making the Seawolf silent speed of 25 knots and doubling the Kilo endurance

[TLAM Strike]

[quote=To be]

Originally Posted by Castout

Additionally, the pump-jet is quieter, but not silent, and has been used on other subs besides the seawolf, such as the British Trafalgar class.

Not to mention the Russian Kilo submarine Alrosia.

BTW a pumpjet is not as efficent as a normal prop so if you had two submarines of the same class and one was outfitted with a pump jet it would be eather slower and quieter or noiser due to the higher amount of turns being put on the shaft for the same speed. Pump jets make a sub quieter but at slower speeds, they are by no means a HFRO style "Silent Drive".