Assembly And Rigging Sectional And Final Practice Test

A Gurney flap is usually found on a control surface and is used to help center it.

True False On the leading edge On the wingtip

Correct Answer:

True

Explanation:

A Gurney flap is a small tab attached to the trailing edge of a wing section or control surface. Its purpose is to increase the camber of that surface, which raises lift and changes the aerodynamic balance or moment produced by the surface. When placed on a control surface such as an elevator or aileron, this added lift on that surface helps adjust the trim moment and can make it easier to keep the surface in its neutral, centered position during flight. It’s not located on the leading edge or at the wingtip—the trailing edge is where a Gurney flap does its work. So the statement is true: it’s usually found on a control surface and helps center it.

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