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APC electric propellers are a workshop standard for electric-powered models, and this category spans a wide range of diameters and pitches along with the inserts that adapt them to different motor shafts. The E series is designed for the lighter loads and higher rpm typical of electric setups.
Sizes and Materials
Listings run from small props such as the 4.75 x 4.75 up through larger sizes like the 13 x 5.5, letting you match diameter and pitch to your motor and airframe. Several are molded composite, and options like the 4.75 x 4.75 carbon fiber prop and the 7 x 7E thin electric add stiffer choices for higher-rpm use. The 5 x 7.5 Speed 400 prop targets the popular Speed 400 power class.
Prop Inserts
APC standard E inserts and SAE inserts fit the prop hub to your motor shaft, so the same prop can serve different setups.
Browse the sizes and inserts above to fit your electric power system.
RPM LIMITS The following are suggested RPM limits for APC "E" Propellers:
Thin Electric (E) Propellers and Polycarbonate (Durable) FPV Propellers Maximum RPM=150,000/prop diameter (inches).
 "APC 24 x 12E Thin Electric")