APC AP305040E-B4 PROPELLER 5x4E 3-BLADE FPV RACING BUNDLE (2 STANDARD & 2 REVERSE ROTATION)  [AP305040E-B4]

5x4E 3-Blade FPV Propeller Pack

This APC AP305040E-B4 bundle contains 3-blade FPV propellers sold as a mixed rotation pack, providing two standard and two reverse rotation props for multirotor use. The set is intended as replacement spares or hop-ups for FPV racers and freestyle quads that use three-blade propellers.

Design and role: the 3-blade layout prioritizes mid-to-high thrust response and tighter control over two-blade alternatives, helping tune throttle feel and handling in race or freestyle setups. Use the model ID 5x4E to match your props when ordering replacements or comparing options.

Installation notes: match prop rotation to motor direction and thread type, secure with the correct nut or adapter, and ensure no contact with frame or camera mounts. Before each flight check props for chips or deformation, and confirm they are tightened to recommended torque for your motor shaft and hub system.

Tuning and maintenance: try both standard and reverse sets during setup to balance yaw behavior and motor load across the quad. Balance each prop on a prop balancer and replace any blade with visible damage to avoid vibration that can affect flight controllers, ESCs, and onboard cameras.