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

APC PROPELLER 9x4.7SFP ELECTRIC SLOW FLYER REVERSE/PUSHER
Price:
NZD$6.52
Brand:
APC
Model:
AP0947SFP
Condition:
Brand New
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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.
Measure the prop bore against your spinner or adapter, dry-fit the assembly to check concentricity, and ensure the prop boss sits flush on the shaft before final tightening.
Use a static prop balancer and remove material from the heavy blade or add small tape weights to the light blade until the assembly remains level at rest.
Allow sufficient gap from the fuselage and tail to avoid aerodynamic interference; a few millimetres extra clearance helps prevent strikes during flex or landing.

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