Builder Spotlight

Builders share their successes.

Since the beginning, homebuilders have gazed upon the engine lurking under the cowl of a certified light aircraft and thought, There has got to be a better way. Rick Lindstrom looks at several aeromotive engine conversions, from the practical to the semi-exotic.

Larry Simpsons first building experience was deepened by his engine choice: an Eggenfellner H6 Subaru conversion. His attention to detail and tailored modifications led to more of a hands-on experience than he expected-sometimes frustrating, expensive and fascinating. By Larry Simpson.

Much has changed since our last review of Experimental EFISes more than a year ago. It’s getting harder to differentiate among companies and their products as these systems mature and functionality becomes more similar. By Stein Bruch.

Builders share their successes.

AeroTek Aviations Beaver-size amphibious kit airplane, the Grizzly, showcases the company's 550-shaft-horsepower Pratt & Whitney PT6A engine conversion, which has also flown in the Murphy Moose. By Ed Wischmeyer.

There's a new anti-icing option for high-end Experimental/Amateur-Builts. Its called Therm-X. By Jack Cowell.

The art of porting cylinder heads, whether by hand or by CNC machine, is a valuable part of blueprinting detailed engine builds or overhauls, and surprisingly subtle changes can determine how efficiently the engine will breathe.

If you need to send a part out to be built by a professional shop, a good drawing, well identified, is essential. The KISS principle applies, and be sure you don't request closer tolerances or more exotic materials than you really need, or it will cost you.

This month builder Bob Fritz searches for a better alternative to last-century circuit technology for his panel and finds it in a Polyfuse.