Navigation expert Langley R. Muir, Ph.D.s in-depth study of the SPOT Personal Tracker reveals its capabilities…and what you need to know to use it most effectively.
While there have been many attempts by homebuilders to make their pitot-static systems better than the rest, the tried and true methods remain sound. By Stein Bruch.
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.