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How to enter North/South Pole coordinate in FMC

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Just 2 small questions.


I did a polar flight ACA15 yesterday, tried to enter the north pole into my FMC fix page for reference.

I tried N90E0; N9000.0E00000.0; N90,  no help...

So I used E89W001 instead... :P

Does anyone know how to actually put the polar coordinate into the FMC?



I saw several blue dash rings in the ND of some 777 pictures. Is it called the energy management ring at descent phase? How do I turn it on in my 777?


Thank you! 

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2. Those are energy management circles. The tool can be found via the off path descent page. When selected on the displays 2 rings around the position/aircraft appear. THe outter is a 'clean' ring the inner is a 'drag req'd' ring. If you are outside the first ring (idle power) you may find you are in a low energy situation and may need to use power. If you start getting inside the second ring - drag req'd. You may find yourslef getting hot/high etc. As long as you remain in between the two rings you are in a good position to fly an idle power approach.

Safe & smooth flying,

Clarke Ramsey

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