Considering that much surveying is now performed with DGPS installations ... with claimed accuracies down to a centimetre or so ... the system's capabilities are not to be sneezed at ...
Thank you John, and for all the folks who scoff at GPS, and it's accuracy...well, it is very
very good, and with my private airplane, is superb, in every respect.
WAAS...or no.
All courtesy of the US taxpayer.
I would say, thanks are appreciated, and you all are welcome.
The USA leading the way...as usual, for precision navigation.
Not forgeting, of course, the Brits, who provided fully automatic landings, so long ago.
And RADAR.
And no, not forgetting the French, with the autoland capabilities on the Caravelle, with Lear-designed autopilots.
The latter lost in history, but 'tis a fact.