On Sat, 20 Sep 2003 23:31:56 GMT, EDR wrote:

In article , Robert
Moore wrote:
VOR checks have nothing to do with LOC accuracy. Two separate
receivers sharing the same tuning head and CDI.

So what happens when both nav's are dialed in to the same localizer
frequency?
Do the indicators read the same?
Or is there a difference?
Which one yields a more accurate track?

If you are interested in doing a flight check of your LOC and GP receivers,
the procedure is outlined in AC91-16.

But to just check the accuracy of the LOC & GP receivers and indicators
systems, I would do a portion of the test which consists of flying directly
over the OM at the GP intercept altitude, and at approximately a 45° to the
LOC course. The GP needle should go from full up to full down deflection;
and the LOC & GP needles should be centered when passing over the OM.

This procedure does not check the LOC flag alarms or deviation sensitivity,
but if it's grossly abnormal, it is additional evidence that the unit
should be bench-checked.



Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)