Modern_Light_Cruiser)- [[ 3 ]{.tocnumber} [ Heavy Cruiser ]{.toctext}](#Heavy_Cruiser) - [[ 3.1 ]{.tocnumber} [ Great War Heavy Cruiser ]{.toctext}](#Great_War_Heavy_Cruiser) - [[ 3.2 ]{.tocnumber} [ Early Heavy Cruiser ]{.toctext}](#Early_Heavy_Cruiser) - [[ 3.3 ]{.tocnumber} [ Basic Heavy Cruiser ]{.toctext}](#Basic_Heavy_Cruiser) - [[ 3.4 ]{.tocnumber} [ Improved Heavy Cruiser ]{.toctext}](#Improved_Heavy_Cruiser) - [[ 3.5 ]{.tocnumber} [ Advanced Heavy Cruiser ]{.toctext}](#Advanced_Heavy_Cruiser) - [[ 3.6 ]{.tocnumber} [ Semi-Modern Heavy Cruiser (CL) ]{.toctext}](#Semi-Modern_Heavy_Cruiser_.28CL.29)- [[ 4 ]{.tocnumber} [ Battlecruiser ]{.toctext}](#Battlecruiser) - [[ 4.1 ]{.tocnumber} [ Great War Battlecruiser ]{.toctext}](#Great_War_Battlecruiser) - [[ 4.2 ]{.tocnumber} [ Early Battlecruiser ]{.toctext}](#Early_Battlecruiser) - [[ 4.3 ]{.tocnumber} [ Basic Battlecruiser ]{.toctext}](#Basic_Battlecruiser) - [[ 4.4 ]{.tocnumber} [ Improved Battlecruiser ]{.toctext}](#Improved_Battlecruiser) - [[ 4.5 ]{.tocnumber} [ Advanced Battlecruiser ]{.toctext}](#Advanced_Battlecruiser) - [[ 4.6 ]{.tocnumber} [ Semi-Modern Battlecruiser ]{.toctext}](#Semi-Modern_Battlecruiser)- [[ 5 ]{.tocnumber} [ Battleship ]{.toctext}](#Battleship) - [[ 5.1 ]{.tocnumber} [ Great War Battleship ]{.toctext}](#Great_War_Battleship) - [[ 5.2 ]{.tocnumber} [ Early Battleship ]{.toctext}](#Early_Battleship) - [[ 5.3 ]{.tocnumber} [ Basic Battleship ]{.toctext}](#Basic_Battleship) - [[ 5.4 ]{.tocnumber} [ Improved Battleship ]{.toctext}](#Improved_Battleship) - [[ 5.5 ]{.tocnumber} [ Advanced Battleship ]{.toctext}](#Advanced_Battleship) - [[ 5.6 ]{.tocnumber} [ Semi-Modern Battleship ]{.toctext}](#Semi-Modern_Battleship) - [[ 5.7 ]{.tocnumber} [ Super Heavy Battleship ]{.toctext}](#Super_Heavy_Battleship)- [[ 6 ]{.tocnumber} [ Air Carrier ]{.toctext}](#Air_Carrier) - [[ 6.1 ]{.tocnumber} [ Great War Air Carrier ]{.toctext}](#Great_War_Air_Carrier) - [[ 6.2 ]{.tocnumber} [ Early Air Carrier ]{.toctext}](#Early_Air_Carrier) - [[ 6.3 ]{.tocnumber} [ Basic Air Carrier ]{.toctext}](#Basic_Air_Carrier) - [[ 6.4 ]{.tocnumber} [ Improved Air Carrier ]{.toctext}](#Improved_Air_Carrier) - [[ 6.5 ]{.tocnumber} [ Advanced Air Carrier ]{.toctext}](#Advanced_Air_Carrier) - [[ 6.6 ]{.tocnumber} [ Heavy Advanced Air Carrier ]{.toctext}](#Heavy_Advanced_Air_Carrier) - [[ 6.7 ]{.tocnumber} [ Super Heavy Advanced Air Carrier ]{.toctext}](#Super_Heavy_Advanced_Air_Carrier) - [[ 6.8 ]{.tocnumber} [ Semi-Modern Air Carrier ]{.toctext}](#Semi-Modern_Air_Carrier)- [[ 7 ]{.tocnumber} [ Submarine ]{.toctext}](#Submarine) - [[ 7.1 ]{.tocnumber} [ Dive Boat ]{.toctext}](#Dive_Boat) - [[ 7.2 ]{.tocnumber} [ Short Range Submarine ]{.toctext}](#Short_Range_Submarine) - [[ 7.3 ]{.tocnumber} [ Medium Range Submarine ]{.toctext}](#Medium_Range_Submarine) - [[ 7.4 ]{.tocnumber} [ Long Range Submarine ]{.toctext}](#Long_Range_Submarine) - [[ 7.5 ]{.tocnumber} [ Electro Submarine ]{.toctext}](#Electro_Submarine) - [[ 7.6 ]{.tocnumber} [ Semi-Modern Submarine ]{.toctext}](#Semi-Modern_Submarine):::​### [ Destroyer ]{#Destroyer .mw-headline}​#### [ Great War Destroyer ]{#Great_War_Destroyer .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type destroyer | decoding="async" height="24" || - New Model destroyer 0 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Destroyer Hull || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Destroyer Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Gun 100 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Great War ASW Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Great War Destroyer Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Early Destroyer ]{#Early_Destroyer .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Great War | mages/0/09/Naval_engineering.png" || Destr | decoding="async" height="24" || oyer](/wiki/Naval_Tech_Tree#Great | loading="lazy" || _War_Destroyer "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Early Destroyer Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model destroyer 1 | url="/i || - Convoy Escort Efficiency 0.05 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Early Destroyer Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Gun 100 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Early ASW Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Early Destroyer Prototype Testing || | (D) |+-----------------------------------+-----------------------------------+​#### [ Basic Destroyer ]{#Basic_Destroyer .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Early | mages/0/09/Naval_engineering.png" || D | decoding="async" height="24" || estroyer](/wiki/Naval_Tech_Tree#E | loading="lazy" || arly_Destroyer "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Basic Destroyer Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || destroyer 0 | mages/0/09/Naval_engineering.png" || - New Model destroyer 2 | decoding="async" height="24" || - Convoy Escort Efficiency 0.05 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Destroyer Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Gun 120 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic ASW Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Basic Destroyer Prototype Testing || | (D) |+-----------------------------------+-----------------------------------+​#### [ Improved Destroyer ]{#Improved_Destroyer .