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B737-112
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Posts: 828
Joined: Tue Nov 30, 1999 6:01 pm

Runways Changing Directions....

Tue Nov 28, 2000 4:44 pm

How often does this occur, it happened at my hometown airport BUR. There was Rwy 07/25 and changed later to 08/26. Can someone tell me if this is caused by earthquakes and what other airports have this happened at? I think when BUR was built Rwy 7 was a 074 magnetic and is now 076. Thanks for all help! -Ryan
 
Dalmd88
Posts: 2399
Joined: Fri Jul 28, 2000 3:19 am

RE: Runways Changing Directions....

Tue Nov 28, 2000 4:53 pm

The magnetic field of the earth is consantly changing. Runway numbers have to be changed every so often to reflect the magnetic change
 
N202PA
Posts: 1280
Joined: Tue Jun 06, 2000 9:44 pm

RE: Runways Changing Directions....

Tue Nov 28, 2000 5:01 pm

The main runway at Washington National Airport (DCA), 18/36, was recently changed to 1/19 for this very reason.  
 
gkirk
Posts: 23346
Joined: Thu Jun 15, 2000 3:29 am

RE: Runways Changing Directions....

Wed Nov 29, 2000 12:23 am

DALMD88 is correct.
When you hear the noise of the Tartan Army Boys, we'll be coming down the road!
 
Guest

RE: Runways Changing Directions....

Wed Nov 29, 2000 4:50 am


Can you please explain the relationship between a runway number and magnetic field?

Best Regards...
 
flyf15
Posts: 6633
Joined: Tue May 18, 1999 11:10 am

RE: Runways Changing Directions....

Wed Nov 29, 2000 5:16 am

In short, the runway number is the magnetic direction of the runway divided by 10, then rounded to the nearest number. For example, if a runway points at 174 degrees magnetic, its number will be 17. The opposite end, being 180 degress off, will be 354, thus 35. The runway is 17/35.
 
Guest

RE: Runways Changing Directions....

Wed Nov 29, 2000 6:11 pm


Thanks Flyf15, that was helpful.

But what are L and R assigned also to runways with numbers? For example, 27R or 8L.

Thanks...
 
LBA
Posts: 496
Joined: Tue Nov 28, 2000 10:24 pm

RE: Runways Changing Directions....

Wed Nov 29, 2000 9:40 pm

The L and R mean left and right. This occurs where airports have parallel runways. So Manchester Airport in the Uk used to have a single 6/24 runway - it now has 6/24L and 6/24R as the new runway is almost complete.

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