Northrop N-1

The Northrop N-1, also called the Northrop Model 1, was a projected flying wing medium bomber designed by Jack Northrop. It grew from a 1937 flying wing bomber concept from his time at Douglas, which had a fuselage ahead of the wing, two pusher propellers and fins on the wingtips. After forming Northrop Corporation in 1939 he reworked it in answer to the Army Air Corps XC-219 requirement for a high altitude medium bomber: the wing was thickened, the crew went inside the airfoil and drooped wingtips with 40 degrees of anhedral replaced the fins. Four remotely operated turrets were planned, and the first engines proposed were two Pratt and Whitney X-1800 liquid cooled H24 units. Northrop never won a contract for a full size N-1, but built the N-1M flying mockup, the forerunner of the YB-35 and YB-49.