‘J’ Class Submarines

'‘J’ Class Submarines' can also refer to...


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(J1, J2, J3, J4, J5, J7). Displacement 1210 tons (surfaced); length 275.5 feet; beam 23 feet; speed 19.5 knots surfaced, 9.5 knots submerged; armament 6 × 18-inch torpedo tubes, 1 or 2 × 4-inch guns.


Subjects: Military History.

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