November 28th - On This Date - RN Submarine Service

1917	L22	Submarine HMS L22 laid down
1932	Swordfish	Submarine HMS Swordfish completed
1935	Sea Wolf	Submarine HMS Sea Wolf launched
1940	Thrasher	Submarine HMS Thrasher launched
1956	Explorer	Submarine HMS Explorer completed
1957	Oberon	Submarine HMS Oberon laid down
1944	HMS Stygian	HMS Stygian sinks a Japanese vessel with gunfire off Sabang.
1944	HMS Spark	HMS Spark sinks a Japanese sailing vessel with gunfire of the Mergui Archipelago, Burma.
1944	HMS Strongbow	HMS Strongbow sinks a Japanese tug and a Japanese barge with gunfire off the west coast of Sumatra.