HMS Spur
S-class submarine
HMS Spur was a S-class submarine of the third batch built for the Royal Navy during World War II. She survived the war and was sold to Portugal in 1948. Wikipedia
Launched: November 17, 1944
Speed: 14.75 knots (27.32 km/h; 16.97 mph) surfaced; 9 knots (17 km/h; 10 mph) submerged