Tuesday, February 2, 2010

On each of the upper wings of the Mig 15 there are two thin, raised ridges. What purpose do they serve?

On each of the upper wings of the Mig 15 there are two thin, raised ridges. What purpose do they serve?On each of the upper wings of the Mig 15 there are two thin, raised ridges. What purpose do they serve?
The short answer is that they control span-wise airflow over the wing, i.e. the flow from wing root to wing tip. This improves control efficiency and generally improves the wing's stall characteristics.On each of the upper wings of the Mig 15 there are two thin, raised ridges. What purpose do they serve?
They are wing fences (a.k.a boundary layer fence or potential fences) These are set parallel to the airflow, usually on swept wing aircrafts, to obstruct span-wise airflow along the wing, and prevent the entire wing from stalling at once.
they're wing fences which help stabilise the MiG in its stall characteristics

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