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Particulars
of British Submarines 1939
U CLASS
ENLARGE
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Undine |
Vickers
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1938 |
| 1936
Estimates |
Unity |
Vickers |
1938 |
|
Ursula |
Vickers |
1938 |
Originally
the U-class were to be unarmed submarines for anti-submarine training.
With the war clouds gathering, however, an operational role was
considered essential. The type that emerged was a small patrol
submarine with a bow salvo of six torpedoes but retaining the
internal main ballast tanks and diesel-electric propulsion proposed
for the unarmed training submarine.
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Dimensions
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191'
x 16.1' x 14' =630 tons (surface)
730
tons (submerged)
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Armament
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Four
21" internal bow torpedo tubes.
Two 21" external bow torpedo tubes.
Ten 21" Mark VIII torpedoes or eight 21" Mark
VIII torpedoes and a 3" Mark III gun. Two Lewis guns
and five rifles.
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Propulsion
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Diesel-electric
with two generators of 615 HP = 11.9 knots (surface)
38 tons oil fuel = 3260 miles at full speed or 7200 miles
at economical speed.
Main motors 825 HP = 10 knots (submerged)
Batteries, 224 cells of 97 tons = 1.8 hrs @ 8 knots
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Hull
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Single
Hull type.
Diving depth 200 feet.
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Complement
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3
Officers and 24 men.
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Detecting
devices
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Two
30 foot periscopes.
Type 129 asdic set.
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