NAVYPEDIA

Support the project with paypal


HOME
FIGHTING SHIPS OF THE WORLD
JAPAN
SUBMARINES
"Hei-Gata C2" attack submarines (I46) (1944)


Photo



I48  

Ships


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


Technical data


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(kts)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 equipment2-shiki 2-go radar, 93-shiki sonar, 93-shiki hydrophone, E27 ECM suite
Complement

95

Diving depth operational, m100


Standard scale images


<i>I46</i> 1944
I46 1944


Graphics


<i> I48</i>  
I48  


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.