A-318 a b-2a is flying at 43000 ft in standard day, Ask an Expert

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A-3.18. A B-2A is flying at 43,000 ft in standard day conditions at 400 KTAS. The mean chord length is 39.6 ft.

a) Find the overall or total Reynolds number for the aircraft.

b) Find the percentage of the wing chord where laminar flow is present, if critical Reynolds number is 500,000. Any help?

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