Italian submarines 600 class

Sirena, Perla, Adua, Acciaio sub class

Porfido of Acciaio class

Italian submarine Porfido of Acciaio class in typical colours for the Mediterranean.

Sirena, Perla, Adua, Acciaio classes.
Type: Italian 600 class submarines.

History:

Dating coming from a time of effective growth for the Italian navy’s sub arm, the 12 Sirena class subs were known as well as the Six hundred class submarines. This number was an indication of their regular surface displacement and, although the ultimate model overtook this with a significant edge, they demonstrated really useful submarines for the restricted environments of the Mediterranean sea. Their fine detail layout was substantially dependant upon that of the previous Argonauta class, but, because they were laid down prior to the latter’s access into the Italian navy, they did not take advantage of operational knowledge. Easy and tougher, they were intensely employed and encountered consequently, just one living past the armistice of Sept 1943.

10 practically similar types, the Perla class, followed on. 2 of these, Iride and Onice, served a bit controversially under Spanish Nationalist flags through the Spanish Civil War. Throughout WW2 , the Iride, along with the Ambra, were changed into transport SLC human torpedoes. The second submarine had previously famous herself when, 2 days following the Battle of Cape Matapan, she had sunk the Uk cruiser HMS Bonaventure. As soon as transformed, she continued to attack the port at Algiers in Dec 1942, seriously damaging 4 ships adding up to 20,000 gross registered tons.

An additional virtual replicate class had succeeded in the 17 Adua class submarines, launched 1936-1938. 2 of these also were transformed into carry SLCs and one of these the Sore, was especially effective. She raided Gibraltar on at least 4 actions, the raid of September 1941 comprising 2 ships, including the auxiliary tanker Denbydale. Her finest raid, nevertheless, was in December 1941 when her three SLCs place the battleships HMS Queen Elizabeth and HMS Valiant, along with a tanker, on the ground of Alexandria port. She was eventually sunk by the anti-submarine trawler May (other sources: by corvette Islay) in front of Haifa in August 1942.

The last appearance of the ‘600’ type was in the bigger 13-boat Acciaio class of 1941-1942.

Users: Italy.


Pictures Italian submarines 600 class


Specifications for Sirena class

Specifications
Sirena class specification
Type submarine
Displacement 679-701 tons surfaced, 842-860 tons submerged
Length 197 ft
Bream 21 ft 2 in
Draught 15 ft 5 in
Engines surfaced diesels and submerged electric motors with two shafts
Power 1,200 hp surfaced, 800 hp electric motors
Fuel ?
Speed surfaced 14 kts, submerged 8 kts
Range surfaced 5,590 miles at 8 kts, submerged 84 miles at 4 kts
Diving depth ?
Crew 45
Armament
Sirena class specification
Main Armament six 533-mm (21-in) torpedo tubes: four forward and two aft with 12 torpedoes
Secondary Armament one 100-mm (3.9-in) gun
Anti-Aircraft two (later four) 13.2-mm (0.52-in) machine-guns
Service statistics
600 class data
Boats 12 Sirena class, 10 Perla class, 17 Adua class (1936-1938), 13 Acciaio class (1941-1942)
Remaining 11 of Sirena class sunk 1940-1943

Model of Adua and Acciaio class submarines

Adua and Acciaio class subs

Adua (above) and Acciaio (below) class submarines.


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