April 3rd - On This Date - RN Submarine Service

1907	C9	Submarine HMS C9 launched
1943	Upstart	Submarine HMS Upstart completed
1943	Varne	Submarine HMS Varne completed
1918	HMS E9	Scuttled in Hesingfors Bay to prevent her falling into German hands.
1918	HMS E19	HMS E19 was scuttled in the Baltic to avoid capture on 3 April 1918
1943	HMS Safari	HMS Safari sinks the Italian sailing vessel Nasello and the Italian fishing vessel S. Francisco di Paola A. with gunfire off the Gulf of Orosei, Sardinia, Italy.
1943	HMS Trident	HMS Trident fires 6 torpedoes against a submarine off La Spezia, Italy. All torpedoes missed their target.
1944	HMS Ultor	HMS Ultor sinks four sailing vessels off Kythira Island, Greece.
1945	HMS Thule	HMS Thule sinks two Japanese sailing vessels with gunfire of the west coast of Siam

SAB