Matthew Dock

Two builders helped each other build RV-9As, each employing significantly different outlays of cash. The results are impressive in both cases, but for different reasons. They help us ponder the question as we build: What is something worth? By Marc Cook.

Cryogenic treatments are the newest thing at the Ly-Con engine spa.

For homebuilders, power is a top-of-mind issue, and engines are among their most important decisions. From the familiar Lycomings and Continentals to the options in radials, here’s what the traditional aircraft-engine market offers.

The engine of an airplane must produce enough power to meet the requirements of...