http://www.10paperairplanes.com/how-to-make-paper-airplanes/07-the-ring.html I am not an expert at this- just a high school student, so please explain this in fairly simple terms. Thank-you very much in advance!
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2$\begingroup$ Possible duplicate of How does a ring paper airplane fly for a long distance? $\endgroup$– foootMay 5, 2018 at 2:55
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2$\begingroup$ That question explains how it flies, but not its relation to size, so it is definitely not a duplicate. $\endgroup$– Jan HudecMay 5, 2018 at 6:41
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$\begingroup$ Related: aviation.stackexchange.com/questions/50597/… $\endgroup$– AEhere supports MonicaMay 5, 2018 at 9:38
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1$\begingroup$ It would be helpful if you can include a picture of what a "circular paper airplane" is in the question instead of linking to a website. $\endgroup$– kevinMay 5, 2018 at 11:47
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The larger glider flies with a larger Reynolds number, so friction drag will be lower relative to lift.
Using paper of the same grammage (weight per area) would result in the same wing loading and the same flight speed, and the Reynolds number will grow linearly with glider size. If you look up in the linked answer how friction drag changes with Reynolds number, you will see that friction drag drops with increasing Reynolds numbers.
answered May 5, 2018 at 19:30