Why isn't KTEX's runway designation 10/28 instead of 9/27?
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Why is the marking on the runway written as (9/27) Telluride (KTEX), Colorado, USA. whereas the direction is 284 degrees? Shouldn't it be (10/28) instead?
usa runways airport-markings
edited yesterday
ymb1
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Ashraf HassanAshraf Hassan
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Why is the marking on the runway written as (9/27) Telluride (KTEX), Colorado, USA. whereas the direction is 284 degrees? Shouldn't it be (10/28) instead?
usa runways airport-markings
edited yesterday
ymb1
68.4k7216363
asked yesterday
Ashraf HassanAshraf Hassan
613
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Welcome to Av.SE!
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– Ralph J
yesterday
add a comment |
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Why is the marking on the runway written as (9/27) Telluride (KTEX), Colorado, USA. whereas the direction is 284 degrees? Shouldn't it be (10/28) instead?
usa runways airport-markings
edited yesterday
ymb1
68.4k7216363
asked yesterday
Ashraf HassanAshraf Hassan
613
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Why is the marking on the runway written as (9/27) Telluride (KTEX), Colorado, USA. whereas the direction is 284 degrees? Shouldn't it be (10/28) instead?
usa runways airport-markings
usa runways airport-markings
edited yesterday
ymb1
68.4k7216363
asked yesterday
Ashraf HassanAshraf Hassan
613
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
ymb1
68.4k7216363
asked yesterday
Ashraf HassanAshraf Hassan
613
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
ymb1
68.4k7216363
edited yesterday
ymb1
68.4k7216363
edited yesterday
ymb1
68.4k7216363
68.4k7216363
asked yesterday
Ashraf HassanAshraf Hassan
613
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Ashraf HassanAshraf Hassan
613
asked yesterday
Ashraf HassanAshraf Hassan
613
613
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Ashraf Hassan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Welcome to Av.SE!
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– Ralph J
yesterday
add a comment |
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Welcome to Av.SE!
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– Ralph J
yesterday
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Welcome to Av.SE!
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– Ralph J
yesterday
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– Ralph J
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1 Answer
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That direction (284) is the true heading, but runways are numbered according to the magnetic heading.
Runways are usually numbered according to their direction, more precisely called runway magnetic bearing or QFU (see Q codes). (How are runways numbered?)
For KTEX:
276 magnetic, 285 true
096 magnetic, 105 true
While 276 should be rounded to runway 28, it could be a recent change that the magnetic heading changed to 276 from say <275. There is a process to go through, so a recent change in magnetic variation does not mean the renumbering will swiftly follow.
Every five years, the FAA reevaluates shifts in the pole—its magnetic variation—and makes changes to runways and flight procedures as needed. (How do airports determine when they should change their runway numbers?)
answered yesterday
ymb1ymb1
68.4k7216363
$endgroup$
3
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
3
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
add a comment |
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1 Answer
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1 Answer
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active
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votes
$begingroup$
That direction (284) is the true heading, but runways are numbered according to the magnetic heading.
Runways are usually numbered according to their direction, more precisely called runway magnetic bearing or QFU (see Q codes). (How are runways numbered?)
For KTEX:
276 magnetic, 285 true
096 magnetic, 105 true
While 276 should be rounded to runway 28, it could be a recent change that the magnetic heading changed to 276 from say <275. There is a process to go through, so a recent change in magnetic variation does not mean the renumbering will swiftly follow.
Every five years, the FAA reevaluates shifts in the pole—its magnetic variation—and makes changes to runways and flight procedures as needed. (How do airports determine when they should change their runway numbers?)
answered yesterday
ymb1ymb1
68.4k7216363
$endgroup$
3
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
3
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
add a comment |
$begingroup$
That direction (284) is the true heading, but runways are numbered according to the magnetic heading.
Runways are usually numbered according to their direction, more precisely called runway magnetic bearing or QFU (see Q codes). (How are runways numbered?)
For KTEX:
276 magnetic, 285 true
096 magnetic, 105 true
While 276 should be rounded to runway 28, it could be a recent change that the magnetic heading changed to 276 from say <275. There is a process to go through, so a recent change in magnetic variation does not mean the renumbering will swiftly follow.
Every five years, the FAA reevaluates shifts in the pole—its magnetic variation—and makes changes to runways and flight procedures as needed. (How do airports determine when they should change their runway numbers?)
answered yesterday
ymb1ymb1
68.4k7216363
$endgroup$
3
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
3
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
add a comment |
$begingroup$
That direction (284) is the true heading, but runways are numbered according to the magnetic heading.
Runways are usually numbered according to their direction, more precisely called runway magnetic bearing or QFU (see Q codes). (How are runways numbered?)
For KTEX:
276 magnetic, 285 true
096 magnetic, 105 true
While 276 should be rounded to runway 28, it could be a recent change that the magnetic heading changed to 276 from say <275. There is a process to go through, so a recent change in magnetic variation does not mean the renumbering will swiftly follow.
Every five years, the FAA reevaluates shifts in the pole—its magnetic variation—and makes changes to runways and flight procedures as needed. (How do airports determine when they should change their runway numbers?)
answered yesterday
ymb1ymb1
68.4k7216363
$endgroup$
That direction (284) is the true heading, but runways are numbered according to the magnetic heading.
Runways are usually numbered according to their direction, more precisely called runway magnetic bearing or QFU (see Q codes). (How are runways numbered?)
For KTEX:
276 magnetic, 285 true
096 magnetic, 105 true
While 276 should be rounded to runway 28, it could be a recent change that the magnetic heading changed to 276 from say <275. There is a process to go through, so a recent change in magnetic variation does not mean the renumbering will swiftly follow.
Every five years, the FAA reevaluates shifts in the pole—its magnetic variation—and makes changes to runways and flight procedures as needed. (How do airports determine when they should change their runway numbers?)
answered yesterday
ymb1ymb1
68.4k7216363
edited yesterday
answered yesterday
ymb1ymb1
68.4k7216363
answered yesterday
ymb1ymb1
68.4k7216363
answered yesterday
ymb1ymb1
68.4k7216363
68.4k7216363
3
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
3
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
add a comment |
3
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
3
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
3
3
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
$begingroup$
For the curious, the NOAA has historical magnetic declination data. The map does indeed show that the magnetic declination around Telluride has shifted by about 1° over the past ten years, which lends credence to the idea that the magnetic heading used to be less than 275°.
$endgroup$
– Michael Seifert
yesterday
3
3
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
Yeah, the magnetic North Pole has actually moved by a surprising large amount over the last few decades. It used to wander around relatively slowly over Northern Canada, but it's been quickly accelerating straight towards Russia over the last few decades. It was over Northern Canada in 1994 and is now almost halfway to Russia.
$endgroup$
– reirab
21 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@reirab I smell collusion.
$endgroup$
– hobbs
17 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
$begingroup$
@hobbs Yeah, it started in the Soviet era. Obvious Communist plot to steal the North Pole from NATO countries.
$endgroup$
– reirab
16 hours ago
add a comment |
Ashraf Hassan is a new contributor. Be nice, and check out our Code of Conduct.
Ashraf Hassan is a new contributor. Be nice, and check out our Code of Conduct.
Ashraf Hassan is a new contributor. Be nice, and check out our Code of Conduct.
Ashraf Hassan is a new contributor. Be nice, and check out our Code of Conduct.
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