The_Greq
Topic Author
Posts: 171
Joined: Fri Sep 29, 2000 3:39 am

Runway Headings

Tue Sep 18, 2001 4:00 am

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
 
tt737fo
Posts: 468
Joined: Thu Jun 07, 2001 2:13 am

RE: Runway Headings

Tue Sep 18, 2001 4:48 am

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.
 
sabenapilot
Posts: 2442
Joined: Sat Feb 26, 2000 6:18 pm

RE: Runway Headings

Tue Sep 18, 2001 5:59 am

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.

BTW-
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)
 
RyDawg82
Posts: 833
Joined: Fri Sep 14, 2001 8:30 am

RE: Runway Headings

Tue Sep 18, 2001 10:29 am

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.
 
EGNV
Posts: 168
Joined: Sat May 12, 2001 8:13 am

RE: Runway Headings

Fri Sep 21, 2001 6:09 am

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.

Interesting

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