RPM Limits

The following are suggested RPM limits for APC propellers:

1. Glow Engine (includes Sport and Pattern Propellers) and Speed 400 Electric (E) Propellers
   Maximum RPM=190,000/prop diameter (inches)
   (For example, a 10x6 glow engine prop should be limited to 19,000 RPM)
2. Thin Electric (E) Propellers and Polycarbonate (Durable) FPV Propellers
   Maximum RPM=150,000/prop diameter (inches)
3. Folding Electric (F) Propellers
   Maximum RPM=120,000/prop diameter (inches)
4. Multi-Rotor (MR) Propellers and Multi-Rotor Folding (MRF) Propellers
   Maximum RPM=105,000/prop diameter (inches)
5. Slow Flyer (SF) Propellers
   Maximum RPM=65,000/prop diameter (inches)
6. Racing Propellers (including Carbon) and Electric Carbon (EC) Propellers
   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)
7. 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)