APC AP0945E PROPELLER 9x4.5E Electric Replacement Blade for RC Aircraft and Multirotors  [AP0945E]

APC 9x4.5E Blade Details

The APC AP0945E 9x4.5E propeller is manufactured as a replacement part for electric RC models. It is intended for use when you need an equivalent blade size to evaluate performance differences in thrust and rotational speed.

As a tuning-focused part, moving to a 9x4.5 profile changes thrust output, the motor load, and the audible RPM range. When installing the propeller, check hub fitment, ensure correct shaft seating, secure mounting hardware properly, and balance the prop on a balancer to minimise vibration transmitted to the airframe.

Fitting tips: seat the prop fully on the motor shaft or adapter, tighten the retaining nut or screw to the manufacturer's torque recommendations, and carry out a static spin check to identify any rubbing or abnormal vibration. For tuning comparisons, watch flight behaviour and motor temperature compared with the prior prop and adjust gearing or throttle endpoints as required.