I'd put money on it that it's a TR-260, might be a J & K Products model. With the long laser 200 like wings and the profile of that fuse, it's almost a dead give away (a lot of folks have never seen one). I have plans for a .60 size one and it looks just like yours as far as the shapes and dimensions are concerned. This aircraft was competing with laser 200's and Cap 21's in the 80's. Lanier R/C sells an ARF of the TR-260, but it does not look much like one if you ask me, it's gotta be fun scale or something. I can snap a pic of the plans if you need "proof" of the design, there's a good 3-view in the corner that shows how long the wings are compared to the fuselage length.