I46 1944
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| 伊46 [I46] | Sasebo K K | 11/1942 | 3.6.1943 | 2.1944 | sunk 27.10.1944 | ||
| 伊47 [I47] | Sasebo K K | 11/1942 | 29.9.1943 | 7.1944 | surrendered 8.1945, scuttled 1.4.1946 | ||
| 伊48 [I48] | Sasebo K K | 6/1943 | 12.12.1943 | 9.1944 | sunk 23.1.1945 |
|
Displacement standard, t |
2184 |
|
Displacement normal, t |
2557 / 3564 |
|
Length, m |
103.8 pp 107.0 wl 109.3 oa |
|
Breadth, m |
9.10 |
|
Draught, m |
5.35 |
|
No of shafts |
2 |
|
Machinery |
2 Kampon diesels / 2 electric motors |
|
Power, h. p. |
11000 / 2000 |
|
Max speed, kts |
23.5 / 8 |
|
Fuel, t |
diesel oil 220 |
| Endurance, nm | 14000(16) / 60(3) |
| Armament |
1 x 1 - 140/40 11-shiki, 1 x 2 - 25/60 96-shiki, 8 - 533 TT (bow, 20) |
|
Electronic equipment |
2-shiki 2-go radar, 93-shiki sonar, 93-shiki hydrophone, E27 ECM suite |
|
Complement |
95 |
| Diving depth operational, m | 100 |
Project history: Hei-Gata C2 type. Under the 1941 War programme building of 6 submarines under slightly advanced Hei-Gata C1 design was provided, the basic difference consisted in some smaller engine power and absence of midget submarine. Only three submarines were completed, orders on remaining I49-51 were cancelled in 1943. 4 more submarines it was supposed to build under the 1942 programme (Nos 710-713), but works have not been begun.
Modernizations: late 1944, I47, 48: - 1 x 1 - 140/40, torpedoes stowage was decreased; + 4 Kaiten human torpedoes.
1945, I47, 48: + 2 Kaiten human torpedoes
Naval service: I46 after 27.10.1944 was lost, on one of versions, she was sunk 28.11.1944 in Leyte Gulf by US destroyers, on another 28.10.1944 NE off Surigao Strait by US destroyers Helm, Gridley and carrier aircraft. I48 was sunk 23.1.1945 in Carolina Islands area by US escort destroyers Conklin, Corbesier and Raby. I47 was scuttled by Americans 1.4.1946.
I48
© Ivan Gogin, 2008-14