APC AP205135EPN Propeller 20.5x13.5EPN Electric Pattern Thin Hub  [AP205135EPN]

APC 20.5x13.5 Propeller Overview

This APC propeller is an RC-scale electric pattern propeller offered as a thin-hub option intended for electric pattern models. The 20.5x13.5 designation refers to diameter and pitch, and the thin hub form factor focuses on a compact mounting interface for common electric setups.

Use this propeller when you need a predictable aerodynamic response for pattern manoeuvres. Before flight, confirm spinner or adapter fit, ensure the hub seats fully on your motor shaft or collet, and follow the motor manufacturer's recommended tightening method to secure the propeller. Keep this part within the RC model domain and do not use it on full-scale vehicles.

Tuning notes: balance the propeller on a dedicated prop balancer, check for nicks or warps after any rough landings, and fine-tune pitch and motor timing on the bench to match desired throttle response. A thin hub can change spinner clearance and may require a thin backing washer or spacer for correct alignment.