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

Reverse/pusher slow-flyer propeller

This APC AP0947SFP propeller is an RC-scale accessory made for electric slow-flyer airframes that use a reverse or pusher mounting. The model marking includes the blade diameter and pitch, so match the 9x4.7 sizing to your airframe and motor setup before fitting.

Practical notes for hobbyists:

• Compatibility: Fit where the aircraft calls for a 9x4.7 prop in a reverse or pusher layout; check spinner bore and hub fit with your shaft adapter prior to final assembly.
• Pre-install checks: Inspect each blade for mould marks or damage, ensure the mounting hole aligns with the hub, and perform a static balance to minimise vibration at low RPM.
• Installation tips: Orient the face correctly for pusher use, tighten retaining hardware evenly to the recommended seat, and re-check balance after installation.
• Tuning role: On slow-flyers the 9x4.7 affects static thrust and low-end efficiency; adjust motor timing and ESC settings if needed to smooth low-RPM response.
• Safety: Always keep fingers clear of the prop when powering up, and bench-test at low throttle to verify secure fitment and acceptable vibration.