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Old 6th Dec 2013, 01:04
  #668 (permalink)  
Burnie5204
 
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The relevant dimensions are:

Cos30 = 0.87 (to 2 d.p.), I.e. 87% of length of original.

10 x 10 rotor diameter will therefore ovalise to 10m wide by 8.7m (10cos30) long.
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