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Basic | mages/0/09/Naval_engineering.png" || D | decoding="async" height="24" || estroyer](/wiki/Naval_Tech_Tree#B | loading="lazy" || asic_Destroyer "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Destroyer Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || destroyer 1 | mages/0/09/Naval_engineering.png" || - New Model destroyer 3 | decoding="async" height="24" || - Convoy Escort Efficiency 0.05 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Destroyer Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Gun 120 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved ASW Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Improved Destroyer Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Advanced Destroyer ]{#Advanced_Destroyer .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1941 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved | mages/0/09/Naval_engineering.png" || Dest | decoding="async" height="24" || royer](/wiki/Naval_Tech_Tree#Impr | loading="lazy" || oved_Destroyer "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Destroyer Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model destroyer 4 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || destroyer 2 | decoding="async" height="24" || - Convoy Escort Efficiency 0.05 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Destroyer Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Gun 120 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced ASW Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Destroyer Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Semi-Modern Destroyer ]{#Semi-Modern_Destroyer .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Advanced | mages/0/09/Naval_engineering.png" || Dest | decoding="async" height="24" || royer](/wiki/Naval_Tech_Tree#Adva | loading="lazy" || nced_Destroyer "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Semi-Modern Destroyer Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model destroyer 5 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || destroyer 3 | decoding="async" height="24" || - Convoy Escort Efficiency 0.05 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Semi-Modern Destroyer Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Gun 120 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Semi-Modern ASW Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Destroyer Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​### [ Light Cruiser ]{#Light_Cruiser .mw-headline}​#### [ Great War Light Cruiser ]{#Great_War_Light_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type | decoding="async" height="24" || light_cruiser | loading="lazy" || - New Model light_cruiser 0 | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Light Cruiser Hull || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Light Cruiser || | Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 120 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Great War Anti-Air Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Great War Light Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Early Light Cruiser ]{#Early_Light_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Great War Light | mages/0/09/Naval_engineering.png" || Cruiser | decoding="async" height="24" || ](/wiki/Naval_Tech_Tree#Great_War | loading="lazy" || _Light_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Early Light Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model light_cruiser 1 | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Early Light Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 120 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Early Anti-Air Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Early Light Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Basic Light Cruiser ]{#Basic_Light_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Early Light | mages/0/09/Naval_engineering.png" || Cru | decoding="async" height="24" || iser](/wiki/Naval_Tech_Tree#Early | loading="lazy" || _Light_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Basic Light Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || light_cruiser 0 | mages/0/09/Naval_engineering.png" || - New Model light_cruiser 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Light Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 150 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Anti-Air Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Basic Light Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Improved Light Cruiser ]{#Improved_Light_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Basic Light | mages/0/09/Naval_engineering.png" || Cru | decoding="async" height="24" || iser](/wiki/Naval_Tech_Tree#Basic | loading="lazy" || _Light_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Light Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || light_cruiser 1 | mages/0/09/Naval_engineering.png" || - New Model light_cruiser 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Light Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 180 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Anti-Air Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Improved Light Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Advanced Light Cruiser ]{#Advanced_Light_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1941 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved Light | mages/0/09/Naval_engineering.png" || Cruise | decoding="async" height="24" || r](/wiki/Naval_Tech_Tree#Improved | loading="lazy" || _Light_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Light Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model light_cruiser 4 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || light_cruiser 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Light Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 180 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced Anti-Air Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Light Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Semi-Modern