I do wish you wouldn't be so bloody rude though. Perhaps stating your opinion without declaring me to be "ludicrous" might make you seem to be less offensive.
Fair comment, and I apologise unreservedly.

What's more ...

Nice rant, Islander, but it seems that it may be you that is woefully ...

Another pointed out, quite forcefully, that I was unaware of very recent changes regarding certified GPS systems (although this thread is about old GPS sets!).

Secondly, the recent approval for the use of GPS for primary navigation ......
No recent changes are relevant here ... GPS has been legal ...

I sincerely hope that no one ever uses a GPS of any flavour as a primary means of navigation. As far as I'm aware this still unlawful, as GPS remains unapproved as a primary navigation system. Jeremy
Complete piffle, but don't let a lack of knowledge of a) aviation law, and b) current aviation ...