(Underwater Auxiliary Propulsion Engine) based on a closed circuit diesel fueled by liquid oxygen, which provides an underwater range of 400 nmi...
comprehensive passive and active detection equipment and an Air Independent Propulsion system (AIP) called UAPE (Underwater Auxiliary Propulsion Engine)...
PN mini-submarine fleet; (Underwater Auxiliary Propulsion Engine), created by Italtech, the company that later was envolved in the OFF scandal.