APC-E Fixed Blade Props

Description

Selling current stock of APC props at special prices until all gone! Those listed below are still available.
Note: I can still obtain APC to special order and will offer a special price, so book what you want with me and you will receive them eventually, but not overnight!

Electric motors require lighter props generally than glow motors; they do not need the flywheel effect of a heavy prop to sustain ingnition and can develop more revs with light blades. The growing popularity of sport, cabin, aerobatic and scale electric aircraft has created a demand for suitable fixed blade props. The most popular brand is APC.

I have given the size of the bore in each prop as this has been an issue with some fliers. The revs limit with APC-E props is 150,000 dived by the prop diameter in inches, eg. a 10″ prop can spin at up to 15,000 rpm.

APC provide a stepped hub. The hole in the front is nominally 6.5mm, but I have noticed that the size varies slightly, and even APC themselves say that this is not a precision hole. The rear side of the hub has a 9mm hole which is precison made, and this creates a step in the bore of the prop. A range of collets is supplied with each propeller to fit in this rear stepped hole to adjust the bore in a range of sizes right down to 3mm. So, you can either add the required collet, or bore out the hole to 9mm.