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.