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Photo

I503

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
UIT24 (ex-UIT24, ex-Commandante Cappellini), 7.1945- 伊503 [I503]			OTO, Muggiano, Italy	4.1938	14.5.1939	9/1939 // 5.1945	surrendered 8.1945, scuttled 15.4.1946

Technical data

Displacement standard, t	947
Displacement normal, t	1043 / 1290
Length, m	73.0
Breadth, m	7.19
Draught, m	5.10
No of shafts	2
Machinery	2 Fiat diesels / 2 CRDA electric motors
Power, h. p.	3600 / 1100
Max speed, kts	17.4 / 8
Fuel, t	diesel oil 108
Endurance, nm(kts)	8000(8) / 120(3)
Armament	1 x 2 - 20/65 C/38, 8 - 533 TT (4 bow, 4 stern, 16)
Electronic equipment	FuMO 30 radar, sonar, hydrophone, FuMB 3 Bali, FuMB 6 Palau ECM suites
Complement	57
Diving depth operational, m	100

Standard scale images

Graphics

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

I503 was scuttled by Americans 5.4.1946.