APC AP1285F 12x8.5F Electric Folding Propeller Blades  [AP1285F]

Electric folding propeller blades

This AP1285F product from APC is an RC-scale folding propeller set intended for electric-powered models and gliders that accept 12x8.5 props. The design focuses on reducing drag when the motor is idling and restoring thrust when the motor spins, which assists in glide performance and efficient cruising for electric sailplanes and sport aircraft.

Installation notes: fit the blade pair to a compatible folding hub or spinner system used on electric models, ensuring the hub seating and shaft adapter match the prop bore and motor shaft. Check blade direction and secure locking mechanism before each run. Balance the assembly on a prop balancer to reduce vibration transmitted to the motor and airframe.

Tuning and role: blade pitch and diameter influence climb and cruise characteristics; the 12x8.5 designation offers a compromise between thrust and efficiency on moderate-power setups. Folding blades help cut drag during unpowered flight phases, so they are commonly used on self-launching gliders and electric sport planes where reduced drag on glide stretches is useful.