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Old January 21st 07, 01:44 AM posted to rec.aviation.ifr
Sam Spade
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Default How wide is an NDB approach course?

Bill Zaleski wrote:
On Tue, 16 Jan 2007 16:50:04 -0800, Sam Spade
wrote:


Bill Zaleski wrote:

On Tue, 16 Jan 2007 21:28:12 GMT, Jose
wrote:



What is the protected area under an NDB approach course? Since the
course guidance is cruder than an ILS, I'd expect it would be wider, but
how much wider? I ask also in the context of when I should consider
myself "established" on course (for purposes of descent).

Jose


When within 10 degrees of the published course.


There is no policy or rule to support that.



He asked when he should consider himself established for the purpose
of descent. Have you got better guideline to follow when in a cockpit
looking at an instrument panel? In the absence of policy or rules, as
you say, what do you suggest a better answer would be?


When the bearing indicates on-course. 10 degrees is way too early.