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  1. #1

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    Qualifying planes

    Would my Super Skybolt arf or my Seagull Extra 260 (63" wingspan) qualify to fly in IMAC sportsman or above?

  2. #2

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    RE: Qualifying planes

    skybolt, no. extra 260, yes.

  3. #3

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    RE: Qualifying planes

    If the Super Skybolt is within 10% of scale, it'd be legal (2nd one down): http://www.execulink.com/~gca/sub/aircraft.htm

    Same deal for the 260 of course, although I've never seen or heard of the scale deviation being checked or protested at a contest.

    You posted the wingspan... there is no rule in IMAC regarding the size of the aircraft (although it's a common misconception).

    Hope this helps,
    Baron Johnson

  4. #4

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    RE: Qualifying planes

    I posted the wingspan to show which extra it was . So by 10%, I assume if my model's wingspan is 10% or more than the size of the full scale it qualifies?

  5. #5

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    RE: Qualifying planes

    ORIGINAL: trixer
    So by 10%, I assume if my model's wingspan is 10% or more than the size of the full scale it qualifies?

    No... the wingspan determines the scale of the model, say 27%. Now once the scale is set, all other dimensions such as length, height, stab span, wing chord, etc must also be 27% of the full scale, +/-10% deviation. So, say the length should be 54" to be perfectly scale, the length can vary plus/minus 5.4" (10% of 54" )... so the length can be anywhere from 48.6" to 59.4" and still be "within 10% of scale".

    That being said though, I've never seen that checked or enforced except at the TOC.

  6. #6

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    RE: Qualifying planes

    Okay, so my skybolt IS legal. The full scale steen skybolt has an upper wingspan of 24'. The model is 57". The model would only need roughly 2.4' or 28" to be 10% scale. So assuming all the other dimensions are with 10% of the wingspan scale (roughly 1/5 scale) it would be legal.

    Thank you very much!

  7. #7

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    RE: Qualifying planes


    ORIGINAL: trixer

    Would my Super Skybolt arf or my Seagull Extra 260 (63" wingspan) qualify to fly in IMAC sportsman or above?

    Both legal and can fly in any imac class.

    Albert
    Carden Aircraft
    Team JR


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