May 3 n 18 p 769-70: Problem of flaps, particularly in connection with slots; original object of Zap Corp was to increase lift of wing; increased drag improved landing ability but made take-off less flexible. May 17 n 20 p 903: Safety advantages of Zap flap usage; possibility of lower landing speeds.
More about flaps
Aeroplane
Aeroplane ; 44 , n 20
1933
Article (Journal)
English
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