APC AP16513W Wide 16.5x13W Propeller Replacement for RC Aircraft  [AP16513W]

Broad blade propeller for trim and thrust

The APC AP16513W is a 16.5x13W wide-blade propeller offered as a spare for scale RC applications and noted with the 120 pattern in the descriptor. The larger blade area shifts the loading and airflow compared with narrow blades, which can help when tuning throttle response and climb behaviour on electric models. The following covers basic fitment advice, setup checks, and how the blade can affect trimming and in-flight balance.

Compatibility is general across RC electric aircraft and park-style models that accept the 16.5x13W mounting pattern; check hub diameter and spinner clearance before committing to fit. Installation follows standard procedures: inspect hub and shaft for signs of wear, ensure the prop seats evenly on the motor or adapter, and fasten using the correct nut and washer arrangement that your model requires. Confirm rotation direction printed on the prop matches the motor.

Proper balancing and trimming are essential for consistent results with wide blades. Perform a static balance prior to first flights, then run a vibration check at low throttle while on the ground. If vibration remains, re-check seating, spinner alignment, and hardware; use incremental trim corrections rather than altering the prop. The wider profile can increase thrust in the low-to-mid throttle range, so adjust throttle curves and watch motor temperature on initial sorties.

When evaluating multiple props, document RPM and flight behaviour instead of relying on impressions; a systematic swap and test routine generates repeatable data for tuning. Incorporate the AP16513W into an iterative setup process to optimise climb, cruise economy, and handling balance for your chosen model and power system.