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Author Topic: Tampa Runway Renumbered  (Read 8458 times)

Offline cptbrw

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Tampa Runway Renumbered
« on: January 06, 2011, 05:01:06 PM »
Because of the continuing change in the location of magnetic North, Tampa's Runway 18R/36L will reopen January 13th as Runway 19R/1L.  Tampa will make similar changes to its other runways later this month.

Here's a link to a National Geographic story about what might be causing the changes in magnetic North which has been moving toward Russia at the rate of about 40 miles per year for the last 10 years.

http://news.nationalgeographic.com/news/2009/06/090622-earths-core-dynamo.html
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alltheway

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Re: Tampa Runway Renumbered
« Reply #1 on: January 06, 2011, 05:31:02 PM »
As I am reading this story right now I was wondering for some time if the weight of large cities could be involved, all of that concrete has a huge weight of course... And so many people (6.2 billion).

For the inner core of our planet it's a huge sling to rotate the outer part where we live... But sientists may work that one out for me  :lol:
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Offline kyle172

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Re: Tampa Runway Renumbered
« Reply #2 on: January 07, 2011, 03:58:41 AM »
Interesting..TIA's a nice airport, not to busy or too slow either
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Offline Jason

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Re: Tampa Runway Renumbered
« Reply #3 on: January 07, 2011, 09:16:41 AM »
It's going to take a while for everyone to get used to the new numbers.  Last year, PBI renumbered 9L/R to 10L/R and all you would hear for the first few weeks was "expect the ILS runway niner....ehhhh.....one zero right."  Eventually you get used to the new numbers.  :-)
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Offline Biff

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Re: Tampa Runway Renumbered
« Reply #4 on: January 07, 2011, 11:18:40 AM »
Magnetic north is moving 40km per year, not miles.    :-o
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Offline tyketto

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Re: Tampa Runway Renumbered
« Reply #5 on: January 07, 2011, 11:26:42 AM »
This has me thinking...

my guess is that for this runway change, the 18s/36s at TPA must have had a magnetic heading of 184/004, not to exceed 184.5/004.5. If so, and the magnetic variation from the N. pole caused it to roll over .5, then any airport near that threshold is going to have that same issue.. so at least in N. America, I'd except every airport with this situation to change runway designations. For example, KSAT and KRNO could change, since they are close to that threshold (KSAT has 12R/30L at 126.5/306.5 magnetic, while KRNO is at 184.3/344.3 magnetic).

Don't know for sure..

BL.
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Offline atcman23

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Re: Tampa Runway Renumbered
« Reply #6 on: January 13, 2011, 07:56:36 PM »
KCLE had this happen around 1999.  The parallel runways went from 5/23 to 6/24.  Interestingly, the crossing runway 10/28 stayed the same.
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