Dan Kerr

With the endorsement of five major EFIS manufacturers, Vertical Powers new all-in-one-box VP-X controller is almost certainly assured to be a success. By Editor-in-Chief Marc Cook.

Doug Rozendaal brings his considerable experience to a discussion of flight handling characteristics and his favorite aircraft. Among the factors designers consider are stability, control response, feel, personal preferences, FAA requirements, stick force, center of gravity, center of pressure, and the flight envelope. Every design is a compromise.

Builders share their successes.

Certain situations and configurations just call out for a ducted-fan installation. Barnaby Wainfan explains the benefits and drawbacks.