Light Cruiser ]{#Semi-Modern_Light_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Advanced Light | mages/0/09/Naval_engineering.png" || Cruise | decoding="async" height="24" || r](/wiki/Naval_Tech_Tree#Advanced | loading="lazy" || _Light_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Semi-Modern Light Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model light_cruiser 5 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || light_cruiser 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Semi-Modern Light Cruiser || | Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 180 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Semi-Modern Anti-Air Equipment || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Light Cruiser || | Prototype Testing (D) |+-----------------------------------+-----------------------------------+​### [ Heavy Cruiser ]{#Heavy_Cruiser .mw-headline}​#### [ Great War Heavy Cruiser ]{#Great_War_Heavy_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type | decoding="async" height="24" || heavy_cruiser | loading="lazy" || - New Model heavy_cruiser 0 | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Heavy Cruiser Hull || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Heavy Cruiser || | Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 180 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Surface Ship Torpedo || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Great War Heavy Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Early Heavy Cruiser ]{#Early_Heavy_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Great War Heavy | mages/0/09/Naval_engineering.png" || Cruiser | decoding="async" height="24" || ](/wiki/Naval_Tech_Tree#Great_War | loading="lazy" || _Heavy_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Early Heavy Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model heavy_cruiser 1 | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Early Heavy Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 180 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Surface Ship Torpedo || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Early Heavy Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Basic Heavy Cruiser ]{#Basic_Heavy_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Early Heavy | mages/0/09/Naval_engineering.png" || Cru | decoding="async" height="24" || iser](/wiki/Naval_Tech_Tree#Early | loading="lazy" || _Heavy_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Basic Heavy Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || heavy_cruiser 0 | mages/0/09/Naval_engineering.png" || - New Model heavy_cruiser 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Heavy Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 180 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced Surface Ship Torpedo || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Basic Heavy Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Improved Heavy Cruiser ]{#Improved_Heavy_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Basic Heavy | mages/0/09/Naval_engineering.png" || Cru | decoding="async" height="24" || iser](/wiki/Naval_Tech_Tree#Basic | loading="lazy" || _Heavy_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Heavy Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || heavy_cruiser 1 | mages/0/09/Naval_engineering.png" || - New Model heavy_cruiser 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Heavy Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 200 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Surface Ship Homing Torpedo || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Improved Heavy Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Advanced Heavy Cruiser ]{#Advanced_Heavy_Cruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1941 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved Heavy | mages/0/09/Naval_engineering.png" || Cruise | decoding="async" height="24" || r](/wiki/Naval_Tech_Tree#Improved | loading="lazy" || _Heavy_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Heavy Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model heavy_cruiser 4 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || heavy_cruiser 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Heavy Cruiser Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 200 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Surface Ship Homing || | Torpedo || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Heavy Cruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ ]{#Semi-Modern_Heavy_Cruiser_(CL)} [ Semi-Modern Heavy Cruiser (CL) ]{#Semi-Modern_Heavy_Cruiser_.28CL.29 .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Advanced Heavy | mages/0/09/Naval_engineering.png" || Cruise | decoding="async" height="24" || r](/wiki/Naval_Tech_Tree#Advanced | loading="lazy" || _Heavy_Cruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Semi-Modern Heavy Cruiser Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model heavy_cruiser 5 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || heavy_cruiser 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Semi-Modern Heavy Cruiser || | Propulsion || | || | 5 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 200 || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Cruiser Ship-to-Ship Missiles || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Heavy Cruiser || | Prototype Testing (D) |+-----------------------------------+-----------------------------------+​### [ Battlecruiser ]{#Battlecruiser .mw-headline}​#### [ Great War Battlecruiser ]{#Great_War_Battlecruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 6 