stunthanger.com
General control line discussion => Open Forum => Topic started by: Ty Marcucci on February 13, 2010, 02:27:35 PM
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H^^
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Pattern distortion due to flying the surface of a sphere haqs been explained time and time again. It seems to grab editors as something truly inspirational, but it is simply a re-hash of the same stuff. I mean, I could write my own theory based on the geometry already presented. And I'm not even a judge!
Floyd
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even better use a transparent umbrella comes in handy for lots of stuff.....
B
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Some years ago, Charles Mackey had an article in MAN using a transparent hemisphere. Maybe Keith Trostle has done the same. One needs two viewpoints: the view of the pilot from the inside of the circle, and the view of the judge outside the circle on the upwind side. So a transparent hemisphere is needed.
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....The judges and the "pilot" do not see the pattern in this manner. They see it from INSIDE the dome, not the outside, thus the pattern shown is what a viewer on the opposite side of the pattern might see. A better way to show the pattern is to use the inside of a globe. They do exist, in clear plastic and are bigger than a bowling ball.......
or get a copy of Keith Renecle's pattern sim and you can see each maneuver from any position you want, in detail, right down to the 5 ft. corners. Amazing, and should be in every judge's toolbox.
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Click top center on the home page.
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If you want to be totally right, it isn't really a hemisphere. Because your shoulder is above the ground. From shoulder height and up, it is a hemisphere. But below shoulder height is is part of the rest of teh sphere. :)
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I mentioned this a while back...I was fooling around with my world globe, trying to figure out why square loops aren't square and why the top of the square is arced. The Lat/Lon grid on the globe made it immediately clear why. Take a look at a globe. It's not just for geography anymore!