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31st May 2009, 02:37

#33 (permalink)

Short_Circuit

Join Date: Sep 2007

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The display in NSEU’s post 26 is correct. The bars indicate the position of the C/L relative to the A/C. Fly to the bar.
In the diagram, the A/C is to the left of C/L in both cases and the indicator displays this. The problem is it was to the pilots right side, it is now to the pilots left side as the pilot interprets it (pilot being inverted) but still to the right of the A/C.

The same will happen to G/S, it will display relative to the A/C, so if the G/S C/L is below the A/C initially, when inverted it is still below the A/C but displayed in the indicator into the blue. Bars are not dependent of the ball orientation.

To give some credence to this, when ground testing it does not matter where the test set antenna is located, above, below, left or right of the A/C it is the signal strength of the individual LOC & GS frequencies emitted by the test set that determines where the bars indicate.

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