"Here's what I found on the bureau number:
144217/144218 North American YT2J-1 Buckeye Later redesignated YT-2A
So this airplane started life as the second prototype YT2J-1 which means it was originally built with a single engine. [note to Stargazer] It wasn't uncommon for airplane companies to hack up prototypes and mockups of earlier variants to make later ones.""The fact that the canopy isn't finished and doesn't have plexiglas tells me this was probably that prototype that Rockwell was using to mock up a four seat NFO trainer because the cockpit layout is very much like the EA-6B's. The pic would have been taken in 1973-1974 which might have coincided with the EA-6B competition. The advanced design bullpen was upstairs and about 100 yards from where the pic was taken. Too bad the wall art isn't readable because, from what little I can see, it answers your questions.]So would the wall art around the XFV-12As. I vaguely remember walking through this area to look at the XFV-12A mockups and remember seeing the McD parts."