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type | decoding="async" height="24" || battlecruiser | loading="lazy" || - New Model battlecruiser 0 | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Battlecruiser Hull || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Battlecruiser || | Propulsion || | || | 6 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 200 || | || | 6 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Optical Rangefinder || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Great War Battlecruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Early Battlecruiser ]{#Early_Battlecruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 6 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Great War | mages/0/09/Naval_engineering.png" || Battlecruiser | decoding="async" height="24" || ](/wiki/Naval_Tech_Tree#Great_War | loading="lazy" || _Battlecruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Early Battlecruiser Hull || ``` | || - Effects: | 6 - || | [{file-height="24" || ``` | file-width="24" || - New Model battlecruiser 1 | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Early Battlecruiser Propulsion || | || | 6 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Cruiser Gun 200 || | || | 6 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Optical Rangefinder || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Early Battlecruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Basic Battlecruiser ]{#Basic_Battlecruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 6 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Early | mages/0/09/Naval_engineering.png" || Battlecru | decoding="async" height="24" || iser](/wiki/Naval_Tech_Tree#Early | loading="lazy" || _Battlecruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Basic Battlecruiser Hull || ``` | || - Effects: | 6 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || battlecruiser 0 | mages/0/09/Naval_engineering.png" || - New Model battlecruiser 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Battlecruiser Propulsion || | || | 6 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battlecruiser Gun 250 || | || | 6 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced Optical Rangefinder || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Basic Battlecruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Improved Battlecruiser ]{#Improved_Battlecruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 6 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Basic | mages/0/09/Naval_engineering.png" || Battlecru | decoding="async" height="24" || iser](/wiki/Naval_Tech_Tree#Basic | loading="lazy" || _Battlecruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Battlecruiser Hull || ``` | || - Effects: | 6 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || battlecruiser 1 | mages/0/09/Naval_engineering.png" || - New Model battlecruiser 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Battlecruiser Propulsion || | || | 6 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battlecruiser Gun 250 || | || | 6 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Decimetric Naval Artillery || | Radar || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Improved Battlecruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Advanced Battlecruiser ]{#Advanced_Battlecruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1941 | 6 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved | mages/0/09/Naval_engineering.png" || Battlecruise | decoding="async" height="24" || r](/wiki/Naval_Tech_Tree#Improved | loading="lazy" || _Battlecruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Battlecruiser Hull || ``` | || - Effects: | 6 - || | [{file-height="24" || ``` | file-width="24" || - New Model battlecruiser 4 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || battlecruiser 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Battlecruiser Propulsion || | || | 6 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battlecruiser Gun 250 || | || | 6 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Decimetric Naval || | Artillery Radar || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Battlecruiser Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Semi-Modern Battlecruiser ]{#Semi-Modern_Battlecruiser .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 6 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Advanced | mages/0/09/Naval_engineering.png" || Battlecruise | decoding="async" height="24" || r](/wiki/Naval_Tech_Tree#Advanced | loading="lazy" || _Battlecruiser "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Semi-Modern Battlecruiser Hull || ``` | || - Effects: | 6 - || | [{file-height="24" || ``` | file-width="24" || - New Model battlecruiser 5 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || battlecruiser 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Semi-Modern Battlecruiser || | Propulsion || | || | 6 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battlecruiser Gun 250 || | || | 6 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Centimetric Naval Artillery || | Radar || | || | 6 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Battlecruiser || | Prototype Testing (D) |+-----------------------------------+-----------------------------------+​### [ Battleship ]{#Battleship .mw-headline}​#### [ Great War Battleship ]{#Great_War_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type battleship | decoding="async" height="24" || - New Model battleship 0 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Battleship Hull || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 350 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Optical