At 08:22 PM 1/10/2002 -0800, you wrote:
>Hi,
>
>Going thru the FG nav code for FG I noticed the To/From flag calculation 
>in radiostack.cxx.
>
>Someone might want to check on the method of calculation.
>
>I believe the to/from is independent of aircraft heading and only denotes 
>position left or right of the orthogonal vector to the selected radial.
>
>for example:
>If 090 is the selected radial then if I'm west of  the 0-180 vector 
>bisecting the station the indication is TO and if I'm east of the vector 
>the indication is FROM.

Absolutely right. There is *nothing* in a VOR system that is affected by 
aircraft heading. Only position affects it.

rj



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