APC AP11045MR 11x4.5MR Propeller for Electric Multirotors  [AP11045MR]

11x4.5 Multirotor Replacement Prop

This APC AP11045MR 11x4.5MR propeller is a direct replacement blade intended for hobby electric multirotor airframes that accept 11-inch class props. The 4.5-inch pitch and blade shape are design descriptors to help match rotor loading and flight feel during repairs and tuning.

The prop is molded from a plastic composite to balance impact resistance with affordability; always inspect blades for cracks, chips, or warping before each flight. Fit the prop with the correct hub orientation and secure fasteners for your motor shaft or adapter, confirming thread direction and recommended torque to avoid loosening.

Static balancing and fine trimming are important to reduce vibration. Use a blade balancer and correct heavy sides with small tape additions or careful trimming, then recheck balance after any adjustment or impact to protect flight controllers, ESCs and motors.

To isolate propeller effects when tuning, change props while keeping other variables constant and monitor thrust, control response and battery current. This prop works well for maintenance swaps, bench testing and tuning runs on multirotors suited to an 11x4.5 size.