Hi Guys. Sorry to butt in on this excellent thread but I have a SIG mini plane that I built in 1994 and only flew 2 - 3 times because I was relatively new to the game and only using an OS46 engine that flew her reasonable well. Anyway I have decided to get the model out of the loft and fit an OS70fs which I have laying around.

The only problem is I don't have a clue where the plans are and could do with a confirmation of the balance point. I understand it is just aft of the leading edge of the lower wing but could do with a measurement of how far "just aft" is (if it is there)

I'll pop a picture in later but the model has stored well except for the paint which has matured with a slight yellow tinge.

Hope someone can help.

Regards

JoLLy.