TYPE: Carrier-based STOL-fighter project
ACCOMMODATION: Pilot only
POWER PLANT: Not available
PERFORMANCE: Not available
COMMENT: There is some evidence that in the mid 1940’s the Boeing Company was working on a fighter project , named Project B.360, with an oval shaped wing, well suited for Short Take-Off/Landing (STOL) operations on carrier decks. The forerunner was the Chance Vought V-173 Flying Pancake demonstrator as well as the two prototypes of the Chance Vought XF5U-1. The B.390 differed from the Vought design in powering with one piston engine driving counter-rotating three-bladed propellers at the airplane‘s nose. No further details are known as well as the designation Boeing XF9B Flying Flapjack remains unclear.