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by Tomyboy on November 5th, 2006

Tomyboy

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What does the perpendicular fin, at the back of a passenger jet, do when moving in flight?

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  • by tripwire on December 3rd, 2006

    tripwire

    Check out what happened to Japan Airlines flight 123 for a good example of how indespensible the verticle stabilizer fin is.

    http://en.wikipedia.org/wiki/Japan_Airlines_Flight_123

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  • by Im Alec has abandoned this account on November 27th, 2006

    Im Alec has abandoned this account

    The fin basically ensures that the plane keeps pointing forwards. Without the fin at the rear, there would be little stability in the yaw axis. The aircraft would simply rotate, of at least osscillate, about the vertical axis.

    Th tailfin also supports the rudder, which is used when you want to yaw. It is little used in flight because the the plane turns by banking, but is needed at low speeds and when ho want a certain yaw angle e.f. for landings with a crosswind component.

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  • by biketroy on November 27th, 2006

    biketroy

    that movement caused by the rudder is called:
    Yaw.

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  • by Stableboy on November 5th, 2006

    Stableboy

    The rudder helps in steering: by deflecting air, it pushes the tail in the opposite direction. The vertical control surfaces also participate by causing the plane to tilt into the turn.

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What are is the fin on the back of a passenger jet
Perpendicular fin

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