USS Argonaut (1927)
Cruiser submarine (1925-1943) The unique V4, SM-1, SS-166 or USS Argonaut was an experimental US Navy cruiser submersible, and world’s largest until the French Surcouf, or the Japanese STO class in WW2. She was the very reason the cruiser submersible was not adopted, despite two smaller vessels, V5 and 6 being built afterwards. She would … Read more