13x4.5MR Electric Multirotor Propeller - APC AP13045MR  [AP13045MR]

Multirotor Propeller 13x4.5MR Overview

The APC AP13045MR propeller is produced for electric multirotor RC platforms and carries the 13x4.5MR designation that defines its diameter and pitch profile. That information helps when selecting a blade to match motor and ESC performance on standard multirotor frames. Below is guidance on fitting, checks to perform, and how blade choice affects flight dynamics.

Compatibility notes: the MR designation signals a multirotor profile consistent across APC's multirotor series. Always confirm the rotation direction and verify the mounting hardware secures the prop without movement. If hub size is uncertain, compare the blade to existing props or the motor adapter rather than attempting to force a fit.

Fitment checklist: visually inspect for damage, install the prop in the correct rotation, hand tighten fastenings, and conduct a cautious low throttle spin to verify clearance and detect vibration. Remove and inspect if vibration is felt; replace blades that show cracks or warping. Routine checks reduce undue load on motors and ESCs.

Flight tuning: a 13x4.5 blade typically balances lift against efficiency; swapping to different diameters or pitches will change thrust and handling. Use blade swaps as part of methodical tuning and test changes safely at low throttle settings.