15x13 (120 Pattern) APC AP1513 RC Propeller Spare for Electric Aircraft  [AP1513]

Overview: 15x13 propeller characteristics

The APC AP1513 15x13 propeller is designed as a replacement blade for electric model aircraft that use the 15x13 hub pattern. The 120 pattern label indicates the hub-and-pitch arrangement rather than shaft diameter, so verify hub size and spinner clearance before fitting the propeller.

Fitting is simple: place the prop on the matching hub, secure with the correct nut or adapter, then carry out a static balance check. Reducing vibration at the prop helps protect the ESC, motor bearings, and servos from premature wear.

From a performance perspective, installing a 15x13 changes the balance between thrust and RPM. This affects motor load and current draw relative to other sizes, so watch motor and ESC temperatures on initial flights and alter gearing or throttle settings as needed.

Care and inspection: check for chips, cracks, or delamination after rough landings. If you trim or repair the blades, re-balance them and replace the prop if any structural problem is found to avoid stressing the hub or motor.