Aviation History and Trivia :
Yes, it is. It was one of the prototypes fielded by Republic Aircraft. The other prototype was the XP-72, which was the Pratt and Whitney R-4360 powered P-47. It flew at 454 mph, so this one wasn't developed. It looks the right proportions to make a good flying RC model, though. It certainly would be something you don't see at the flying field every day. The tail looks like it's from a P-47, though.