Builder Spotlight

Tom Needham, with the help of his son Daniel and numerous friends, completes a Sportsman 2+2 and will use the plane's big hauling capacity and short-field performance to shuttle people and supplies between remote locations in Africa.

Repeat offender Dave Prizio goes for his third strike, ultimately deciding to build an Texas Sport Cub.

Dave Martin and EAA Chapter 292 take on the latest offering from Vans Aircraft: the RV-12 LSA kit.

Builders share their successes.

Math works! Kevin Horton shows you how to use GPS data to calculate true airspeed.

Everything old is new again. Paul Lamar looks at the turbo-compound engine, developed in the post-WW-II era. Thrown over for jet engines, it may yet hold promise today as we search for more energy efficient ways to get the most out of increasingly expensive fuel.

Builders share their successes.

Anyone can make wiring look good. The bonus is that your installations maintenance and future upgrades will be much easier. Stein Bruch shows you how.

Amy Laboda takes a look at the life of inventor Lawrence Sperry, whose childhood fascination with a spinning top led to his development of critical flight control systems...and even the aircraft seat belt.

More power! Bob Fritz takes a close look at what makes batteries go, what kind is best for your plane, and how to get the most out of your battery.