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Old 10th Feb 2011, 19:14
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NSEU
 
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747 ND VOR Raw Data?

744 Forum: Hangar 7 » VOR "cone of confusion" on EFIS

A simming forum, but well-respected.

Would someone be able to confirm that the Navigation Display VOR display on the 744 is manipulated by the FMC or EIU's to produce a constant deviation over the cone of confusion?

I've always thought of the display as being raw data. Anyone flown over a VOR recently, with the VOR display in view (on the 744)? Does the deviation bar waver or drop out when the aircraft is directly over the station? What happens to the pointers on the compass rose?

I can understand the FMC computing a steady path over a VOR station for LNAV (for A/P use), but this other stuff is new to me.

Thanks.
Rgds
NSEU

Last edited by NSEU; 10th Feb 2011 at 21:18.
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