Electric RC 11x4 Propeller APC AP1104 Spare Blade  [AP1104]

Installation guide for 11x4 electric propellers

This APC AP1104 propeller is supplied as an RC-scale replacement blade intended for electric model aircraft and trainer planes. The description concentrates on correct fitment and practical tuning, explaining how a standard 11x4 blade behaves in typical hobby setups where balancing and matching to motor and ESC parameters are important.

Fitting is normally simple across most spinner and hub arrangements: check spinner bore and prop adaptor dimensions, secure the prop with the appropriate nut or backplate, and follow the spinner hardware torque recommendations. For threaded shafts or collet adaptors, make sure the prop sits flush and centered before final tightening.

In tuning terms, the 11x4 marking denotes diameter and pitch, which influence thrust and RPM under load; this size is often chosen for a compromise between acceleration and cruise efficiency. Routine maintenance includes visual checks for nicks, static balancing on a prop balancer, and watching for any persistent vibration that could indicate misalignment or fitment issues.