To: TaraP
I thought those designations would be using geographical north, not magnetic north, anyway.
8 posted on
01/06/2011 8:56:44 AM PST by
Izzy Dunne
(Hello, I'm a TAGLINE virus. Please help me spread by copying me into YOUR tag line.)
To: Izzy Dunne
Probably for the compasses.
11 posted on
01/06/2011 8:57:57 AM PST by
stuartcr
(When politicians politicize issues, aren't they just doing their job?)
To: Izzy Dunne
Magnetic north just exists...and it changes constantly...even during a day. These planes fly by magnetic?? Yeh...right...It's 2010 folks and I think this is jerking us around.
Go to the Observatory in Greenwich site....very cool.....
To: Izzy Dunne
Once you get in northern Canada they do designate the runways using true north rather than magnetic north.
To: Izzy Dunne
I thought those designations would be using geographical north, not magnetic north, anyway. Aircraft basic avionics use a magnetic compass. The magnetic deviation and magnetic variation are drastically different across the United States, so magnetic directions come straight off the avionics, while geographic directions must be calculated after consulting a chart.
70 posted on
01/06/2011 2:22:25 PM PST by
ArrogantBustard
(Western Civilization is Aborting, Buggering, and Contracepting itself out of existence.)
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