Hello everyone,
this is my first post here, so please bear with me.

Your plane sure looks like a Graupner Ultra Stunter.(Designed by F.W. Biesterfeld). I built one in the sixties, which was powered by an O.S. Pet II, (horrible engine, almost impossible to start) and two years ago I built another one. My new one has a Webra Rekord 1.5 cc Diesel and it flies nicely. I was surprised how small the model is. That is why I enlarged the plans by 50% and built the "Ultra Stunter 150" from scratch and put an Evolution 36 in it. Flies great on 58 ft lines!

I hope you will enjoy yours!

Regards,

Werner