Development for the plane has moved quite slowly since then ... of something called the Next-Generation Adaptive Propulsion (NGAP). That would be the engine that will power the NGAD, which ...

NGAP engines could end up powering the U.S. Navy F/A-XX future sixth-generation carrier-capable stealth fighter, despite the Navy announcing plans to develop the plane independently from the Air ...

Though the plane itself is still many years away from ... s requirements for the Next-Generation Adaptive Propulsion (NGAP) program that seeks to produce an engine for the NGAD stealth fighter ...