Speed 400 Electric Propeller 4.75x4.75 Reverse/Pusher - APC AP04747EP  [AP04747EP]

Reverse/pusher EP propeller for small electrics

This APC AP04747EP propeller is an RC-scale replacement specified as 4.75x4.75 for EP electric use with Speed 400 motors. It is aimed at modelers who fit reverse or pusher props on small electric craft where matching prop dimensions and rotation to the motor matters.

The dimension label (4.75x4.75) denotes nominal diameter and pitch, data model tuners use to estimate thrust and motor load; use those values to compare prop choice against your Speed 400 motor and its RPM. Because this prop is described for reverse/pusher mounting, confirm rotation direction and hub securement on your motor shaft before final fitment.

Installation notes: verify shaft diameter and prop adapter compatibility, seat the prop squarely on the hub, and torque the retaining hardware to avoid slippage. After mounting, static-balance the blade and perform a low-throttle run to check for vibration or excessive motor draw. For tuning, adjust gear ratio, battery voltage and ESC setup to keep the Speed 400 motor within safe temperature and current limits.

Practical tuning role: swap this prop to trial different pitches or rotation orientations when optimising climb, cruise or static thrust on small electric models; expect measurable changes in acceleration and RPM as pitch or rotation change.