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CAT II Holding point

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Old 11th Oct 2006, 14:19
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CAT II Holding point

Hello everyone!!
I would like to know when do an aircreft must hold before cat2 markings.
I mean about weather conditions?
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Old 11th Oct 2006, 14:32
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When LVPs' are in force.
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Old 11th Oct 2006, 15:53
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Yes but how about the numbers?
2 miles and 500 feet would be right or below this restcriction??
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Old 12th Oct 2006, 07:43
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An airport usually goes into LVP's when the cloud base becomes less than 200feet, and visibility less than 600 metres (some use 550).
When LVP's are in force, the airfield lighting and equipment must be up to Cat 3 standards, aircraft separation increases, Cat 2/3/ holds become in use. RVR readouts normally become active below 1500 metres.

Hope this is of some use.
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Old 12th Oct 2006, 07:54
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To be blunt about it you use Cat 2/3 HPs when you are told to.

You will be told to use them when LVPs are in force.

LVPs will be in force when the airport decides to put them in force - but effectively when the weather deteriorates to Cat 1 Minima or less (circa 200'/600m).
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