November 19th - On This Date - RN Submarine Service

1909	C31	Submarine HMS C31 completed
1909	C32	Submarine HMS C32 completed
1914	W1	Submarine HMS W1 launched
1918	H32	Submarine HMS H32 launched
1918	H47	Submarine HMS H47 launched
1941	Dolfijn	Submarine HMS Dolfijn laid down
1941	Unruly	Submarine HMS Unruly laid down
1048	HMS Sidon	19th November 1948 Taken in hand at Portsmouth for fitting ballast.
1941	HMS Rorqual	HMS Rorqual lays 50 mines in the Bay of Biscay near La Rochelle, France.
1942	HMS Porpoise	HMS Porpoise fires a torpedo against the Italian auxiliary patrol vessel F 39/Fertilia off the Libyan coast. The torpedo missed.
1943	HMS Simoon	HMS Simoon believed lost by mines near the Dardanelles. No survivors HMS Simoom sailed for a patrol in the Aegean on 2nd November 1943. On the 5th she received a signal to divert to the entrance of the Dardanelles. Ten days later she was sent orders to return to port. The submarine never arrived. On 15th November German radio broadcasts stated that a submarine had been destroyed in the Aegean and that several of the crew had been rescued. It is unlikely that this was Simoom, as it would have put her miles out of position. None of the claimed survivors stated that they were from Simoom. It is more likely that the submarine struck a mine or was lost through an accident.
1943	HMS Sibyl	HMS Sibyl sinks a Greek sailing vessel with gunfire in the Gulf of Saloniki, Greece.
1943	HMS Sickle	HMS Sickle torpedoes and sinks the Italian merchant (in German service) Giovanni Boccaccio off Monemvasia, Greece.
1944	HMS Strategem	HMS Stratagem torpedoes and sinks the the Japanese tanker Nichinan Maru in the Malacca Strait.
1944	HMS Thorough	HMS Thorough lays mines in the Strait of Malacca.
1969	HMCS Grilse	HMCS Grilse (ex-USS Burrfish) sunk as a target off San Clemente, California by USN