Italian submarine Giuseppe Finzi

History
Kingdom of Italy
Name	Giuseppe Finzi
Builder	Odero-Terni-Orlando, Muggiano, La Spezia
Laid down	1 August 1932
Launched	29 June 1935
Commissioned	8 January 1936
Captured	by Germany 9 September 1943
Nazi Germany
Name	UIT-21
Acquired	9 September 1943
Fate	Scuttled 25 August 1944
General characteristics
Class and type	Calvi-class submarine cruiser
Displacement	1,549 t (1,525 long tons) (surfaced) 2,061 t (2,028 long tons) (submerged)
Length	84.3 m (276 ft 7 in)
Beam	7.7 m (25 ft 3 in)
Draft	5.2 m (17 ft 1 in)
Installed power	4,400 bhp (3,300 kW) (diesels) 1,800 hp (1,300 kW) (electric motors)
Propulsion	2 shafts; diesel-electric 2 × diesel engines 2 × electric motors
Speed	16.8 knots (31.1 km/h; 19.3 mph) (surfaced) 7.4 knots (13.7 km/h; 8.5 mph) (submerged)
Range	11,400 nmi (21,100 km; 13,100 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced) 120 nmi (220 km; 140 mi) at 3 knots (5.6 km/h; 3.5 mph) (submerged)
Test depth	90 m (300 ft)
Crew	77
Armament	8 × 533 mm (21 in) torpedo tubes (4 bow, 4 stern) 2 × single 120 mm (4.7 in) deck guns 2 × twin 13.2 mm (0.52 in) machine guns

Giuseppe Finzi was one of three Calvi-class submarines built for the Regia Marina (Royal Italian Navy) during the 1930s. Completed in 1936, she played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists. The submarine made multiple patrols in the Atlantic Ocean during the Second World War, sinking five Allied ships. Gisueppe Finzi began conversion into a transport submarine in 1943, but was captured by the Germans in September 1943 before it was completed and redesignated as UIT-21. She was scuttled by them in August 1944 to prevent her capture.