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Stick free stability permits ____________

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in Aircraft Design by (701k points)
Stick free stability permits ____________

(a) elevator to float

(b) elevator to be fixed

(c) fixed rigid body

(d) lift and drag ratio

I had been asked this question in final exam.

Question is from Stick-Free Stability topic in section Stability, Control, and Handling Qualities of Aircraft Design

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The correct option is (a) elevator to float

For explanation I would say: In stick free, we allow elevator to float as angle of attack or relative wind changes. In stick fixed we will deflect elevator at some angle and then fix it at that angle. Stick free stability depends upon number of factors such as hinge moment etc.

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