Apparatus, system and method employing arrow flight-data

  • US 8,733,168 B2
  • Filed: 01/11/2011
  • Issued: 05/27/2014
  • Est. Priority Date: 01/11/2010
  • Status: Active Grant
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First Claim
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1. A method of determining an instantaneous speed of an arrow shot from a bow having a bow string, the method comprising acts of:

  • determining a time-of-flight of the arrow, at least in part, by employing an apparatus included in the arrow to determine a moment in time when a start of a free-flight of the arrow occurs, the start of the free-flight occurring when a proximate end of the arrow reaches substantially a neutral position of the bow string;

    determining a distance between a location from which the arrow is loosed and a location of a target-face; and

    determining the instantaneous speed of the arrow by employing at least each of;

    a) the time-of-flight; and

    b) the distance.

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