APC AP305150E-B4-BD 3-Blade FPV Prop Bundle — 2 Standard + 2 Reverse Rotation  [AP305150E-B4-BD]

Three-Blade FPV Prop Kit

This APC AP305150E-B4-BD bundle supplies three-blade propellers suitable for FPV racing multirotors, useful as spare parts or to fine-tune flight response. The mixed-rotation pack is intended to fit common race-frame setups that require matched clockwise and counterclockwise props.

The blades are labeled BD5.1x5E and are supplied as two standard rotation pieces and two reverse rotation pieces, allowing correct motor pairing without swapping props mid-flight. These are model-scale propellers for multirotor use and should be mounted only on compatible hobby motors and prop adapters.

Installation is simple: mount each prop to the motor shaft following your frame maker’s recommended order and thread direction, secure with the correct nut or collet, and verify the blade’s leading edge corresponds to the intended rotation. Always confirm rotation before powering up and use hobby-grade thread locker on fasteners if your frame or motor supplier recommends it.

For trimming and tuning, use the supplied standard/reverse pairs to evaluate yaw response and low-speed control without altering motor gearing. Balance each prop before use to reduce vibration and replace any blade with cracks or nicks to keep predictable handling.