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Meet the Grizzly
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.
Shockwave
There's a new anti-icing option for high-end Experimental/Amateur-Builts. Its called Therm-X. By Jack Cowell.
Air Power
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.
The Home Machinist
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.
To Launch a Light Sport
This month builder Bob Fritz searches for a better alternative to last-century circuit technology for his panel and finds it in a Polyfuse.
Build Your Skills: Fabric
Everyone could use a little sunscreen, and the fabric on a fabric-covered aircraft is no exception. This months installment, the last in the series, discusses pre-paint protection to minimize sun damage. By Ron Alexander.
Wind Tunnel
Aerodynamics Engineer Barnaby Wainfan dissects one of the most common and possibly least understood flight maneuvers: turns.
Grinvalds Orion
Jean Grinvalds’ plansbuilt four-seat pusher design was ahead of its time, predating the Bede BD-5, VariEze, Prescott Pusher and Cirrus VK-30. By Geoff Jones.
What’s New
Among the new products this month are personalized wheel chocks, a new online panel planner from Aircraft Spruce, a flexible TIG welding kit, and Britta Imports RV faring and dimmers.
25th Anniversary: Loran and GPS take over
Todays GPS technology has largely supplanted loran as a navigational aid in Experimental aircraft, and thats not a bad thing. By Marc Cook.
In Case You Missed It
Hatz Classic: A Homebuilt Waco
First-time builder Ron Sieck’s Hatz Classic biplane comes charmingly close to perfection.
Free Flight
Perfection is unattainable for most builders, yet it is what many strive for. Paul Dye posits that sometimes “good enough” may be just what you need to finally get out of the shop and into flying.
Wind Tunnel
Columnist Barnaby Wainfan continues his flight-testing discussion by taking up the topic of longitudinal stability. By identifying the origin of the problem, whether it be a control-system issue, a too-small static margin, or a combination of the two, the flight tests he recommends will help to isolate the issue.
