Schuyler (Sky) Greenawalt is the primary maker behind School Street Design. The company evolved out of his personal interest in CAD/CAM, and his love of aircraft, large and small. Sky’s primary focus is on finding new and better ways of utilizing cost effective CAD/CAM technology to create high quality composite parts.
In June, Sky posted a blog about a project he had just delivered. He wrote (June 1, 2011):
I’ve been working on these wingtips for a few months now, just delivered them today. The customer is Minh Jet in Hollister, California. Minh had some aero engineers come up with some custom tips for the L-39 Albatross, which is what his shop primarily services. He found that they decreased the stick forces on the ailerons, increased the climb rate and made made it more efficient. Since his tips were hand shaped, he came to me to digitize his existing tips so that I could make production molds and parts.
Interested in double wing configuration? Suface modeling? T-Splines? Renshape and polyurethane tooling foam? Water jetted Plywood? Carbon fiber? If by some chance you have an L-39 and want a set… read Sky’s great blog post with his series of photos and details…