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Pietro Micca  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Pietro Micca			Tosi, Taranto	10.1931	31.3.1935	10.1935	sunk 29.7.1943

Technical data

Endurance, nm(kts)	12000(8) / 80(4)
Displacement standard, t	1371
Displacement normal, t	1545 / 1940
Length, m	90.3
Breadth, m	7.70
Draught, m	5.30
No of shafts	2
Machinery	2 Tosi diesels / 2 Marelli electric motors
Power, h. p.	3000 / 1500
Max speed, kts	15.5 / 8.5
Fuel, t	diesel oil 67 (norm.)
Armament	2 x 1 - 120/45 OTO 1931, 2 x 2 - 13.2/76, 6 - 533 TT (4 bow, 2 stern, 10), 20 mines
Electronic equipment	hydrophone
Complement	72
Diving depth operational, m	90

Standard scale images

Graphics

Project history

Cruiser submarine minelayer. The design was developed by builder. Partially double-hulled. Mines were stored in vertical trunks, in lower part of a pressure hull amidships. Minelaying was realised as on German submarines, downwards. Though thus there were no such problems with trimming as at usage of the horizontal tubes, the similar scheme had two significant lacks. First, minelaying could be realised only if between submarine keel and sea bottom there was sufficient clearance for mine withdrawal; and a backlash blasting on a mine laid "under herself", secondly, was possible.

As a whole these submarine was appeared successful (except of a doubtful method of minelaying), possessed good seaworthiness and quite good manoeuvrability for her dimensions.

Modernizations

late 1940: submarine was converted to transport (ammunition and petrol).

Naval service

Too large for service in Mediterranean sea, she already in the late 1940 has been reoriented on transport service between Italy and Africa. In 1941 Pietro Micca was hard damaged by a torpedo, but repaired. Pietro Micca was sunk 29.7.1943 in the Otranto Straits by British submarine Trooper.