Bell's P-59 Airacomet, designed as the XP-59A as part of a security program (the XP-59 was a twin-boom piston-powered pusher design) was America's first jet-powered airplane. Powered by two GE-Whittle I-16 jet engines mounted in housings at the wing roots – often credited as being the first jet plane with the engine nacelles integrated into the fuselage – its performance was deemed inadequate to warrant the plane being introduced to combat. Most P-59s were used as trainers or testbeds.

One airframe was traded to Great Britain for an early Gloster Meteor, to enable testing of both planes by both Allies. In England, it seems to have been nicknamed the Squirt.