APC AP08041SF 8x4.1SF Composite Propeller for Electric Slow Flyers  [AP08041SF]

Performance Summary

This APC AP08041SF 8x4.1SF propeller is an RC replacement blade designed for electric slow-flyer and indoor 3D aerobatic aircraft. The geometry emphasises steady low-speed thrust and a smooth throttle feel, prioritising control for slow passes and hovering rather than high-speed runs.

Installation is simple: fit the propeller to your existing hub and secure with the standard fastening hardware supplied with the airframe or motor assembly. Verify the hub type and prop adapter match before tightening to ensure correct centring and balance.

From a tuning perspective, the lower pitch moves the thrust band toward stronger static thrust and finer control at low rpm. During bench testing, monitor vibration and rpm with your motor and ESC combination; adjust prop seating or hub shims where needed to obtain a vibration-free setup.

Care and inspection: check blades for nicks or permanent flex after any impact, replace if damaged, and keep mounting surfaces clean to preserve balance and safe operation.