APC AP1285F 12x8.5F Folding Prop Set for Electric Aircraft  [AP1285F]

Propeller set for electric sailplanes

The APC AP1285F is a folding propeller pair intended for electric RC gliders and sport planes accepting 12x8.5 props. The folding action reduces drag during glide and restores thrust once the motor spins, helping extend glide range and improve cruise efficiency.

Installation notes: attach the blades to a compatible folding hub or spinner assembly, making sure hub seating and any shaft adapter match the prop bore and motor shaft. Confirm blade orientation and locking engagement before flight. Use a prop balancer to ensure the set is balanced and to limit vibration to the powertrain and structure.

Tuning and role: pitch and diameter affect climb and cruise response; the 12x8.5 sizing gives a compromise of thrust and economy for medium-power setups. Folding props are commonly fitted to self-launching gliders and electric sport models to cut drag during unpowered segments.