CA-class submarine

Class overview
Builders	Caproni, Milan
Operators	Regia Marina
Succeeded by	CB class
Built	1938-41
In commission	1938–1943
Completed	4
General characteristics (series I, as completed in 1938)
Displacement	13.5 tonnes (13.3 long tons) (surfaced); 16.4 tonnes (16.1 long tons) (submerged);
Length	10 m (32 ft 10 in)
Beam	1.96 m (6 ft 5 in)
Draught	1.6 m (5 ft 3 in)
Propulsion	One shaft;; 1 × 60 hp (45 kW) diesel engine; 1 × 25 hp (19 kW) electric motor;
Speed	6.25 kn (12 km/h; 7 mph) (surfaced); 5 knots (9 km/h; 6 mph) (submerged);
Complement	2
Armament	2 × 17.7 in (450 mm) torpedoes

The CA class were a group of midget submarines built for the Italian Navy during World War II.