no one around to second my suggestion
Just missed ya mate.
I think this is a one-off A-21J that was converted by Lockheed/Mississippi State University to a fixed jet arrangement.
Can't find LM's photo but the general layout looks like the Caproni and I have found mention of the
Lockheed/Mississippi conversion in a few sources which also mention the two under-wing fuel tanks.
Happy to confirm, but I don't know if it received a different designation?
