APC AP1504E Propeller 15x4E Electric RC Prop  [AP1504E]

APC AP1504E electric propeller

This APC AP1504E propeller is an RC-scale replacement part designed for electric-powered model aircraft. The 15x4E designation identifies the diameter and pitch used by hobbyists when matching props to a given motor and electronic setup. Use this propeller as a straightforward spares item for routine maintenance, replacement after damage, or when experimenting with different pitch/diameter combinations during tuning.

Compatibility is general: the propeller is intended for electric RC models where a 15-inch diameter and 4-inch pitch suit the motor and ESC pairing. Do not assume fitment to a specific airframe without checking hub size and motor shaft dimensions. Confirm the prop's mounting hole and shaft diameter match your model before installation.

Installation notes: fit the propeller with the correct thrust washer and nut or prop adapter for your motor shaft, and tighten to the manufacturer's torque recommendation for your model's hardware. After mounting, perform a static spin test while the aircraft is restrained to check for clearance, balance, and any unusual vibration. Re-balance the propeller if vibration is detected; small weights or prop balancers are standard tools used by hobbyists for this task.

Tuning role: changing to a 15x4E can alter cruise rpm and throttle response compared with other sizes; expect modest changes to climb and cruise behavior. When swapping props, monitor motor temperature and ESC load during the first flights, and adjust gear ratio or battery selection only if necessary to keep components within safe operating ranges.