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15th Sep 2017, 14:01

#1149 (permalink)

paco

Join Date: Nov 2000

Location: White Waltham, Prestwick & Calgary

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after consultation, simultaneous equations...

(D x H)/(O + H) = PET for a tail wind home, with O=2/3xH.

Plugging that into PSR=(ExOxH)/(O+H) and rearranging comes up with H=300

You're right - a completely impractical question

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