RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Mike Gaishin has been optimizing his process for making props. Here are some pictures of the latest props that he's made. These props have the same finish, and are as stiff and strong as the props we have been making at 50g. Mike thinks that he can keep the average weight at about 40g, +/- a few grams.
Mike is able to preserve the strength and stiffness through careful optimization of the internal air pressure during molding, the mold temperature, the carbon fiber to resin ratio, and the ratio of cloth to tow.
For now, we will continue to make props at 50g, but we hope to start bringing the weight down in the near future.
Brenner ...