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Runway Headings  
User currently offlineThe_Greq From Netherlands, joined Sep 2000, 181 posts, RR: 1
Posted (14 years 8 months 2 weeks 4 days 12 hours ago) and read 1352 times:

Hi guys,

I live next to Amsterdam Schiphol Airport. And in the future (1 or 2 years) the runways will be called different.
For example: Now=Zwanenburgbaan 01L-19R
Next=Zwanenburgbaan 36L-18R

Any ideas or suggestions?

Thank you very much in advance

Gregor van der Made
Amsterdam, Holland

4 replies: All unread, jump to last
User currently offlineTT737FO From United States of America, joined Jun 2001, 472 posts, RR: 8
Reply 1, posted (14 years 8 months 2 weeks 4 days 11 hours ago) and read 1312 times:

It's called the phenomenon of magnetic deviation (degrees variation from true north). It depends on where you live. Each year the deviation may be 0.1degree. Since the asphalt was laid and the numbers painted on your runway, enough deviation has taken place such that the runways must be re-painted.

User currently offlineSabenapilot From Belgium, joined Feb 2000, 2748 posts, RR: 46
Reply 2, posted (14 years 8 months 2 weeks 4 days 10 hours ago) and read 1298 times:

As TT737FO more or less explained, RWY's are referred to by their MAGNETIC heading. If the heading of a RWY is 186°, it'll be called RWY 19.
Due to magnetic variation the magnetic heading of a RWY will change over time. This might result in a RWY heading of for instance 185°, thus causing that runway to be renamed RWY 18.

Did you know that in aereas of big magnetic abnormalities (e.g. close to the poles) we do not refer to a MAGNETIC heading but to a TRUE heading when giving a number to a RWY?
Well, it's actually clever isn't it? Wouldn't it be confusing to rename your RWY every week?
Im not 100% sure about this, but I think these RWYs also have a letter T in their name to make sure the pilot does not get confused. (e.g. RWY 19T)

User currently offlineRydawg82 From United States of America, joined Sep 2001, 877 posts, RR: 7
Reply 3, posted (14 years 8 months 2 weeks 4 days 5 hours ago) and read 1264 times:

Palm Springs did that years ago, runway 30 to 31L and 31 R.....Not something you see a lot, but is done...Ry

You can take the pup out of Alaska, but you can't take the Alaska out of the pup.
User currently offlineEGNV From United Kingdom, joined May 2001, 171 posts, RR: 0
Reply 4, posted (14 years 8 months 2 weeks 1 day 9 hours ago) and read 1226 times:

Teesside also did that, it was an old WWII base, that's now a commercial airport. In I think the 1960s, it changed from 06-25 to 05-23.


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