The Pacific War Online Encyclopedia
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| Previous: B1 Class, Japanese Submarines | Table of Contents | Next: B3 Class, Japanese Submarines |
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Tonnage |
2320 tons standard displacement 2624 tons surfaced 3700 tons submerged |
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Dimensions |
350'8" by 30'6" by 17'0" 106.88m by 9.30m by 5.18m |
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Maximum speed |
23.5 knots (surfaced) 8 knots (submerged) |
| Dive | to 330 feet (100m) |
| Complement |
100 |
| Aircraft | 1 seaplane |
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Armament |
1 5.5"/50
gun 1x2 25mm/60 machine gun 6 21" torpedo tubes (17 torpedoes) |
| Machinery |
2-shaft diesel (11,000 hp) or
electric (2000 hp) |
| Range | 14,000 nautical miles (23,000 km) at 16 knots surfaced 96 nautical miles (150 km) at 3 knots submerged |
| Modifications |
Some units replaced the aircraft facilities with a second 5.5" gun. 1944: I-44 converted to a kaiten carrier by removing the aircraft facilities and 5.5" gun and adding fittings for six kaiten. Surviving units likely received Type 13 air search radar and Type 22 surface search radar. |
The B2s were virtually identical with the B1s except for less powerful machinery. An additional eight units were projected but not authorized.
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Completed 1943-7-31 (Kure) |
Missing from 1943-12 off Gilberts |
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| I-41 | Completed 1943-9-18 (Kure) | Sunk 1944-11-18 off Samar by Lawrence C. Taylor and aircraft from Anzio |
| I-42 | Completed 1943-11-3 (Kure) | Torpedoed 1944-3-23 off Angaur by Tunny |
| I-43 | Completed 1943-11-5 (Sasebo) | Torpedoed 1944-2-15 off Guam by Aspro |
| I-45 | Completed 1943-12-28 (Sasebo) | Sunk 1944-10-28 off Surigao by Whitehurst |
| I-44 | Completed 1944-1-31 (Yokosuka) | Sunk 1944-4-10 off Okinawa by Fieberling |
References
CombinedFleet.com (accessed 2009-10-31)
Jentschura, Jung, and Mickel (1977)
The Pacific War Online Encyclopedia © 2007, 2009, 2012 by Kent G. Budge. Index
