framer,
Everything that you say is true
No further comment is necessary, excepting that you've brought up one more 'it depends' to add to the list. Recognition, reaction, and putting Stopping action into effect times are just one more thing that has changed over the years. (It's also the reason that I cautiously say Recognition and Reaction times in posts rather than quoting the number of seconds, it varys).
Without second guessing
Mutt, this is again one more reason for his asking from which era the aircraft was certified.
Regards,
Old Smokey