::J-class submarines::

J-class submarines

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History Learning Site > World War One > British submarines in World War One > Anti-submarine developments > J-class submarines

J-class submarines statistics:

Number completed before 1919	7
Number completed after 1919	0
Lost in action	0
Lost accidentally	1
Prototype date	1916
Surface tonnage	1210
Submerged tonnage	1820
Length	275 feet
Engine	Diesel
Horsepower	3,600
Screws	3
Surface speed	19.5 knots
Submerged speed	9.5 knots
Torpedo tubes	18 inches
Number of torpedoes tubes	6
Guns	2 x 3 inches
Crew	44

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