This APC AP13065EP unit is an RC-scale propeller aimed at electric pusher and reverse installations. The label 13x6.5EP indicates its diameter and pitch, and the EP tag signals its use for electric pusher-style orientations.
Installation guidance: secure the prop to the motor shaft while confirming rotation direction, torque hub fasteners to your motor or adapter guidance, and inspect blade orientation carefully when installing in pusher mode so the pitch aligns with thrust expectations.
Tuning role: fitting a 13x6.5EP changes the motor loading characteristics and the RPM band where the motor produces peak thrust. Carry out bench testing with a wattmeter to monitor current, and balance the propeller prior to flight to reduce vibration transmitted to servos, ESCs and the airframe.
Practical notes: check the hub fit, thread or collet dimensions against your motor, ensure prop wash and control surface clearance on pusher layouts, and do short low-power taxi or glide trials after the initial installation.
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