Submarine USS Drum((SS-228)Gato Class Submarine.L:311.9ft,Beam:27.3ft,Draft:17.0ft.,Propulsion:4xFairbanks Morse model 38D8-1/3 9 cylinder opposed piston diesel engines driving electric generators,2x126 cell Sargo batteries,4x high speed Elliott electric motors with reduction gears,and two props.

Submarine USS Drum((SS-228)Gato Class Submarine.L:311.9ft,Beam:27.3ft,Draft:17.0ft.,Propulsion:4xFairbanks Morse model 38D8-1/3 9 cylinder opposed piston diesel engines driving electric generators,2x126 cell Sargo batteries,4x high speed Elliott electric motors with reduction gears,and two props.