R-Class Specifications

Lead Boat: SS-78, U.S.S. R-1
Length: 186′
Beam: 18′
Draft: 15′ 6″ (Surface trim)
Displacement: 574 tons (surfaced); 685 tons (submerged)
Speed: 12.5 knots (surfaced); 9.3 knots (submerged)
Diving Depth: 200′ (test depth)
Range: 4,700 miles @ 6.2 knots
Crew: 4 officers; 3 CPO; 26 enlisted
Deck Gun: 1-3″/50-caliber
Anti-Aircraft Weapons: Machine guns
Torpedoes: 4-21″ torpedo tubes (bow), 8 torpedoes
Engines: 2 diesel, direct drive
Motors: 2 DC motor/generators
Sonar: Hydrophones only

 

Hull NumberNameCommissionFateClass
SS-78R-11918Scrapped 1946R-Class
SS-79 R-21919Scrapped 1945R-Class
SS-80 R-31919Scrapped 1948R-Class
SS-81 R-41919Scrapped 1946R-Class
SS-82 R-51919Scrapped 1946R-Class
SS-83 R-61919Scrapped 1946R-Class
SS-86R-91919Scrapped 1946R-Class
SS-87R-101919Scrapped 1946R-Class
SS-88R-111919Scrapped 1946R-Class
SS-89 R-121919Lost June 1943R-Class
SS-90R-131919Scrapped 1946R-Class
SS-91R-141919Scrapped 1945R-Class
SS-92R-151919Scrapped 1946R-Class
SS-93R-161919Scrapped 1946R-Class
SS-94R-171918Scrapped 1945R-Class
SS-95R-181918Scrapped 1946R-Class
SS-96R-191918To U.K., lost in collision June 1942R-Class
SS-97R-201919Scrapped 1946R-Class