The flux valve is usually located well away from steel and
electrical components, so it avoids many deviation errors.
It also is designed to be more accurate and reduce turning
errors sent to the indicator.


"Peter Duniho" wrote in
message ...
| "Bob Moore" wrote in message
| . 122...
| Jim Macklin wrote
| The slaved compass is corrected so as many errors
| (deviation) are corrected and variation is also
corrected as
| much as possible too,
|
| SAY WHAT!!!! How does one fly an ATC assigned heading
if VAR
| has been 'corrected' out?
|
| Probably the same way you do it when there's a wind. ATC
assigns you a
| heading. If that doesn't provide the track they want,
they assign a new
| one, adjusting for the error in the track.
|
| They don't care what your heading indicator is telling
you. They care that
| you follow it consistently.
|
| (Note: I don't actually know anything about how a slaved
compass is
| corrected...seems to me that variation and local deviation
(that is, not due
| to the aircraft installation itself) are not things one
could usefully build
| into a slaved compass. But assuming the slaved compass IS
correcting for
| all manner of things, there's no reason to believe it
would cause a problem
| with ATC).
|
| Pete
|
|