It sure looks like the XP-40 except for a couple of glaring differences. The XP-40 had rotating retracts and rounded wingtips. Your 3 View has the opposite. It is simular to the very early BF109(A or X) model that was a prototype. Again, the wingtips and retracts are wrong, as well as the canopy. I looked through my books, and did several searches on the web. I am stumped. If it were not for the wingtips and retracts I would swear it was a XP-40 though. Where did you find the 3 view?