The Dean Delt-Air 250 was an American twin-seat amateur-built, delta wing light aircraft.
[1] The Delt-Air was a single-engined all-metal light aircraft powered by a 180 hp (134 kW) Lycoming O-360 engine mounted at the rear driving a pusher propeller.
It had a tricycle landing gear and rear-hinged canopy for access to the tandem cockpit.
Registered N6379T it was destroyed during its first flight on 8 November 1961 and the designer killed.
[1][2] Data from Flight International January 1962[1]General characteristics Performance