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Old Nov 26, 2012, 03:23 PM
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Freelance selfie photographer
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Thousand Oaks, CA
Joined Mar 2004
2,761 Posts
Just because some kid slaps together a report for school does not mean that his theories, methods, or conclusions have any merit. Not only did he use a Master Airscrew prop which is little more than a twisted bar of plastic with no aerodynamic merit to begin with, but some (all?) of the things he tried to test were so ridiculously arbitrary that I fear for his safety. All he did was glue a bunch of random trash randomly all over the prop and test it. There was no science, no method, and thus no meaningful result. Any apparent benefits from the test configurations can be assumed to be simple measurement errors.

This is not to say that notches or teeth or scraps of sandpaper, etc. don't have potential. Just that you should ignore any of the methods or conclusions in that paper.
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