Page:Aerial Flight - Volume 1 - Aerodynamics - Frederick Lanchester - 1906.djvu/419

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APPENDIX.
App. I.

aerofoil whose 12, we find by Table IV. .75. Taking 13/15ths of this, we have .65, which the table shows corresponds to 7. That is to say (assuming the accuracy of these "plausible values"), for a speed of light of 80 feet a second the corrected values for an aerofoil of aspect ratio 12 can be read from the various tables by taking the equivalent aspect ratio 7.

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