by Phugoid » Mon Aug 23, 2010 2:21 pm
Easy. Balance the model with the clay stuck on the outside. Weigh this clay then buy some fishing shot, weigh out the same amount less a little bit to account for the glue) and roll them in some epoxy and pop them through the hole where the prop bush goes, then stand the model almost on its nose such that it gathers in the bottom "corner" of the nose moudling. I do this but with some bits of scrap roofing lead cut up into little chunks, which you could also use, but I thought it might be easier to get the shot......
Best to err on the side of caution and keep trying as it is easy to pop another piece in after flight trials, more difficult to get it out!
Andrew