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U1 Class, British Submarines


Photograph of U1-class submarine

Imperial War Museum. Via Wikipedia Commons


Specifications:


Displacement

630 tons surfaced

730 tons submerged

Dimensions

190'7" by 15'9" by 15'9"
58.1m by 4.8m by 4.8m

Maximum speed      

11.5 knots surfaced
9 knots submerged

Dive to 200 feet
to 60 meters

Complement

33

Armament

4 21" torpedo tubes (8 torpedoes, 6 mines)
1 3"/40 dual-purpose gun
2 0.303 machine guns
Machinery
2-shaft diesel (615 hp) or electric (825 hp)

Range

4050 nautical miles (7500 km) at 10 knots surfaced
120 nautical miles (220 km) at 2 knots submerged

Bunkerage 38 tons diesel oil

The U2s were rather small submarines of limited range constructed in great haste in the first years of the Second World War. The first three units were built for training purposes, but they proved delightfully maneuverable and were easy to construct and operate, making them a suitable design for mass-produced coastal defense boats. Their individual weakness was compensated by their numbers in the North Sea and Mediterranean. However, they lacked the qualities of range and endurance needed in the Far East, though one source claims a single unit was deployed to the Indian Ocean in 1944.


Units in the Pacific:

Una     
Arrived 1944


References

Bagnasco (1977)

McCartney (2006)

Worth (2001)



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