APC AP0474 4.75x4 Replacement Propeller for 1/2A Pylon and Combat Models — RC Spare Propeller  [AP0474]

4.75x4 replacement prop for 1/2A pylon and combat use

This APC AP0474 propeller serves as an RC-scale spare blade for 1/2A pylon and combat sport aircraft. It is molded from polycarbonate and intended for small sport flying where rapid prop swaps and fine trim changes are common. The text emphasizes correct fit, installation care, and the way a prop swap alters handling without asserting specific performance numbers.

Compatibility rests on hub bore and shaft diameter rather than any single airframe designation. Always verify the prop hub diameter against your prop adapter or motor shaft; many pilots use adapters to make propellers fit various shafts. Ensure there is sufficient clearance from the fuselage and control surfaces to prevent strikes during steep attitudes.

Installation guidance: align the blade pitch and rotation with the motor direction, hand-tighten the nut or collet, then apply the correct torque for your adapter. After mounting, static-balance the prop and confirm there is no rubbing at full control throw. Perform a low-throttle run-in to check for vibration and secure retention before going to full power.

Tuning notes: moving to a 4.75x4 blade alters thrust and responsiveness versus other sizes, so treat prop swaps as a tuning step—check balance, monitor motor load, and make incremental adjustments to power or prop choice to refine handling for pylon or combat styles. This description treats the item strictly as an RC accessory.