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I-12, Japanese Submarine


Specifications:


Tonnage

2390 tons standard displacement
2934 tons surfaced
4172 tons submerged

Dimensions

357'5" by 31'4" by 17'8"
108.94m by 9.55m by 5.38m

Maximum speed      

17.7 knots (surfaced)
6.2 knots (submerged)
Dive to 330 feet (100 m)

Complement

114
Aircraft 1 seaplane

Armament

1 5.5"/50 gun
2x2 25mm/60 machine gun
6 21" torpedo tubes (18 torpedoes)
Machinery
2-shaft diesel (4700 hp) or electric (1200 hp)
Range 22,000 nautical miles (41,000 km) at 16 knots surfaced
75 nautical miles (139 km) at 3 knots submerged
Modifications
Likely received Type 13 air search radar and Type 22 surface search radar in late 1944.

The I-12 was a one-off modification of the A1 class (A2 class) designed to trade top speed for range. She was completed on 25 April 1944 at Kawasaki's Kobe yard and went missing from 5 January 1945 in the central Pacific.


References

Carpenter and Polmar (1986)

CombinedFleet.com (accessed 2008-3-24)

Jentschura, Jung, and Mickel (1977)

Worth (2001)


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