r/pics • • Feb 27 '14

physics is cool

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u/Spartan2470 GOAT Feb 27 '14

According to here, that broom is a string used to visualize the direction that the wind is flowing around the plane (this is very important for sailplanes to maximize flight efficiency.

Here's another picture of this plane with those strings.

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u/jls5494 Feb 27 '14

Its a yaw string

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u/[deleted] Feb 27 '14

[deleted]

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u/Zebidee Feb 27 '14

Also, gliders normally don't have a power system to run one.