APC AP08041SF 8x4.1SF Indoor/Slow-Fly Composite Propeller  [AP08041SF]

Blade Characteristics

The APC AP08041SF 8x4.1SF propeller is an RC replacement blade made for electric slow-flyer and indoor 3D aerobatic models. The blade profile is optimised to give predictable low-speed lift and smooth handling during tight manoeuvres.

Fitment is direct: mount to the existing prop hub and secure using the airframe or motor's standard fasteners. Confirm adapter and hub compatibility so the prop sits true and avoids imbalance.

In tuning terms, the lower pitch biases the thrust toward stronger static pull and better low-rpm throttle resolution, aiding hover and slow-pace control. When testing, observe motor RPM and vibration, and adjust prop seating or shims to eliminate any imbalance.

Handling and care: after any blade contact inspect for dents, cracks or permanent flex. Replace damaged props and keep contact surfaces clean to help retain balance and safe operation.