•  I

  • 250, 550, and 650 refer to the distance, in millimeters, between the vertical shafts of the farthest opposing motors on a multi-rotor SUAV, and thus size. Greater the distance usually corresponds to heavier machine requiring a higher amperage ESC.

  • that is non sense ESC are rated for AMP draw as it relates to motor KV & Prop size . 550/650 craft AMP draw depends on motor and prop size !

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