Rangefinder || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Great War Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Early Battleship ]{#Early_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Great War | mages/0/09/Naval_engineering.png" || Battles | decoding="async" height="24" || hip](/wiki/Naval_Tech_Tree#Great_ | loading="lazy" || War_Battleship "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Early Battleship Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model battleship 1 | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Early Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 350 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Optical Rangefinder || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Early Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Basic Battleship ]{#Basic_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Early | mages/0/09/Naval_engineering.png" || Bat | decoding="async" height="24" || tleship](/wiki/Naval_Tech_Tree#Ea | loading="lazy" || rly_Battleship "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Basic Battleship Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || battleship 0 | mages/0/09/Naval_engineering.png" || - New Model battleship 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 350 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced Optical Rangefinder || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Basic Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Improved Battleship ]{#Improved_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Basic | mages/0/09/Naval_engineering.png" || Bat | decoding="async" height="24" || tleship](/wiki/Naval_Tech_Tree#Ba | loading="lazy" || sic_Battleship "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Battleship Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || battleship 1 | mages/0/09/Naval_engineering.png" || - New Model battleship 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 400 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Decimetric Naval Artillery || | Radar || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Improved Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Advanced Battleship ]{#Advanced_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1941 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved | mages/0/09/Naval_engineering.png" || Battle | decoding="async" height="24" || ship](/wiki/Naval_Tech_Tree#Impro | loading="lazy" || ved_Battleship "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Battleship Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model battleship 4 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || battleship 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 400 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Decimetric Naval || | Artillery Radar || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Semi-Modern Battleship ]{#Semi-Modern_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Advanced | mages/0/09/Naval_engineering.png" || Battle | decoding="async" height="24" || ship](/wiki/Naval_Tech_Tree#Advan | loading="lazy" || ced_Battleship "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Semi-Modern Battleship Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model battleship 5 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || battleship 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Semi-Modern Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 400 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Centimetric Naval Artillery || | Radar || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Super Heavy Battleship ]{#Super_Heavy_Battleship .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved | mages/0/09/Naval_engineering.png" || Battle | decoding="async" height="24" || ship](/wiki/Naval_Tech_Tree#Impro | loading="lazy" || ved_Battleship "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Super Heavy Battleship Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model battleship 6 | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Super Heavy Battleship Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | url=" || | /images/e/ea/Naval_artillery.png" || | decoding="async" height="24" || | loading="lazy" || | width= || | "24"}](/wiki/File:Naval_artillery || | .png "naval_artillery"){.image} - || | Naval Battleship Gun 460 || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Centimetric Naval Artillery || | Radar || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Super Heavy Battleship Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​### [ Air Carrier ]{#Air_Carrier .mw-headline}​#### [ Great War Air Carrier ]{#Great_War_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type carrier | decoding="async" height="24" || - Activate Unit Type cag | loading="lazy" || - New Model carrier 0 | width="24" || - New Model cag 0 | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Air Carrier Hull || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Great War Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Sectional Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Great War Carrier Aircraft Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Great War Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Early Air Carrier ]{#Early_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Great War Air | mages/0/09/Naval_engineering.png" || Carri | decoding="async" height="24" || er](/wiki/Naval_Tech_Tree#Great_W | loading="lazy" || ar_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Early Air Carrier Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model carrier 1 | url="/i || - New Model cag 1 