Modified A Class,
Japanese Submarines (original) (raw)
Tonnage
2620 tons standard displacement
3603 tons surfaced
4762 tons submerged
Dimensions
340'3" by 38'5" by 19'4"
103.71m by 11.71m by 5.89m
Maximum speed
16.7 knots (surfaced)
5.5 knots (submerged)
Dive
to 330 feet (100 m)
Complement
108
Armament
1 5.5"/50 gun
2x3, 1x1 25mm/60 machine gun
6 21" torpedotubes (12 torpedoes)
2-shaft diesel (4400 hp) or electric (600 hp)
Range
21,000 nautical miles (39,000 km) at 16 knots surfaced
60 nautical miles (110 km) at 3 knots submerged
Modifications
At some point, the units of this class were fitted with schnorkels
The modified Aswere based on the I-12 (A2). They were very large submarines capable of carrying two seaplanes each. The boats also had an anechoic coating of synthetic rubber mixed with sand with a thin plastic covering and were equipped with snorkels. The submarines were modified specifically to reinforce the Sen-toku class submarines in their strike against the Panama Canal.
We list here only those units that were completed before the surrender. Two additional units were laid down but not completed and three more units ordered but never laid down.