Submarine

HMS Thetis HMS Osiris USS Stickleback S-class submarine Japanese Type 6 submarine HMS Supreme Invincible-class submarine HMS Conqueror Soviet submarine S-2 HMS Stratagem HMS Triton HMS Sea Scout S-13 HMS E13 HMS E19 HMS K4 HMS P222 HMS P311 HMS Safari HMS Sahib HMS Salmon HMS Saracen HMS Satyr HMS Sceptre HMS Scorcher HMS Scotsman HMS Sea Nymph HMS Sea Rover HMS Seawolf HMS Seneschal HMS Shark HMS Sibyl HMS Sickle HMS Snapper HMS Solent HMS Spark HMS Spiteful HMS Splendid HMS Sportsman HMS Springer HMS Starfish HMS Sterlet HMS Stonehenge HMS Storm HMS Stubborn HMS Sturdy HMS Sturgeon HMS Stygian HMS Subtle HMS Sunfish