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Vettor Pisani 1943  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Giovanni Bausan			CNT, Monfalcone	1.1926	24.3.1928	9.1929	floating oil depot 4.1942
Marcantonio Colonna			CNT, Monfalcone	12.1925	26.12.1927	7.1929	hulk 4.1942
Des Geneys			CNT, Monfalcone	2.1926	14.11.1928	10.1929	floating charging station 4.1942
Vettor Pisani			CNT, Monfalcone	11.1925	24.11.1927	6.1929	discarded 3.1947

Technical data

Displacement standard, t	808
Displacement normal, t	866 / 1040
Length, m	68.2
Breadth, m	6.09
Draught, m	4.93
No of shafts	2
Machinery	2 Tosi diesels / 2 CGE electric motors
Power, h. p.	3000 / 1100
Max speed, kts	17.3 / 8.8
Fuel, t	diesel oil 70
Endurance, nm(kts)	5000(8) / 70(4)
Armament	1 x 1 - 102/35 Schneider-Armstrong 1914-15, 2 x 1 - 13.2/76, 6 - 533 TT (4 bow, 2 stern, 9)
Electronic equipment	hydrophone
Complement	48
Diving depth operational, m	90

Standard scale images

Graphics

Project history

Design was developed by builder under the same technical requirements, as Mameli class. Single-hulled. They exceeded Mameli class on endurance, but, as well as the latter, had insufficient stability. Soon after commission they received external bulges: the stability was raised, but speed has fallen from 17.3/8.8 to 15/8.2kts.

Modernizations

1930, all: bulges were fitted, max speed was 15 / 8.2 kts.

Naval service

To the war beginning they were considered become outdated, and since 1942 three boats were disarmed  and converted to battery recharging stations and fuel oil hulks.