The APC AP1613 is a 16x13 propeller intended as a spare for electric-powered model aircraft and scale projects, offered to modelers needing a higher-pitch option for more speed or thrust. It is sold as a single propeller for hobby-scale applications.
Mounting is conventional: the 16x13 code identifies diameter and pitch, and the prop is intended to fit common hobby hubs when used with the correct shaft adapter and securing nut or prop retainer. Always check spinner depth and hub spacing to avoid contact with the airframe.
As an upgrade element the 16x13 changes thrust and RPM characteristics; expect increased pitch-driven speed and load with a corresponding rise in current draw, so match the prop to an ESC and motor that can cope. Balance before flight and inspect blades after any strikes or hard landings.
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