webcraft
Well-Known Member
And another thing..... I've only once seriously used a HBC to check a GPS position which looked odd - it was 0300 and I'd been asleep down below. The weather had changed and I was slightly disoriented; there was nothing wrong with the GPS, just me, but I wasn't happy until I'd confirmed position with a cocked hat.
On my YMI course a couple of us were asked to do a three point fix, plot it and check the postion against the GPS. The (small) cocked hat was over half a mile out from the GPS position. Didn't take too long to suss out that the wiley examiner had set the GPS datum to Solomon Islands or something equally outlandish . . .
One of the joys of teaching basic nav from time to time is that it keeps my own skills up to date 'just in case'.
- W