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fighting ships of the world

ROYAL NAVY - UNITED KINGDOM

SUBMARINES

OBERON submarine (1927)

Oberon 1937

Name No Builder Laid down Launched Comp Fate
Oberon (ex-O1) P21 - N21 Chatham DYd 3/1924 24/9/1926 8/1927 BU 8/1945

 

Displacement standard, t

1311

Displacement normal, t

1598 / 1831

Length, m

82.2

Breadth, m

8.53

Draught, m

4.72

No of shafts

2

Machinery

2 Admiralty diesels / 2 electric motors

Power, h. p.

2950 / 1350

Max speed, kn

13.75 / 7.5

Fuel, t

diesel oil 160

Endurance, nm(kts)

5000(9.5) / 60(4)

Armament

8 - 533 TT (6 bow, 2 stern, 16), 1 x 1 - 102/40 QF Mk IV

Sensors sonar

Complement

54

Diving depth operational, m 60

Ship project history: Design of "O" class submarines was developed on the basis of "L" class boats. New ships intended for service in the Far East and so they required increased endurance and improved seaworthiness in comparison with prototype. Lead Oberon had saddle-tank construction and was built under the 1923 program, operational diving depth was 60 m, maximal was 155 m. Oil fuel tanks were out of a pressure hull and were leaked at big depth. It was possible to be saved of this lack during repair, when riveted tanks were been replaced by welded (also fuel stowage has increased to 186t). Designed speed was 15/9kts, but it has not been even reached. Oberon became the first British submarine with sonar provided even at designing.

Modernizations: 1930s: - 1 x 1 - 102/40 QF Mk IV; + 1 x 1 - 102/40 QF Mk XII

1930s: riveted fuel tanks were replaced by welded ones, fuel stowage rose up to 186 t.

1942 - 1943: + 1 x 1 - 20/70 Oerlikon Mk II/IV

Naval service: Submarine was laid up in 1944.

Ivan Gogin, 2008-10