The Forgotten American Concordes - Boeing 2707 - Lockheed L-2000 SST

America’s forgotten concordes, the planes that never flew When we think of supersonic passenger air travel, most people will think of Concorde, the joint British & French design which operated from 1976 until 2003 and up until this day, has been the only long term supersonic passenger jet service to operate. What many people don’t know is that in the 60’s a 70’s there were three other competing designs from the United States and Russia. The Russian Tupolev Tu-144 was the first commercial supersonic transpo