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IFR route limitations
Heff
Topic Author
Heff created the topic: IFR route limitations
Hi,
Need a bit of help on a cyber exam question.
NDB at origin (A) and at destination (. Distance between 380nm, Planned groundspeed 193 kts. Headwind 10kts. What is the least rated coverage of the B NDB.
I ignored the 10 kt headwind as I was already given a planned groundspeed and not a TAS. So 380nm is 2.0hrs. No limit there. Does this mean 20nm (the min in the multichoice answers) is correct.
Brian replied the topic: Re: IFR route limitations
G'day Heff,
My take is that you also need to allow for a track error of 9 degrees either side of FPT from the last positive fix (i.e departure aerodrome) and still be within rated coverage of the destination aid (AIP ENR 1.1 para 19.1.1.c).
Given D=6.66xR (where D is the distance between aids and R is the rated coverage of the destination aid), and;
. Distance between 380nm, Planned groundspeed 193 kts. Headwind 10kts. What is the least rated coverage of the B NDB.