NAVYPEDIA

Photo

Giuseppe Finzi 1942  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Pietro Calvi			OTO, Muggiano	7.1932	31.3.1935	10.1935	scuttled 15.7.1942
Giuseppe Finzi			OTO, Muggiano	8.1932	29.6.1935	1.1936	captured by Germany 9.9.1943 (UIT21)
Enrico Tazzoli			OTO, Muggiano	9.1932	14.10.1935	4.1936	lost probably 16.5.1943

Technical data

Displacement standard, t	1331
Displacement normal, t	1525 / 2028
Length, m	84.3
Breadth, m	7.70
Draught, m	5.20
No of shafts	2
Machinery	2 Fiat diesels / 2 San Giorgio electric motors
Power, h. p.	4400 / 1800
Max speed, kts	16.8 / 7.4
Fuel, t	diesel oil 249
Endurance, nm(kts)	13400(8) / 80(4)
Armament	Pietro Calvi, Giuseppe Finzi: 2 x 1 - 120/45 OTO 1931, 2 x 2 - 13.2/76, 8 - 533 TT (4 bow, 4 stern, 16) Enrico Tazzoli: 2 x 1 - 120/45 OTO 1931, 2 x 2 - 13.2/76, 8 - 533 TT (4 bow, 4 stern, 12), 14 mines
Electronic equipment	hydrophone
Complement	77
Diving depth operational, m	100

Standard scale images

Graphics

Project history

Submarine cruisers for service in Red sea and Indian ocean. Improved Balilla. Double-hulled. An auxiliary diesel was not installed on these boats, and high endurance has been received for the account of increase of fuel tanks volume and installation of more efficient main diesels with some lower power. To raise a stability, a hull form was changed, that, in turn, has led to some raise of speed, in comparison with predecessors, despite smaller engine power. Abandoning from an auxiliary diesel has allowed to strengthen armament notably: number of 120mm guns was increased to two, and TTs to eight.

In 1943 Enrico Tazzoli and Giuseppe Finci were converted to transport submarines for routes to Japan.

Modernizations

1943, Enrico Tazzoli: was converted to transport (ammunition and petrol) (Giuseppe Finzi was converted after 8.9.1943 by Germans).

Naval service

Pietro Calvi was sunk 15.7.1942 S of the Azores by British sloop Lulworth. Enrico Tazzoli was lost in May, 1943 in bay of Biscay, the reason is not known (probably sunk 16.5.1943 by Allied aircraft). Giuseppe Finci was captured by German troops 9.9.1943, renamed UIT21 and scuttled at Bordeaux 25.8.1944.