What makes wind tunnel testing different from testing during an actual flight?

What makes wind tunnel testing different from testing during an actual flight?
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Answer :

Without wind tunnel testing and other testing, testing in flight would be even more dangerous to the test pilot, and anyone killed should the aeroplane crash.
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Description : A flight is to depart from an airport with runway 09 and 27. Surface wind is 270/05; an  inversion is reported at 300 feet with turbulence and wind shear. The wind just above the  ... throttle during the passage through the inversion  d. Depart runway 27 with as steep an ascent as possible

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A flight is to depart from an airport with runway 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the inversion is 090/30. What is the safest departure procedure? a. Take-off is not possible under these conditions b. Depart on runway 09 with a tailwind c. Depart runway 27 with maximum throttle during the passage through the inversion d. Depart runway 27 with as steep an ascent as possible

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Last Answer : d. 1hr 16 min, 616nm

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Last Answer : d. 1hr 16 min, 616nm

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A train just leaves a station and enters a tunnel. Where is the best place for a claustrophobic person to sit? -Riddles

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Which river in England has a tunnel under it ?

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