PPRuNe Forums - View Single Post - Aircraft limited to

27th May 2012, 02:20

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Grum

Join Date: Jul 2004

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Aircraft limited to < 85 deg North

My aircraft is limited to operations between North / South 85 degrees, and I would like to know why we can not navigate over the poles. In reality we have no need to do so but I'd like to know the reason.

We have 3 IRS using ring lasor gyros, 2 GPS and FMS using all resources including DME/DME etc

At N75deg the system automatically changes to TRUE north to cope with rapid variation changes.

So why can I not fly over the pole?

Thanks

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