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fighting ships of the world

IMPERIAL JAPANESE NAVY (JAPAN)

SUBMARINES

MARCONI ex-Italian submarine (1940/1945)

I504 1945

Name No Yard No Builder Laid down Launched Comp Fate
UIT25, 7/1945 - 504 <I504> (ex-UIT25, ex-Luigi Torelli)     OTO, Muggiano, Italy 2/1939 6/1/1940 5/1940 // 5/1945 surrendered 8/1945, scuttled 16/4/1946

  

Displacement standard, t

1020

Displacement normal, t

1175 / 1465

Length, m

76.5

Breadth, m

6.81

Draught, m

4.72

No of shafts

2

Machinery

2 CRDA diesels / 2 Marelli electric motors

Power, h. p.

3600 / 1500

Max speed, kts

17.8 / 8.2

Fuel, t

diesel oil 118

Endurance, nm(kts) 10500(8) / 110(3)
Armament

2 x 2 - 13.2/76, 8 - 533 TT (4 bow, 4 stern, 12)

Sensors FuMO 30 radar, sonar, hydrophone, FuMB 3 Bali, FuMB  Palau ECM suites

Complement

57

Diving depth operational, m 90

Ship project history: After capitulation of Germany all being in Japan German submarines 8-10/5/1945 were transferred under Japanese control and after assimilation of ships by new crews entered service. 15/7/1945 they have replaced old, still German numbering on accepted in the IJN. It is interesting, that two of these submarines, former Italian Comandante Cappellini and Luigi Torelli, already were once captured by Japanese 10/9/1943, after capitulation of Italy. Both boats then have transferred to Germany for usage as transports.

Modernizations: None.

Naval service: I504 was scuttled by Americans 16/4/1946.

Ivan Gogin, 2008-14