The discussion and posts have been interesting.
As I continue to continue to work on the spreadsheet, I've made some adjustments.
It now gives me the bearing and distance to enter three fixes on the downwind leg (FOR AWARENESS ONLY.)
Fix 1: Calculated distance abeam RWY threshold.
Fix 2: Distance from abeam RWY threshold to base turn.
Fix 3: Distance from abeam RWY threshold to limit of PANSOPS protected area.
For 737NG FMS, these fixes can be entered using the RWY fix in the LEGS page.
To do this, a new RWY fix must be created -0.1 back from the RWY fix. e.g. RW05/-0.1. Bearing and distance can then be made from this new fix. The normal RWY fix does not accept bearing and distance.
Comments, questions, and suggestions are welcome.