The submarine U.S.S. Nautilus was the first oceangoing vessel to use this form of power
The use of nuclear power 
allowed these submarines to become true... [DOC] [TLE] The Evolution Of The Submarine As A Warship - Pakistan Defence [PAR] The first submarine  the firstElektroboot  using Walter's hydrogen ... Ocean-
going Elektroboots ... Left: A model of U-3017, a Type XXI U-boat operated by 
Royal Navy as HMS ...