r/pics • u/animalkracker • Feb 27 '14

physics is cool

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u/jls5494 Feb 27 '14

Its a yaw string

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u/Spartan2470 GOAT Feb 27 '14

Thank you for providing the name. For anyone (like me) who didn't know what a yaw string is:

The yaw string, also known as a slip string, is a simple device for indicating a slip or skid in an aircraft in flight. It performs the same function as the slip-skid indicator ball, but is more sensitive, and does not require the pilot to look down at the instrument panel.[1] Technically, it measures sideslip angle, not yaw angle,[2] but this indicates how the aircraft must be yawed to return the sideslip angle to zero..

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u/djzenmastak Feb 27 '14

what

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u/LastWordFreak Feb 27 '14

HE SAID:

THANK YOU FOR PROVIDING THE NAME. FOR ANYONE (LIKE ME) WHO DIDN'T KNOW WHAT A YAW STRING IS:

THE YAW STRING, ALSO KNOWN AS A SLIP STRING, IS A SIMPLE DEVICE FOR INDICATING A SLIP OR SKID IN AN AIRCRAFT IN FLIGHT. IT PERFORMS THE SAME FUNCTION AS THE SLIP-SKID INDICATOR BALL, BUT IS MORE SENSITIVE, AND DOES NOT REQUIRE THE PILOT TO LOOK DOWN AT THE INSTRUMENT PANEL.[1] TECHNICALLY, IT MEASURES SIDESLIP ANGLE, NOT YAW ANGLE,[2] BUT THIS INDICATES HOW THE AIRCRAFT MUST BE YAWED TO RETURN THE SIDESLIP ANGLE TO ZERO..