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Early Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Experimental Straight Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Early Carrier Aircraft Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Early Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Basic Air Carrier ]{#Basic_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Early Air | mages/0/09/Naval_engineering.png" || C | decoding="async" height="24" || arrier](/wiki/Naval_Tech_Tree#Ear | loading="lazy" || ly_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Basic Air Carrier Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model carrier 2 | url="/i || - New Model cag 2 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Straight Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Basic Carrier Aircraft Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Basic Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Improved Air Carrier ]{#Improved_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Basic Air | mages/0/09/Naval_engineering.png" || C | decoding="async" height="24" || arrier](/wiki/Naval_Tech_Tree#Bas | loading="lazy" || ic_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Air Carrier Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model carrier 3 | url="/i || - New Model cag 3 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Armored Straight Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Improved Carrier Aircraft Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Improved Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Advanced Air Carrier ]{#Advanced_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1941 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Improved Air | mages/0/09/Naval_engineering.png" || Carr | decoding="async" height="24" || ier](/wiki/Naval_Tech_Tree#Improv | loading="lazy" || ed_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Air Carrier Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model carrier 4 | url="/i || - New Model cag 4 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Angled Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced Carrier Aircraft Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Heavy Advanced Air Carrier ]{#Heavy_Advanced_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1943 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Advanced Air | mages/0/09/Naval_engineering.png" || Carr | decoding="async" height="24" || ier](/wiki/Naval_Tech_Tree#Advanc | loading="lazy" || ed_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Air Carrier Heavy Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model carrier 5 | url="/i || - New Model cag 5 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Armored Angled Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Heavy Advanced Carrier Aircraft || | Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Super Heavy Advanced Air Carrier ]{#Super_Heavy_Advanced_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1944 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Heavy Advanced Air | mages/0/09/Naval_engineering.png" || Carrier](/ | decoding="async" height="24" || wiki/Naval_Tech_Tree#Heavy_Advanc | loading="lazy" || ed_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Air Carrier Super Heavy || ``` | Hull || - Effects: | || | 7 - || ```{=html} | [{file-height="24" || - New Model carrier 6 | file-width="24" || - New Model cag 6 | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Air Carrier Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Armored Angled Flight Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Super Heavy Advanced Carrier || | Aircraft Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Advanced Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Semi-Modern Air Carrier ]{#Semi-Modern_Air_Carrier .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 7 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Super Heavy Advanced Air | mages/0/09/Naval_engineering.png" || Carrier](/wiki/N | decoding="async" height="24" || aval_Tech_Tree#Super_Heavy_Advanc | loading="lazy" || ed_Air_Carrier "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Semi-Modern Air Carrier Hull || ``` | || - Effects: | 7 - || | [{file-height="24" || ``` | file-width="24" || - New Model carrier 7 | url="/i || - New Model cag 7 | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Semi-Modern Air Carrier || | Propulsion || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/a/a1/Aeronautics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Aeronau || | tics.png "aeronautics"){.image} - || | Floating Airbase Deck || | || | 7 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Semi-Modern Carrier Aircraft || | Group || | || | 7 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Air Carrier Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​### [ Submarine ]{#Submarine .mw-headline}​#### [ Dive Boat ]{#Dive_Boat .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: None | [{file-height="24" || ```{=html} | file-width="24" || <!-- --> | url="/i || ``` | mages/0/09/Naval_engineering.png" || - Activate Unit Type submarine | decoding="async" height="24" || - New Model submarine 0 | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Experimental Pressure Hull || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Bronze Periscope || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/2/20/General_equipment.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:General_equipment.p || | ng "general_equipment"){.image} - || | Basic Compass || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Diving Rudder || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Dive Boat Prototype Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Short Range Submarine ]{#Short_Range_Submarine .