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Shift Of Magnetic North Means Airport Changes  
User currently offlineltbewr From United States of America, joined Jan 2004, 13116 posts, RR: 12
Posted (3 years 8 months 2 weeks 6 days 2 hours ago) and read 5267 times:

http://www2.tbo.com/content/2011/jan...agnetic-north-pole-impacts-tampa-/

This article discusses the remarking of the runways as to their runway numbers at TPA airport to reflect the changes in the compass headings due to the shifts of the magnetic north over the years. The Magnetic North is located close the the Arctic Circle in Northern Canada, but has been shifting about 40 miles (65 Km) a year toward Russia.

Have there been other airports that have changed their runway designations (like 18/36 to 17/35) or the like as TPA has done to reflect the shift in the magnetic North?

26 replies: All unread, showing first 25:
 
User currently offlineDashTrash From United States of America, joined Aug 2006, 1528 posts, RR: 2
Reply 1, posted (3 years 8 months 2 weeks 6 days 2 hours ago) and read 5254 times:

Quoting ltbewr (Thread starter):
Have there been other airports that have changed their runway designations (like 18/36 to 17/35) or the like as TPA has done to reflect the shift in the magnetic North?

Too numerous to list. BHM and ROA come to mind.


User currently offlinephatfarmlines From United States of America, joined Sep 2001, 1358 posts, RR: 1
Reply 2, posted (3 years 8 months 2 weeks 6 days 2 hours ago) and read 5188 times:

7 days to re-number the left-side main parallel runway. Anyone know how the planes coming in from the south approach the right-side parallel runway? Is it a sidestep to avoid flying over the noise-sensitive Palma Ceia area in South Tampa?

User currently offlinePHLapproach From Philippines, joined Mar 2004, 1244 posts, RR: 19
Reply 3, posted (3 years 8 months 2 weeks 6 days 2 hours ago) and read 5188 times:

SXM changed Rwy 9 to 10 just prior to a trip I took on Thanksgiving 08. I didn't even know it was done until I saw the new markings.

User currently offlineMHTripple7 From United States of America, joined Feb 2008, 1105 posts, RR: 8
Reply 4, posted (3 years 8 months 2 weeks 6 days 1 hour ago) and read 5063 times:

Quoting phatfarmlines (Reply 2):
Anyone know how the planes coming in from the south approach the right-side parallel runway? Is it a sidestep to avoid flying over the noise-sensitive Palma Ceia area in South Tampa?

I don't think the noise restrictions are in place because of these circumstances. I saw a WN 737 doing a standard ILS approach for 36R right over Beach Park in South Tampa on the way home from school today.


User currently onlineMir From United States of America, joined Jan 2004, 21641 posts, RR: 55
Reply 5, posted (3 years 8 months 2 weeks 6 days ago) and read 4811 times:

AMS renumbered from 1/19 to 18/36 several years ago when the Polderbaan was opened.

-Mir



7 billion, one nation, imagination...it's a beautiful day
User currently offlineNorthwest727 From United States of America, joined Jul 2005, 491 posts, RR: 1
Reply 6, posted (3 years 8 months 2 weeks 5 days 14 hours ago) and read 4613 times:

CLE renumbered their 5/23s to 6/24s about 10 years or so ago. 1G0 (Wood County Regional, Bowling Green, Ohio, USA) renumbered their 9/27 to 10/28 about 6 years ago.

User currently offline26point2 From United States of America, joined Mar 2010, 829 posts, RR: 0
Reply 7, posted (3 years 8 months 2 weeks 5 days 14 hours ago) and read 4605 times:

Airports in N. Canada near the Magnetic North Pole avoid this problem by measuring and marking runways using True North. I believe runway 19 would be marked 19T

User currently offlineIAHFLYR From United States of America, joined Jun 2005, 4790 posts, RR: 22
Reply 8, posted (3 years 8 months 2 weeks 5 days 13 hours ago) and read 4588 times:

IAH went from 14's/32's to the current 15's/33's about 10 years back, but the mag var changes did not impact the east/west parallels at that time.

