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---
title: Submarine
---
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The Submarine is designed to travel underwater allowing it to operate
clandestinely against other naval units. Its main armament consists of
torpedoes which are deadly against all other types of vessel, be they
Carrier, Battleship, Naval Transport or another Submarine. However, the
Submarine can be handicapped by a short range and new technologies to
improve them can be expensive.

## [ Submarine Statistics ]{#Submarine_Statistics .mw-headline}

------------------------ ------ -------- ------ -------- -------- ----- -------- ---------- -------- --------- -------- -------- ------ --------- ------- ------- -------- ------- -------
  Model                    Year   Air      Air    Sea      Sub      Sea   Convoy   Distance   Visi-\   Surface   Sub      Air      Cost   Build-\   Man-\   Max     Supply   Fuel    Range
                                  Attack   Def.   Attack   Attack   Def   Attack              bility   Detect    Detect   Detect          time      power   Speed   Cons.    Cons.

Dive Boat Submarine      1936   0        4      1        1        1     3        0.15       5        2         1        1        2.0    90        0.5     10      0.30     0.50    500

Short Range Submarine    1936   0        5      2        2        2     5        0.16       4        3         1        1        2.0    110       0.5     12      0.40     0.50    2500

Medium Rng Submarine     1936   1        6      3        3        3     6        0.17       3        4         1        1        2.0    160       0.5     16      0.50     0.70    3000

Long Range Submarine     1938   1        8      3        4        4     7        0.18       3        5         1        1        3.0    160       0.5     18      0.60     0.80    3500

Electro--Sub Submarine   1944   1        9      4        8        5     9        0.19       2        5         3        1        4.0    160       0.5     18      0.70     0.50    3500

Semi--Modern Submarine   1945   1        11     5        10       8     10       0.20       1        6         4        1        5.0    160       0.5     21      0.70     0.50    4000

Nuclear Submarine        1945   1        14     6        12       12    12       0.20       1        7         5        1        8.0    320       0.5     25      1.90     0.00    8000
  ------------------------ ------ -------- ------ -------- -------- ----- -------- ---------- -------- --------- -------- -------- ------ --------- ------- ------- -------- ------- -------

## [ Brigades allowed ]{#Brigades_allowed .mw-headline}

-   None

## [ Notes ]{#Notes .mw-headline}

-   Submarines cannot shore bombard. Instead, they have a higher convoy
    attack value (other ships use their sea attack).
-   Please read the [Submarine
    Guide](/wiki/Submarine_Guide "Submarine Guide") for a detailed
    analysis of this unit in the different versions of HoI.
:::