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Dive | mages/0/09/Naval_engineering.png" || Boat](/wiki/Naval_Tech_ | decoding="async" height="24" || Tree#Dive_Boat "Naval Tech Tree") | loading="lazy" || | width="24" || ```{=html} | }](/wiki/File:Naval_engineering.p || <!-- --> | ng "naval_engineering"){.image} - || ``` | Basic Pressure Hull || - Effects: | || | 5 - || ```{=html} | [{file-height="24" || - New Model submarine 1 | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Bronze Periscope || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/2/20/General_equipment.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:General_equipment.p || | ng "general_equipment"){.image} - || | Tower Compass || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Underwater Elevation Rudder || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Short Range Submarine Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Medium Range Submarine ]{#Medium_Range_Submarine .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1936 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Short Range | mages/0/09/Naval_engineering.png" || Submari | decoding="async" height="24" || ne](/wiki/Naval_Tech_Tree#Short_R | loading="lazy" || ange_Submarine "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Improved Pressure Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || submarine 0 | mages/0/09/Naval_engineering.png" || - New Model submarine 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Steel Periscope || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/2/20/General_equipment.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:General_equipment.p || | ng "general_equipment"){.image} - || | Nautical Gyrocompass || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Submarine Diesel Engine || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Medium Range Submarine Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Long Range Submarine ]{#Long_Range_Submarine .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1938 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Medium Range | mages/0/09/Naval_engineering.png" || Submarin | decoding="async" height="24" || e](/wiki/Naval_Tech_Tree#Medium_R | loading="lazy" || ange_Submarine "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Advanced Pressure Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - Model is now obsolete. | url="/i || submarine 1 | mages/0/09/Naval_engineering.png" || - New Model submarine 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Basic Schnorkel || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/2/20/General_equipment.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:General_equipment.p || | ng "general_equipment"){.image} - || | Large Fuel Tank Design || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Advanced Torpedo Chambers || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Long Range Submarine Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Electro Submarine ]{#Electro_Submarine .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1944 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Long Range | mages/0/09/Naval_engineering.png" || Submar | decoding="async" height="24" || ine](/wiki/Naval_Tech_Tree#Long_R | loading="lazy" || ange_Submarine "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Streamlined Pressure Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model submarine 4 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || submarine 2 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Improved Schnorkel || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Closed Cycle Engine || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Air Condition and Cooling System || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Electro Submarine Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+​#### [ Semi-Modern Submarine ]{#Semi-Modern_Submarine .mw-headline}​+-----------------------------------+-----------------------------------+| - Historic Year: 1945 | 5 - || - Prerequisites: | [{file-height="24" || <!-- --> | file-width="24" || ``` | url="/i || - [Electro | mages/0/09/Naval_engineering.png" || Sub | decoding="async" height="24" || marine](/wiki/Naval_Tech_Tree#Ele | loading="lazy" || ctro_Submarine "Naval Tech Tree") | width="24" || | }](/wiki/File:Naval_engineering.p || ```{=html} | ng "naval_engineering"){.image} - || <!-- --> | Coated Pressure Hull || ``` | || - Effects: | 5 - || | [{file-height="24" || ``` | file-width="24" || - New Model submarine 5 | url="/i || - Model is now obsolete. | mages/0/09/Naval_engineering.png" || submarine 3 | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Advanced Schnorkel || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/i || | mages/0/09/Naval_engineering.png" || | decoding="async" height="24" || | loading="lazy" || | width="24" || | }](/wiki/File:Naval_engineering.p || | ng "naval_engineering"){.image} - || | Single Propeller Silent Engine || | || | 5 - || | [{file-height="24" || | file-width="24" || | u || | rl="/images/d/dd/Electronics.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wiki/File:Electro || | nics.png "electronics"){.image} - || | Anti-Radar Rubber Coating || | || | 5 - || | [{file-height="24" || | file-width="24" || | url="/imag || | es/9/9d/Technical_efficiency.png" || | decoding="async" height="24" || | loading="lazy" || | width="24"}](/wi || | ki/File:Technical_efficiency.png || | "technical_efficiency"){.image} - || | Semi-Modern Submarine Prototype || | Testing (D) |+-----------------------------------+-----------------------------------+:::​