Principles of Flightmedium#552
Fowler flaps are the most effective flap type because they:
A
Only increase camber
B
Are simpler to manufacture
C
Reduce drag
D
Extend rearward and downward, simultaneously increasing both camber and wing area
CorrectExplanation
Fowler flaps move aft on tracks before deflecting downward, adding wing area and camber for the largest increase in CLmax.
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