Boeing 747 flaps

Hi can someone please tell me the flaps for takeoff for the Boeing 747-400 and 747-800 and for the 737-8,-9

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In the 747 its mostly flaps 20

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Flaps 10 always

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It depends, if you take off from a short runway your flaps must be at 10° and if you take off from a long runway your flaps must be at 5° ;)

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747 is always flaps 20. 737 depends of airline sops and other factors

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Usually flaps 5-10. Flap 20 is sometimes used in older aircraft.

It does depend on runway length, density, weight etc.

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Thank you very much

Thankyou very much

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I recommend you to read this great tutorial about flaps made by @Skylines:

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