APC AP05545E-B4 5.5x4.5E FPV Blade Set — 2 Standard + 2 Reverse  [AP05545E-B4]

5.5x4.5E FPV blade set for quads

This APC AP05545E-B4 pack provides RC-scale propellers intended for FPV applications, delivered as two clockwise and two counterclockwise blades to accommodate typical quad layouts that accept 5.5x4.5E props.

These blades are sold as replacement and tuning spares rather than as an outright performance upgrade; only use them where a 5.5x4.5E blade matches your motor shaft and prop mount. Keep rotation pairs together when fitting to a four-motor craft to help maintain proper torque distribution and yaw control.

Installation notes: place each prop in the correct rotation seat, tighten fasteners to the recommended torque for your prop adapter and frame, and inspect for runout before each flight. Do not attempt to fly props that show nicks, delamination, or detectable imbalance.

Tuning role: changing between matched standard and reverse rotation sets is a straightforward method to tune thrust curve and handling on FPV quads; adjust pitch or blade size in small steps and evaluate flight changes gradually.