Conning Tower and 5"/25 caliber forward deck gun.
Class: Gato-Class
Length: 311 feet, 9 inches
Beam: 27 feet, 3 inches
Engines: 4 Fairbanks-Morse
9 Cylinder opposed piston
diesel engines
model 38 D8-⅛
Motors: 4x Elliott electric motors with reduction gears
Batteries: 2x 4-bladed propellers
Max Speed surfaced: 20 ¼ knots (± 23 MPH)
Max Speed submerged:8 ¾ (± 10 MPH)
Range Speed: 11,000 nautical miles at 10 knots
Patrol Endurance: 75 days max
Test Depth: 300 feet
Crew:Up to 8 officers & 75 enlisted men
Torpedoes:10×21 inch torpedo tubes (6x forward, 4x aft)
24 torpedoes
Forward deck gun:5”/ 25- Caliber
Forward AA gun:40 mm Bofors
Aft AA gun:Twin 20 mm Oerlikon