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fighting ships of the world

IMPERIAL JAPANESE NAVY (JAPAN)

SUBMARINES

"Hei-gata C2" attack submarines (1944)

I46 1944

Name No Yard No Builder Laid down Launched Comp Fate
46 <I46>     Sasebo K K 11/1942 3/6/1943 2/1944 sunk 27/10/1944
47 <I47>     Sasebo K K 11/1942 29/9/1943 7/1944 surrendered 8/1945, scuttled 1/4/1946
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)

Sensors

2-shiki 2-go radar, 93-shiki sonar, 93-shiki hydrophone, E27 ECM suite

Complement

95

Diving depth operational, m 100

Ship 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