The California Science Center

Its a CIA A-12 as it has no rear 'window' for a 2nd crewmans position. The USAF SR-71 had an integrated back seater that wasn't in a raised position like this trainer. The solo CIA A-12 pilot was so busy during his flight that he barely had time to look out the window. We heard one fly over us over Lake Tahoe, sonic boom and all. Read it in the paper then next day.."What was that boom?"

6 engines would be the XB-70 Valkyrie, possibly the 2nd most bad *** plane of all time.