Its been four years since we reviewed the Arion Lightning, and things have changed-for the better. Marc Cook had a chance to fly the old and the new, and he details the differences.
Ground effect, or changes in airflow when flying a wingspan distance above the ground, affects longitudinal stability, elevator effectiveness and possibly even your airspeed indicator. By Ed Kolano.
How do you know when the sum of purchased parts exceeds the 51% rule? Does the data plate have to match the registration? DAR Mel Asberry answers these questions and more.