The United States Supersonic Transport A Progress Report

On 31st December 1966, General McKee of the Federal Aviation Administration announced that The Boeing Company and the General Electric Company had been selected to develop the prototype airframe and engines for the United States supersonic transport. The announcement ended a long, intense competition and was the culmination of the nine years of effort on the part of Boeing, where since January 1958 there has been an identified, separate project devoted to the SST.