Tosh McCaber Posted December 1, 2020 Share Posted December 1, 2020 I have recently gone over to electric, after many years glow etc. I still have a large number of (Top Flite etc) wooden and nylon props, which I used with my IC engines. I had hoped to be able to use them with my electric motors, but one of my club members has told me. Will I be able to use them?? Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted December 1, 2020 Share Posted December 1, 2020 Simply yes IC props have to put up with a lot more vibration and forces so normally come out heavier and more expensive. So if you already have a ic prop then use it. If you are doing a lot of electric prop hanging you may notice the additional inertia of the higher mass IC prop. The only limitation I can think of is max rpm, but you would have to have a very high KV motor and cell count to get close. The following are suggested RPM limits for APC propellers: Glow Engine (includes Sport and Pattern Propellers) and Speed 400 Electric Propellers Maximum RPM=190,000/prop diameter (inches) (For example, a 10x6 glow engine prop should be limited to 19,000 RPM) Thin Electric (E) Propellers and Polycarbonate (Durable) FPV Propellers Maximum RPM=150,000/prop diameter (inches) Folding Electric (F) Propellers Maximum RPM=120,000/prop diameter (inches) Multi-Rotor (MR) Propellers Maximum RPM=105,000/prop diameter (inches) Slow Flyer (SF) Propellers Maximum RPM=65,000/prop diameter (inches) Racing Propellers (including Carbon) 8.75 N, W and 8.8 Series 40 Pylon Props Sport Propellers (for IC Engines) on Electric Motors Maximum RPM=225,000/prop diameter (inches) Racing Propellers (including Carbon) on Electric Motors 8.75 N,W and 8.8 Series 40 Pylon Props on Electric Motors Maximum RPM=270,000/prop diameter (inches) PS APC web site quote the max RPM for IC and electric props so you can check there if you wish Edited By Chris Walby on 01/12/2020 14:54:58 Edited By Chris Walby on 01/12/2020 14:55:57 Quote Link to comment Share on other sites More sharing options...
Nigel R Posted December 1, 2020 Share Posted December 1, 2020 "Will I be able to use them??" Yes Only minor annoyance is liable to be the hole in IC props is often an imperial size (1/4 or 5/16 UNF) and not metric which most electric prop drivers seem to use... but a taper reamer will sort that. Personally, I have a few of the old Graupner grey props in use on my electrics. They work perfectly well. Quote Link to comment Share on other sites More sharing options...
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