The McDonnell XF-85 Goblin was an American prototype fighter aircraft conceived during World War II by McDonnell Aircraft. It was intended to be deployed from the bomb bay of the giant Convair B-36 bomber as a parasite fighter. The XF-85's intended role was to defend bombers from hostile interceptor aircraft, a need demonstrated during World War II. Two prototypes were constructed before the program was terminated.

For practical purposes, there are a couple of differences from the real XF-85:
• Inclusion of landing gear. The original XF-85 included no landing gear to save weight, and would instead be retrieved by its B-29 or B-36 mothership in the air.
• Inclusion of pitch control surfaces on the main wings.

The only other controls to be aware of is VTOL up for air brakes/spoilers. Be cautious when landing this aircraft, it can get unstable when brakes are applied on the runway, that is why the spoilers are connected to VTOL controls: to gradually slow down the aircraft.