Phillips? Flat head? Double blade? Bob Fritz clears up questions you didn't even know you had about screwdrivers. When you're building a plane, the right tool for the right job (and right space) really does matter.
Is an aircraft’s empty weight required on the data plate? Does the gross weight change when an LSA is converted from conventional landing gear to floats? Should engine maintenance be entered in the builder’s logbook? Does the Minimax still qualify as an ultralight?