Douglas 2229

The Douglas Model 2229 was a supersonic transport that Douglas Aircraft Company began as a private study and carried as far as cockpit mock-ups and wind-tunnel models. Following the layout of the B-70 Valkyrie, it used a compound delta wing, four engines in a long box under the wing, two small canards high on the fuselage and a rising nose ramp, with the outer wing tips folding down at high speed. By detail design it had settled at about 420,000 pounds for 100 passengers, heavier than a Boeing 707 with fewer seats. Studies showed poor economics, and in August 1963 Douglas declined to enter it in the National Supersonic Transport program.