Why don't dieseal subs use pumpjets propulsors
Why don't the state of the art diesel electric subs like the Collins or the Type 212 use pumpjet propulsors like the Astute, Trafalgar, or VA?....:hmm: Supposedly pumpjets are more efficient so the subs would gain longer ranges with more fuel effeciency hypothetically. What's keeping them from equipping them?
Ideas?
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