and blade strike issues, as well as helps to dampen rough landings. These replace the little rubber foot with a solidly mounted, curved “spring” made from RPM's engineering grade, ultra-lightweight nylons. The ...

propellers are manufactured using a pultrusion process which allows for a higher fiber (60%) to resin (nylon binder) density. This provides substantially higher strength and stiffness than glass-filled nylon. The additional stiffness ...