This APC AP05046E-B4 kit supplies four 5x4.6E propellers designed for FPV multirotor use, with a matched pair of standard rotation blades and a matched pair of reverse rotation blades to fit typical quad arrangements. The 5x4.6E designation helps set expectations for pitch and control response when tuning.
Fitment guidance: verify each blade's rotation marking and orient the leading edge in the intended airflow direction. Use appropriate mounting hardware and confirm the hub bore fits your motor shaft before the first flight to ensure safe operation.
Tuning guidance: these 5x4.6E blades influence acceleration and handling more than peak speed; swap blades progressively and monitor ESC and motor temperatures when changing prop profiles.
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