Builder Spotlight

How do you know when the sum of purchased parts exceeds the 51% rule? Does the data plate have to match the registration? DAR Mel Asberry answers these questions and more.

Could a plane as large, expensive and complicated as the Lancair Evolution be completed by an experienced homebuilder? We have the answer to that intriguing question.

Out in the California desert, innovation in homebuilding is the rule, rather than the exception. By Marc Cook.

Author Dave Prizio describes construction of the firewall itself, including the penetrations and the tools required.

With all of the ways to get GPS information into the cockpit, a handheld unit remains a viable option. By Stein Bruch.

There's no substitute for real-world testing--;something homebuilders should keep in mind when moving from the theoretical to the actual application.

Builders share their successes.

What to do when you've stripped a spark plug hole or other threaded receptacle in your homebuilt (once the cursing has stopped)? We have ways...

Does an A&P have to sign off on an ELT inspection? And can a Sport Pilot fly a Cessna 172?

Electronic ignitions can offer benefits over the standard magnetos, including lower maintenance and better fuel economy.