Marcello class submarine

German submarine UIT24 in the Inland Sea, Japan, August, 1944. UIT24 was the ex-Italian submarine Comandante Cappelini and was later the IJN I-503.
Class overview
Operators:	Regia Marina
In commission:	1938–1947
Completed:	11
Lost:	10
Scrapped:	1
Preserved:	0
General characteristics
Type:	Submarine
Displacement:	1,060 long tons (1,080 t) surfaced 1,313 long tons (1,334 t) submerged
Length:	73 m (239 ft 6 in)
Beam:	7.19 m (23 ft 7 in)
Draught:	5.1 m (16 ft 9 in)
Propulsion:	Diesel-electric 2 × CRDA diesels (first 9 vessels) 2 × Fiat diesel engines (last 2 vessels) 2 × CRDA electric engines (all vessels)
Speed:	17.4 knots (20.0 mph; 32.2 km/h) surfaced 8 knots (9.2 mph; 15 km/h) submerged
Range:	2,500 nmi (4,600 km) at 17 knots (31 km/h) surfaced 7,500 nmi (13,900 km) at 9.4 knots (17 km/h) surfaced 8 nmi (15 km) at 8 knots (15 km/h) submerged 120 nmi (220 km) at 3 knots (6 km/h) submerged
Test depth:	100 m (330 ft)
Complement:	58
Armament:	8 × 533 mm (21 in) torpedo tubes (4 bow, 4 stern) 2 × 100 mm (3.9 in)/47 guns 4 × 13.2 mm (0.52 in) machine guns

The Marcello-class was a class of eleven submarines built by CRDA in Trieste for the Royal Italian Navy (Italian: Regia Marina). The submarines were built from 1938 to 1939, and all eleven served in the Mediterranean at the start of the Second World War. After Bordeaux in August 1940. Four boats were sunk in the Atlantic, and two were converted to transports for trade with Japan. One of the latter pair, Comandante Cappellini (sometimes also called Cappellini), was commissioned into the Germany Kriegsmarine as UIT-24, and the Imperial Japanese Navy as I-503. Only edit] Class members

• Barbarigo
• Comandante Cappellini (also called Cappellini)
• Comandante Faà di Bruno (also called Faà di Bruno)
• edit] References
  • Regia Marina
  • Erminio Bagnasco, Submarines of World War Two, Cassell & Co, London. 1977 ISBN 1-85409-532-3
  • Reference to Nani at uboat.net