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    Re: Circumnavigation
    From: Mark F
    Date: 2002 Jun 27, 23:08 EDT
    In a message dated 06/27/2002 18:40:31 Eastern Daylight Time, wguinon{at}YAHOO.COM writes:


    I see Steve Fosset is trying for another solo baloon circumnavigation but it
    doesn't appear that he will cross the equator. What is the definition here?
    Clearly just a short stroll around the pole wouldn't answer.


    Ballooning counts a "circumnavigation" a little bit differently.

    the official rules are (bottom 2/3rds of the page):
        http://www.fai.org/ballooning/rtw2-98.asp

    Fossett's web site summarizing this as:
        http://www.spiritoffreedom.com/faq.html
    Q: What constitutes "around the world"; The Earth is 25,000 miles around at the Equator, but Fossett is staying well south and probably won't travel that far. Will his flight still qualify?
    A:
    Yes. As established by the Fédération Aéronautique Internationale - the International governing body of aeronautics - the rules say a pilot must set a course of waypoints within a band of the Earth that stays at least 30 degrees latitude south of the North Pole or 30 degrees north of the South Pole. The lines joining those waypoints (on a "great circle" projection) must stay outside those polar caps, although parts of the actual flight can drift inside them.

    mark



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