Displacement, tons

3640 standard, 4640 dived

Dimensions, feet (meters)

292.1 X 31.7 X 26 (89 X 9.5 X 7.9) - though Tunny is actually 10 feet longer to accommodate extra sonar and electronic gear

Missiles

Fitted for 4 Harpoon and 8 Tomahawk

Torpedo tubes

4 (21 inch Mk 63 amidships)

A/S weapons

SUBROC (capable) and A/S torpedoes

Main Machinery

1 pressurized, water cooled reactor (Westinghouse S5W), 2 steam turbines; 15000 shp, 1 shaft

Speed, knots

20+ surfaced, 30+ dived

Complement

13/14 officers, 116/126 enlisted men

Diving Depth

1320 feet (400 meters)