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Here's a nice article on Air-Independent-Propulsion (AIP) submarines: http://www.hisutton.com/World%20survey%20of%20AIP%20submarines.html http://www.hisutton.co

Here's a nice article on Air-Independent-Propulsion (AIP) submarines: http://www.hisutton.com/World%20survey%20of%20AIP%20submarines.html http://www.hisutton.com/World%20survey%20of%20AIP%20submarin... The Swedish Gotland class was the world's first purpose-built AIP sub.

dogma1138 9y ago
It wasn't it's was the first and I think only subs that use a Stirling engine based AIP that runs on LOX but AIPs were present in subs since WW2.
- valuearb 9y ago
  Yes, the first operational was a german uboat only launched a few weeks before end of WWII.