I believe by reading an article "THE AIR France BRITISH AIRWAYS SUPERSONIC CONCORDE AIRCRAFT FACTS HISTORY INFORMATION AND PICTURES", that a Supersonic Concorde was first introduced in January 26, 1976 and it was first fly in March 2, 1969.
Source: "THE AIR FRANCE BRITISH AIRWAYS SUPERSONIC CONCORDE AIRCRAFT FACTS HISTORY INFORMATION AND PICTURES." The Website For Aviation Enthusiastic. 3 December 2003. 10 March 2010 <http://www.aviationexplorer.com/history_of_the_concorde.htm>.
The Concorde was a supersonic transport turbojet that had its first flight on March 2, 1969. It began public service on January 21, 1976. It was retired from service on November 26, 2003.
2003
1944
The last year the Concorde flew was 2003.
The SR-71 Blackbird was introduced into service in 1966.
It was first flown in 1969, and began regular commercial service on the 21st January 1976.
The Concorde was retired on November 26, 2003.
Srinivasreddy
Bobby
A 2000 Chrysler Concorde uses red, five year antifreeze.
1969
The B-52 entered service with USAF bomber squadrons in 1955.