Allied Warships


O-1 class

8 ships

The submarine O-7 (SS-68) of the US Navy.

Technical information

Displacement521/629 BRT 
Length172 feet 
Complement2 + 27 men 
ArmamentFour 18", torpedo tubes, 8 torpedoes.
one 3"/23 deck gun. 
Max speed14/10.5 kts knots (surfaced/submerged)
EnginesNew England Ship and Engine Co diesels, New York Navy Yard electric motors, 1 shaft 
Power880 hp/740 hp  (surfaced/submerged)
Notes on classAll laid up in the reserve fleet by the time of the Second World War. These old boats were unfit for fleet operations and were only used for training. 

US Navy US Navy ships of the O-1 class

To see all O-1 class ships click here.

O-10 (SS-71)
O-3 (SS-64)
O-4 (SS-65)
O-6 (SS-67)
O-2 (SS-63)
O-7 (SS-68)
O-8 (SS-69)
O-9 (SS-70) Lost on 20 Jun 1941

8 Submarines of the O-1 class. 1 of them was lost.

See all US Navy Submarine classes.

Books dealing with this subject include:

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