B-1  

Country:  Spain

Class, [Type]: B, [SS].

Builder: SECN, Cartagena, Spain.

Launch date: 21 June 1921.

Commission date: 11 January 1922.

Decommission date: 21 October 1941.

Displacement ( tons ): 564 surfaced, 716 submerged.

Dimensions ( metres ): 64,18 x 5,6 x 3,44

Main machinery: 2 x diesel ( 1.400 hp ), 2 x electric ( 420 hp ).

Speed ( knots ): 16,22 surfaced. 10,5 submerged.

Range ( miles ): 2.600 at 16 knots surfaced, 4.900 at 10,5 knots surfaced, 90 at 4,5 knots submerged.

Complement: 34.

Guns: 1 x 76mm.

Torpedoes: 4 x 450mm tubes ( 2 forward + 2 aft ), 8 x Whitehead X-150 torpedoes.

Comment: Depth limit was 60m. Submarines of this class were the first ones built completely in Spain.