NAVYPEDIA

Photo

C2 1928

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
C1, 9.1930- C1 Isaac Peral			SECN, Cartagena	7.1923	30.3.1927	7.1928	stricken 1.1950
C2			SECN, Cartagena	9.1923	4.3.1928	7.1928	stricken 6.1951
C3			SECN, Cartagena	5.1924	20.2.1929	5.1929	sunk 12.12.1936
C4			SECN, Cartagena	5.1924	6.7.1929	9.1929	collision 27.6.1946
C5			SECN, Cartagena	10.1924	28.10.1929	4.1930	lost 30-31.12.1936
C6			SECN, Cartagena	2.1925	26.12.1929	9.1930	scuttled 20.10.1937

Technical data

Displacement standard, t
Displacement normal, t	915 / 1143
Length, m	75.3
Breadth, m	6.33
Draught, m	4.12
No of shafts	2
Machinery	2 Vickers diesels / 2 electric motors
Power, h. p.	2000 / 750
Max speed, kts	16.5 / 8.5
Fuel, t	diesel oil 150
Endurance, nm(kts)	6800(10) / 150(4.5)
Armament	C1, 2, 5, 6: 1 x 1 - 76/45 Vickers Mk SS, 6 - 533 TT (4 bow, 2 stern, 10) C3, 4: 1 x 1 - 76/50 Vickers Mk TR, 6 - 533 TT (4 bow, 2 stern, 10)
Complement	40
Diving depth operational, m	90

Graphics

Project history

These submarines were built according to the law from 11.1.1922, ordered 13.10.1922. The design was developed in Spain and in essence represented increased variant of B class boats. New boats differed from latter in considerably increased dimensions but kept the same on capacity batteries, that seriously limited underwater speed and endurance. Building was conducted with assistance of Vickers. Single-hulled. Maximal diving depth was 90m, actually in Civil war it did not exceed 60m.

Modernizations

1938, C4: + 2 x 1 - 13.2/76.

Naval service

C1 Isaac Peral was sunk by aircraft of Nationalists at Barcelona 9.10.1938, she was salvaged 15.11.1938 and towed to Barcelona for repair, 26.1.1939 captured there by troops of Nationalists. She was never commissioned again and used as a source of spare parts for survived sister-ships. C2 during pro-Franco mutiny in Cartagena 5.3.1939 was captured by Nationalists and 7.3.1939 withdrawn by them to Palma (Mallorca) where she was commissioned by National fleet. C3 was sunk at Malaga 12.12.1936 by torpedoes from German submarine U34. C4 during escape of Republican fleet from Cartagena 5.3.1939 left to Bizerte where two days later was interned and transferred to Nationalists 31.3.1939. C4 was lost at Cartagena 27.6.1946 as a result of collision with destroyer Lepanto during exercises. C5 in the late 1936 was lost by unknown cause off Bilbao as result of accident or was scuttled by her commander. C6 was strongly damaged by close air bombs hits at Gijon 18.10.1937 and two days later scuttled near this port. In 1948 she was raised and BU.