TSO 129, like 145/145 is a shell behind proprietary RTCA technical documents.
At least that explains my trouble with finding documentation.
Anyway, I learn something new most every day. This makes one more thing.
The point at which the turn begins is a function of ground speed and angle of course change.
Of course (pun!) it is, just like when we used to fly the jet airways using VOR/DME and choosing how much "turn anticipation" to use in order to remain within the lateral limits of the airway. 'cept it's all algorithms and binary logic gates now instead of Mark I cranium work.
The RNP value or the sensitivity mode has nothing to do with it.
So the maximum distance you can pass abeam of a fix and auto sequence to the next fix in the flight plan doesn't change according to the sensitivity mode then? Could you please verify that aterpster?
Thanks,
westhawk