Description

The Propeller Protractor a full-circle, plastic protractor used to measure the radial angles on a propeller spinner from a predetermined reference point. The angles provided by the balancing equipment, serve as a mounting location of weights in the balancing procedure. The protractor is flexible, weather resistant and when bent (without being broken) can easily be straightened by placing it on a flat surface and slowly heating it with a heat gun or hair dryer. Protractor measures 10.5″ in diameter.