Adua-class submarine

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Class overview
Name: Adua class
Builders: Odero Terni Orlando (OTO), Muggiano
Cantieri Riuniti dell' Adriatico (CRDA), Monfalcone
Tosi, Taranto
Operators:  Regia Marina
Preceded by: Perla class
Succeeded by: Acciaio class
In commission: 1937–1948
Completed: 17
Lost: 16
General characteristics
Type: Submarine
Displacement: 698 long tons (709 t) surfaced
866 long tons (880 t) submerged
Length: 60.28 m (197 ft 9 in)
Beam: 6.45 m (21 ft 2 in)
Draught: 4.64 m (15 ft 3 in)
Propulsion: 2 diesel engines, 2 electric motors
Speed: 14 knots (26 km/h; 16 mph) surfaced
7.5 knots (13.9 km/h; 8.6 mph) submerged
Range: 3,180 nmi (5,890 km) at 10.5 kn (19.4 km/h) surfaced
Test depth: 80 m (260 ft)
Complement: 46
Armament: 1 × 100 mm (4 in)/47 calibre deck gun
6 × 533 mm (21 in) torpedo tubes (4 forward, 2 aft)
12 × torpedoes

The Italian Adua-class submarine was the fourth subclass of the 600 Series of coastal submarines of the Regia Marina that served during World War II.

There were 17 submarines in this class, almost all named after places in Ethiopia which had been an Italian colony since 1936, but only one, Alagi, survived through World War II.

Three submarines of this class (Gondar, Ascianghi, and Neghelli) were sold to Brazil and replaced with submarines of the same names.


Ship Builder Launched Fate
Adua CRDA 13.9.1936 sunk on 30 September 1941, by destroyers HMS Gurkha and HMS Legion, Western Mediterranean sea
Alagi CRDA 15.11.1936 sold for scrap on 1 February 1948
Aradam CRDA 18.10.1936 sunk on 4 September 1944 in Genoa by Allied bombers
Ascianghi OTO 5.12.1937 scuttled near Augusta, Sicily on 23 July 1943, after attack of destroyers HMS Laforey and HMS Eclipse
Axum CRDA 27.9.1936 scuttled near Morea on 28 December 1943, during a mission for the Allies
Beilul OTO 22.5.1938 sunk by Allied air attack, May 1944
Dagabur Tosi 22.11.1936 sunk during Operation Pedestal by the British destroyer HMS Wolverine
Dessiè Tosi 22.11.1936 sunk on 28 November 1942 by destroyers HMS Quiberon and HMS Quentin, near Bona, Algeria.
Durbo OTO 6.3.1938 scuttled on 18 October 1940 east of Gibraltar after attack by destroyers HMS Firedrake and HMS Wrestler
Gondar OTO 3.10.1937 scuttled on 30 September 1940, near Alexandria, after attack by destroyers HMAS Stuart and HMS Diamond
Lafolè OTO 10.4.1938 sunk on 20 October 1940, north of Melilla by destroyers HMS Gallant, HMS Hotspur and HMS Griffin
Macallé OTO 29.10.1936 assigned to the Red Sea Flotilla and ran aground on 15 June 1940 when the crew was disabled by central nervous system poisoning from a chloromethane leak in the ship's air conditioning system.[1]
Neghelli OTO 7.11.1937 sunk on 19 January 1941 by destroyer HMS Greyhound
Scirè OTO 6.1.1938 sunk on 10 August 1942 off Haifa by HMS Islay
Tembien OTO 6.2.1938 sunk on 2 August 1941, west of Malta, by HMS Hermione
Uarsciek Tosi 19.9.1937 sunk on 14 December 1942, south of Malta, by HMS Petard and the Greek destroyer Vasilissa Olga
Uebi Scebeli Tosi 3.10.1937 sunk on 29 June 1940 by HMS Dainty and HMS Ilex

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