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Flat size Arc

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  • diego@epitec.com
    Hoi, Does anybody know how the flat area of a Arc is calculated? The specs say this for the 460: Area= 4,6 m2 wingspan = 460 cm Maximum Chord = 150 cm Wingtip
    Message 1 of 1 , May 1, 2001
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      Hoi,

      Does anybody know how the flat area of a Arc is calculated?

      The specs say this for the 460:
      Area= 4,6 m2
      wingspan = 460 cm
      Maximum Chord = 150 cm
      Wingtip Chord = 82 cm

      Say that the LE is straight and the the TE goes in a straight line
      form the tip to the center.
      ____________
      | |
      | |
      \ /
      \ /
      V

      Then the flat area would be around: 0.82 * 4.6 + (1.50-0.82)*4.6/2 =
      5.3 m2.

      Are the given chord wrong, the area or am i missing something?

      Doei Diego
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