9x4.7 APC AP0947SFP Electric Slow-Flyer Propeller - Reverse/Pusher  [AP0947SFP]

Slow-flyer pusher/reverse prop overview

The APC AP0947SFP propeller is intended for RC electric slow-flyer craft that use a reverse or pusher configuration. Use the 9x4.7 size marker to verify compatibility with your spinner, hub, and motor shaft before final assembly.

Practical notes for hobbyists:

• Compatibility: Designed where the aircraft specification calls for a 9x4.7 reverse or pusher prop; double-check hub diameter and spinner clearance as part of fit verification.
• Pre-install checks: Look for surface defects, confirm mounting hole alignment, and balance the prop on a static balancer to reduce low-speed vibration.
• Installation tips: Fit the prop with the correct face direction for pusher mounting, secure fasteners evenly, and re-balance after the prop is tightened.
• Tuning role: A 9x4.7 tends to prioritise low-end thrust; pair with motor and ESC settings that support smooth low-RPM torque delivery for best slow-flight feel.
• Safety: Operate the motor at low throttle when checking fit and keep clear of rotating blades during tests.