Another little-known fact: prior to 2000, the three organizations in the world racking up the highest number of supersonic flight hours each year were, in desce

Another little-known fact: prior to 2000, the three organizations in the world racking up the highest number of supersonic flight hours each year were, in descending order: 1) British Airways 2) Air France 3) The United States Air Force Military jets don't go supersonic very often or for very l0ng, and virtually never cruise at Mach 2+. (The striking exception being the SR-71, which -- like Concorde -- is now retired.)