Ships of the Royal Navy . l\ H 48. 169. J 7. 170 SUBMARINES [continued) J class (6 boats), Emergency War Programme, 1915-17J. 1, J. 2 (Portsmouth Dockyard) ; J. 3, J. 4 (Pembroke Dockyard) ; J. 5, J. 7 (Devonport Dockyard) ; (Royal Australian Navy. Presented 1918). In 1915 the first of the Admiralty double-hulled boats was built. She was 151 feet long andalthough two more of the type were ordered, they were not altogether a success, mainly on account oftheir small size. The G class which followed were double-huUed, 187 feet long and 700/975 tons dis-placement and may be regarded as our fi
Ships of the Royal Navy . l\ H 48. 169. J 7. 170 SUBMARINES [continued) J class (6 boats), Emergency War Programme, 1915-17J. 1, J. 2 (Portsmouth Dockyard) ; J. 3, J. 4 (Pembroke Dockyard) ; J. 5, J. 7 (Devonport Dockyard) ; (Royal Australian Navy. Presented 1918). In 1915 the first of the Admiralty double-hulled boats was built. She was 151 feet long andalthough two more of the type were ordered, they were not altogether a success, mainly on account oftheir small size. The G class which followed were double-huUed, 187 feet long and 700/975 tons dis-placement and may be regarded as our first ocean-going submarines; from these the J class weredeveloped and both in appearance and general design they are big editions of the G boats. In orderto counter certain German submarines whose speed was alleged to have been over 18 knots, they weredesigned for knots on the surface, which made them the fastest subrharines afloat. As originallycompleted tliey carried a 4-inch gun on the breast-work forward of the conning tower, b
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Keywords: ., bookcentury1900, bookdecade1920, bookidshipsofroyal, bookyear1922
