I've got no problem with that George, as a general indication of
discrepancy. On the other hand, I sure that some of the nitpickers in our
RAP community would want to immediately toss in the VOR calibration and
accuracy, crab angle caused by crosswind drift relative to the actual course
versus heading, yadda, yadda...

What my question really is, is how much difference (for discussion I'll
agree that the method described is acceptable) between that compass heading
and the VOR radial is tolerable before the airplane should be grounded and
the compass readjusted, repaired, or replaced? Secondly, what is the
applicable reference for that?


"GeorgeC" wrote in message
...
I had a thought, what do you think? If you are tracking a radial on a VOR
couldn't you compare the radial to the compass heading and get a good idea
of
the compass error?


On Mon, 19 Jun 2006 14:17:23 GMT, "Casey Wilson" N2310D @ gmail.com
wrote:

Thanks, I know about compass roses and swinging the compass. What I'm
looking for is an indication that the compass needs swinging. That's why
my
hypothetical scenario stated that the runway alignment is correct. That
does
happen, by the way, even if the odds are against it.

GeorgeC