Length:  110m
Width:  13.5m
Draft:  9.6m 
Rated Diving Depth: 600 meters
Displacement:  5700 tons surfaced, 7,900 submerged

Armament: 4 to 6 650mm, 4 533mm torpedo tubes.  Also can launch cruise missiles out of the 533mm tubes.
Propulsion: 190MW reactor, 43,000 hp turbine driving a 7 blade propeller.  2 auxiliary 750hp diesels for emergency power.

Length: 173 m
Width: 23.3 m
Draft: 11 m 
Rated Diving Depth: 400 meters
Displacement:  23,200 tons surface, 48,000 tons submerged
Armament: 20 Intercontinental missiles, 4 630mm, 2 533mm torpedo tubes.
Torpedo capacity: 22 (anti-ship missiles and torpedoes)

Propulsion: 2-90 MW reactors, 2-50,000 hp Steam turbines

Length: 312 feet
Width: 27 feet
Draft: 17 feet
Rated Diving Depth: 300 feet
Displacement: 1600 tons surface, 2400 tons submerged
Armament: Ten 21-inch torpedo tubes, 6 forward, 4 aft
Torpedo capacity: 24 (10 preloaded in tubes, 14 reloads)
Complement: 10 officers, 70 enlisted (wartime)