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What are those boxy tube things sticking down out of passenger plane wings?
Wiki User
∙ 11y ago
It sounds like you are referring to what is called flap track fairings. There are usually several of them on the underside of each wing, and taper to a point at the back. These are covers for the flap tracks- the mechanical mechanism that allows the flaps to extend and retract. Without them the flap components would be exposed and create drag.
Wiki User
∙ 11y ago
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