I'm going to ask the question again to see if perhaps someone who is reading the site privately but not posting has an answer. If so, I am easy to reach via email per the address mentioned at the end of my Daily DB Cooper Bite videos:
In 1971, how was a flight path put together after the fact?
I've read multiple comments that state SAGE radar, along with data from the jet's flight recorder, along with radio transcripts was used to craft the flight path.
If this is true, my question is WHY? If SAGE is the "be-all end-all" why is anything else needed? What does flight recorder data or radio transcript data bring to the party?
This is very important, because if there are multiple components that come together from multiple sources, then all of this data is thrown in the mix to generate the flight path "after the fact," this provides for more opportunities for a mistake to be made.
Anyone? Any actual knowledge of how this flight path was constructed?