All these adapters are allow the prop to easily dislodge in an accident. They are held in place by O-Rings. These are not reccomended for high RPM applications. Essentially, if the expected top speed is over 40mph, you should consider using a Collet or Set Screw type adapter. Use your own judgement and good reason here. The best way to save props is to understand they make very poor landing gear. ;-)
Propeller Saver. PropSaver for 1.5mm shaft. Photo shows typical shaft saver mounted to generic prop. Prop is not included. Weight .83 grams plus O-ring. Weight .93g with included O-ring. SKU Number: RRCPS1.5
GWS Prop Saver Adapter. Four different applications-any GWS motor or geared drive shafts. Will fit shafts from 2mm to 4.0mm. One of each size. Hub held to threaded shafts with nuts, prop held to hub with rubber bands which allow prop to fly off upon contact with ground. Easy to reinstall often undamaged prop with rubber bands.
Special notes from Dave: You will probably put install these right at the base of the threads then cut the shaft. Although not a requirment,you'll probably want to shorten shaft with Dremel cut off wheel (USE SAFETY GLASSES!!!) so a short stub reaches into but not through prop for centerting yet allowing the prop to flip off at impact. Hubs have molded centerting boss presumably to match up nicely to most GWS brand props. Use your own judgement and set up to suit your use.
Himax Prop Saver Adaptor 3.2mm-1/8" Shaft. Prop is held to hub with rubber bands which allow prop to eject upon contact with ground. Easy to reinstall undamaged prop with rubber bands. SKU Number: MPIACC361
This unit has a blind hole for the motor shaft. The front of the adapter becomes the front of the shaft. A 1.4mm nub centers your prop. Made for props designed to press onto 1.5mm shafts. Perfect to get your GWS 3-2 or 3-3 prop mounted with a saver on your brushless motor. We suggest our small o-rings above for use with this saver. The included rubber bands are of poor quality and should be discarded. SKU Number: RRCPS15NUB