The APC AP09045EP 9x4.5EP propeller is a scale replacement blade intended specifically for electric pusher or reverse-thrust layouts. Sold as a single prop, it is a practical spare or upgrade for small electric craft with rear- or aft-mounted motors.
Mounting notes: match the prop bore to your shaft adapter or collet before fitting, and use a hobby balancer to check for even weight distribution. Secure with the correct nut or collet and confirm the rotation direction aligns with the intended thrust, then perform a careful low-throttle static check to confirm clearance and vibration are acceptable.
Performance and care: installation of this prop alters thrust characteristics, cruise RPM and acoustic output without swapping motor hardware. Regularly inspect for damage, rebalance after any repair, and replace a compromised blade to prevent extra load on motor bearings.
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