Jack Cowel

You like to think that once you're finished building, those deliriously long cross-country flights you've been craving are near at hand. Enter the DAR, who may or may not agree with that premise. Columnist Amy Laboda and her husband were just such eager beavers, but they soon learned (somewhat reluctantly) that there's value in listening to the voice of experience.

Jim Katz builds a homemade engine dehumidifier.

By William Rynone, Ph.D., P.E.

This month well go through the step-by-step vacuum-bagging process for an aileron trimtab part to see how to deal with extreme contours.