Quoting phatfarmlines (Reply 2):
Anyone know how the planes coming in from the south approach the right-side parallel runway?


LOC Runway 1R, RNAV 1R, or visual.

Quoting phatfarmlines (Reply 2):
Is it a sidestep to avoid flying over the noise-sensitive Palma Ceia area in South Tampa?


The ILS 1L does not have side-step minimums, but does have circling mins, so it would be more clearance semantics!!!  



Any views shared are strictly my own and do not a represent those of any former employer.
User currently offlinespeedygonzales From Norway, joined Sep 2007, 732 posts, RR: 0
Reply 9, posted (3 years 8 months 2 weeks 5 days 13 hours ago) and read 4552 times:

TRD changed from 10/28 to 9/27 some time between opening during WWII and now.


Las Malvinas son Argentinas
User currently offlineAKiss20 From United States of America, joined Sep 2007, 609 posts, RR: 5
Reply 10, posted (3 years 8 months 2 weeks 5 days 12 hours ago) and read 4512 times:

MMU changed from 12/30 to 11/31 sometime in the 60s iirc. I have a book on the history of MMU and was surprised to find that the runway changed. Interesting 5/23 has always been 5/23


Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are
User currently offlineYWG From Canada, joined Feb 2001, 1146 posts, RR: 2
Reply 11, posted (3 years 8 months 2 weeks 5 days 12 hours ago) and read 4492 times:

Quoting 26point2 (Reply 7):
Airports in N. Canada near the Magnetic North Pole avoid this problem by measuring and marking runways using True North. I believe runway 19 would be marked 19T

I believe it starts north of the 60. Can be tricky to do an IFR approach if you haven't done many up there the variation is great.



Contact Winnipeg center now on 134.4, good day.
User currently offlineDaleaholic From UK - England, joined Oct 2005, 3208 posts, RR: 13
Reply 12, posted (3 years 8 months 2 weeks 5 days 10 hours ago) and read 4429 times:

MAN changed a couple of years ago... 24L/R - 06L/R was changed to 23L/R - 05L/R


Religion is an illusion of childhood... Outgrown under proper education.
User currently offlinetimz From United States of America, joined Sep 1999, 6836 posts, RR: 7
Reply 13, posted (3 years 8 months 2 weeks 5 days 10 hours ago) and read 4428 times:

Quoting AKiss20 (Reply 10):
MMU changed from 12/30 to 11/31

13/31 you mean? Probably no US airports have ever decreased their numbers?

Has any airport changed twice yet?


User currently offlinekalvado From United States of America, joined Feb 2006, 491 posts, RR: 0
Reply 14, posted (3 years 8 months 2 weeks 5 days 10 hours ago) and read 4420 times:

Quoting 26point2 (Reply 7):
Airports in N. Canada near the Magnetic North Pole avoid this problem by measuring and marking runways using True North. I believe runway 19 would be marked 19T

Just wonder if there are any airports with parallel runways doing that?
Would there be 19TR/TL ?


User currently offlineYWG From Canada, joined Feb 2001, 1146 posts, RR: 2
Reply 15, posted (3 years 8 months 2 weeks 5 days 10 hours ago) and read 4421 times:

Quoting kalvado (Reply 14):
Just wonder if there are any airports with parallel runways doing that?
Would there be 19TR/TL ?

I haven't seen any. Most of them are gravel anyways.



