Builder Spotlight

Understanding your engine’s thermostatic oil-control valve.

Before the eXenos, Gabriel DeVault’s first electric aircraft was the eGull.

Sonex Designer John Monnett returns to the motorglider scene with the two-place Xenos.

Join Phil Mandel for a walkaround description and a brief flight in his Thorp T-18 homebuilt, one of the most affordable high-performance homebuilts on...

Aircraft Tool Supply made some seemingly small but useful updates to this magneto synchronizer. 

Calibration and hardware installation errors are common sources of trouble, so follow the install manuals to the letter.

Ryley, Keegan and River Karl provide a behind-the-scenes view of the DarkAero 1.

For 35 years, the “Sky Jeep” has soldiered on.

Timber Tiger Aircraft’s ST-L brings modern technology to a classic design.

Retrofitting polyurethane spacers to the main gear of a Zenith STOL CH 701.