Hatz CB-1 Classic

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It took 10 years for Hansueli and Samuel Gautschi to complete the ultimate do-it-yourself project, and the result is an absolute gem. By Ernst Bickmeier.

Restoring a Stored Homebuilt

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Expect the unexpected.

Becoming a Designated Airworthiness Representative (DAR)

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The long road to issuing airworthiness certificates.

Rapid Prototyping and Experimental Design

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3D-printed composite part molds. By Ken Krueger.

Ask the DAR

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Converting heavy ultralights to ELSA, ELSA maintenance requirements.

Wooden Hangar Floors

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Yes, its unusual, but for my hangar it makes perfect sense. By Steve Kessinger.

The Inverted Oil Dilemma

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Adding more equipment is never as easy as you think.

Homebuilt or Store-Bought?

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Raising the bar for RV-10 interiors to an entirely different level. By Bruce Eicher.

Rapid Prototyping and Experimental Design

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CNC mold blank fabrication, part 2.

Completions

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Builders share their successes.

In Case You Missed It

Found From Space

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A technology developed by ham radio operators, called automatic position reporting system (APRS), coupled with low-cost GPS receivers, a decent antenna and the World Wide Web, have made it possible to track light-aircraft flights without incurring access or subscription fees. Yes, you'll need to get a Technician license for radio operators, but thats a minor obstacle if this system is something you want or need to use.

Contributors

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Chuck Bodeen Chucks background is as an aerospace engineer and computer programmer. His love for...

EAA’s One Week Wonder

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From a Zenith standard kit to the flight line in a week—and you can help.

Editor’s Log

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Well, hello there!