I lived in Maryland until 1975, and attended a couple of airshows at NAS Patuxent River in the preceding years. At one show, there was an SR-71 in a hangar. My brothers and my dad and I were blown away, as there had been no announcement of its presence. There was an armed detail and the plane was roped off; pictures were not allowed. There were "cobra" markings on the aircraft. My father asked what they meant, and the guard denied that they meant anything.
Later, during the aerial portion of the show, what was apparently ANOTHER Blackbird made a single pass across the show area and then pulled away quickly and left the area. I say that it must have been another SR-71 because I don't remember seeing the hangared plane taxi or take off.
I can find no reference to this happening...a recent email to the Pax River Naval Air Museum Association came up empty, and no amount of googling seems to find a mention of it. A website that lists Blackbird diversions (
http://www.wvi.com/~sr71webmaster/triplog66_86.htm) naturally shows no diversions at all to any site in Maryland or Virginia but does show one to Andrews AFB in September, 1972 for display. Maybe it flew over to Pax and did a quick pass. But what about the one in the hangar???
Any idea of where I could find actual confirmation (besides the memory of the 11-year old me) that I really did see an SR-71 fly in Southern Maryland in 1972?