As the title implies. Here's how things happened OTL. Lockheed won the CX-HLS program in 1965, and this resulted in the C-5A Galaxy. Severe costs overruns plagued the program. A year later Boeing bet Lockheed on the SST - the swing wing 2707 was prefered to Lockheed's "Concorde on steroid" L-2000. Then what happened ? the SST was cancelled in 1971, while the C-5A entered service with USAF. Lockheed, however, was on the verge of bankrupcy, while Boeing triumphed with the 747, and unexpected byproduct of the C-5A / SST boondoggle. Now whatif history had unfolded otherwise ? whatif Boeing had won the C-5A, and Lockheed the SST ? The two immediate consequences are - the C-5A Galaxy and 747 become one and only aircraft - The L-2000 is a more workable design than the swing wing 2707-200 Comments, thoughts ?