June 27th - On This Date - RN Submarine Service

1918	L11	Submarine HMS L11 completed
1942	Saracen	Submarine HMS Saracen completed
1942	Taurus	Submarine HMS Taurus launched
1945	Thermopylae	Submarine HMS Thermopylae launched
1941	HMS Triumph	HMS Triumph on patrol off the Egyptian coast sinks the Italian submarine Salpa
1943	HMS Trident	HMS Trident sinks a sailing vessel with gunfire north of Crete.
1943	Osiris	HMS Osiris sinks the Italian sailing vessel Vittorina with gunfire north of Crete.
1944	HMS Sea Rover	HMS Sea Rover sinks a Japanese sailing vessel with gunfire off Penang.
1944	HMS Truculent	HMS Truculent sinks a Japanese sailing vessel with gunfire in the Malacca Strait.
1944	HMS Ultor	While on patrol off Nizza, southern France HMS Ultor torpedoes and sinks the German tankers Felix 1 and Tempo 3.
1952	HMS Sidon	Refit completed HMS Sidon re-commissioned into the 2nd Submarine Squadron, based at Portland for submarine and anti-submarine training In "A Submariner's story" commissioning engineer officer Joel C E Blamey tells how the first trial dive out of the yard ended up with Sidon plunging down with a severe bow down angle striking the shingle bottom at 158 feet. A dockyard modification had caused a complete loss of the telemotor pressure resulting in the loss of control of the main vents and hydroplanes and other equipment. While quite frightening no serious damage was done.

SAB