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.
Last months installment in the Composites series detailed how to do vacuum-bagging of parts at home. This month author Bob Fritz discusses how to inexpensively build one critical component in that process: the vacuum pump.
Having earned a number of homebuilding trophies for his work constructing airplanes, Paul Muhle decides to share his experience with those who aim to win awards-or just look like they could.