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zap flap

noun
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\ ˈzap- \

Definition of zap flap

: a split flap in which the hinge axis moves aft as the flap is deflected, thus increasing the area of the wing as well as its camber

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History and Etymology for zap flap

Zap, shortened from Edward F. Zaparka †1959 (or earlier), American aeronautical engineer who patented it

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“Zap flap.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zap%20flap. Accessed 16 Jun. 2021.

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