Archive for March, 2011
Picture of a Graupner 42mm spinner. These are pretty nice quality spinners. They use machined steel collet with a nice retaining washer and steel nut. The collet is threaded though the center for a small bolt to retain the plastic spinner (2mm metric bolt I beleive). This one is for a folding prop setup, but the yolks can be swapped out, or removed and the plastic spinner cone shaped to fit the hub/root of a fixed prop.