FPV Quadcopter Propeller 5.5x4.5E APC AP05545E-B4 Set of 4 (2 CW, 2 CCW)  [AP05545E-B4]

FPV propellers 5.5x4.5E — matched 2CW/2CCW set

The APC AP05545E-B4 set is an RC propeller kit made for FPV-style quads, shipped with two standard-rotation and two reverse-rotation pcs to match common four-motor layouts that take 5.5x4.5E blades.

These props are supplied as replacements and tuning spares rather than a guaranteed performance increase; install them only where 5.5x4.5E blades fit your motor shaft and prop mounting hardware. Keep the rotation-paired blades together during installation to preserve torque balance and predictable yaw response.

Installation notes: ensure each prop is placed on the correct motor rotation, tighten fasteners to the adapter and frame recommendations, and check for runout and balance. Replace any prop with visible damage, delamination, or vibration issues instead of attempting temporary repairs.

Tuning role: switching matched standard and reverse blades is part of fine-tuning thrust and handling on FPV builds; change one variable at a time and assess throttle response and efficiency after each swap.