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.
Editor-in-Chief Marc Cook highlights an intriguing product that caught his eye at AirVenture Oshkosh 2007, and he reiterates the difficulty of bringing new engines to market.