Contact Winnipeg center now on 134.4, good day.
User currently offlineAKiss20 From United States of America, joined Sep 2007, 609 posts, RR: 5
Reply 16, posted (3 years 8 months 2 weeks 5 days 6 hours ago) and read 4276 times:

Quoting timz (Reply 13):
Quoting AKiss20 (Reply 10):
MMU changed from 12/30 to 11/31

13/31 you mean? Probably no US airports have ever decreased their numbers?

errr yes....math fail   



Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are
User currently offlineMDShady From United States of America, joined Jan 2010, 74 posts, RR: 0
Reply 17, posted (3 years 8 months 2 weeks 5 days 4 hours ago) and read 4195 times:

ATW changed the 29/11 to 30/12 last spring

User currently offlineJohnJ From United States of America, joined Jun 2000, 1659 posts, RR: 2
Reply 18, posted (3 years 8 months 2 weeks 4 days 23 hours ago) and read 4081 times:

And this proves there's a conspiracy theory for just about everything:

http://www.tgdaily.com/unbalanced/53...y-change-fuels-fears-of-armageddon


User currently offlineCGKings317 From Canada, joined Nov 2005, 306 posts, RR: 6
Reply 19, posted (3 years 8 months 2 weeks 4 days 22 hours ago) and read 4055 times:
AIRLINERS.NET CREW
CHAT OPERATOR

A few years back, ANC's parallels went from 6/24 to 7/25 a few years back (I'm thinking around 2006). The N/S runway did not change designations.

~CGKings317  



I love ✈ & volcanoes but the 2 of them dont get along, just ask KLM867 & PH-BFC
User currently offlineB737200 From Malta, joined Feb 2005, 225 posts, RR: 2
Reply 20, posted (3 years 8 months 2 weeks 4 days 15 hours ago) and read 3934 times:

In Malta we changed a few years ago;

LMML Runways were 32/14 - 24/06, they are now 31/13 - 23/05.



Lady Guinness is ready to fly...
User currently offlineXPJets From United States of America, joined Feb 2007, 104 posts, RR: 0
Reply 21, posted (3 years 8 months 2 weeks 4 days 13 hours ago) and read 3823 times:
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GFK's E/W parallels changed from 8/26 to 9/27 L/R 2 years ago. The N/S parallels are due to shift from 17/35 L/R to 18/36 L/R soon.

MSP's parallels changed from 11/29 L/R to 12/30 L/R around 15 years ago.



GO SIOUX!
User currently offlineMontanaFL From United States of America, joined Dec 2003, 99 posts, RR: 0
Reply 22, posted (3 years 8 months 2 weeks 4 days 12 hours ago) and read 3723 times:

I am in Tampa and while driving to the work the other day I saw that 18R was closed and no idea why but read an article in the paper stating why. I had never heard of this being done or even considered how that would impact runways after hearing that the poles change. When the story was on the local TV news they mentioned that Atlanta was to begin next year.


I miss those DL L-1011's
User currently offlinespeedygonzales From Norway, joined Sep 2007, 732 posts, RR: 0
Reply 23, posted (3 years 8 months 2 weeks 4 days 9 hours ago) and read 3553 times:

I found a couple of good maps showing how the magnetic declination varies across the world on Wikipedia:
Low res:
http://en.wikipedia.org/wiki/File:IGRF_2000_magnetic_declination.gif
High res, including annual change:
http://en.wikipedia.org/wiki/File:Mv-world.jpg



Las Malvinas son Argentinas
User currently offlineGeezer From United States of America, joined Aug 2010, 1479 posts, RR: 2
Reply 24, posted (3 years 8 months 2 weeks 4 days 7 hours ago) and read 3419 times:

I just read about this on Yahoo an hour ago; normally, I tend to take most things I hear about on Yahoo "with a grain of salt"
however, after reading the scientific explanation behind it, I'm inclined to think they really have it "nailed" this time.

( Very well written piece, IMO )



Stupidity: Doing the same thing over and over and over again and expecting a different result; Albert Einstein
25 COS777 : That article made a big deal about closing the runway to repaint it. Seems like repainting it would be the easiest part of the whole deal. I'd think t
26 Viscount724 : LHR's two 09-27 runways were originally 10-28.
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