Boeing Model 2707 SST

Scope Note: Boeing Model 2707 was Boeing's design for a supersonic transport (SST) aircraft. It was developed under a government contract in the 1960s to compete with the British and French Concorde.

Boeing's design for the Model 2707 kept evolving, from the 2707-100 to the 2707-200 and, eventually (in October of 1968), to the 2707-300. The two most-important versions were the "swing-wing" 2707-200, which, on 31 December 1966, won the FAA's contract to build the American SST; and the 2707-300, which appeared on 21 October 1968 and had simpler, fixed wings, making it little different from the Lockheed L-2000 that had lost to the 2707-200 in 1966.

The contract was cancelled in 1971 when the U.S. Sentate rejected further funding. The cancelled contract resulted in major layoffs at Boeing and had a severe economic impact on the city of Seattle, Washington.