Kitty Hawk Runway ??

[John.com]

Please forgive any ignorance on my part, but could someone explain why KItty Hawk's runways and Google Earth are not in sync?

I would greatly appreciate someone pointing out the reason for the variance, i.e Google Earth would indicate the runways as 18/36 and yet they are marked 19/01.

Many thanks,

John

[Dish]

It's a Pretoria thing.....

[Air Hog]

It is because of the Magnetic variation shifting. Read this: http://www.livescience.com/9231-earths- ... hange.html

[John.com]

Thanks Air Hog!

But it then begs the question: Why aren't ALL local airfields out of sync and in need of renumbering? Or are they??

[weedy]

Runway headings are in 10 deg increments, so the markings are to the nearest 10 deg from actual mag heading, i.e. the marking can be max 5 Deg different from the actual, so they would not all change at once, make sense ?

regards
Claude

[John.com]

Yip, thanks for the clarity Claude!

Regards, John