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RVR Fog And Holding In The Stack - Questions

Tue Sep 26, 2006 4:35 am

Recently London Gatwick had visibility down to some 200m and they were stacking the aircraft coming into the zone at the holding points. The Gatwick Director was asking all aircraft their "RVR requirements". I could not understand though how it works - supposing the aircraft at the top of the stack is fully capable of Cat III and the ones below it are only able to Cat I or Cat II for example, would the controller take the one off the top and get him in or would it be strictly first come first served? Or if the controller knew that one coming toward the stack was a Cat III capable would he place him on the bottom of the pile so he can go straight in?

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RE: RVR Fog And Holding In The Stack - Questions

Tue Sep 26, 2006 4:56 am

If the one on top is the only one that can get in with the current weather conditions, then it will be let in ahead of all the rest.
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RE: RVR Fog And Holding In The Stack - Questions

Tue Sep 26, 2006 7:41 am

They'd vector the guy around and descend him until in a position to fly the approach.

There's a lot of factors in the RVR requirements to shoot an approach. Aircraft capabilities, airline restrictions, and in some cases flight crew restrictions.

A recent upgrade in the left seat may be on high minimums, meaning until he completes the required hours or cycles in the aircraft, he can be restricted to higher minimums on approaches than a captain who's not on high mins.

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