In article et,
"Steven P. McNicoll" wrote:

"Ron Garret" wrote in message
...

Oh, Jose, you're giving up too easily!

One of the (many) risks of UAHGPSFIFRENIUSCAS (you figure it out) is
that a pilot might become complacent about using his primary navaids,
particularly off-airways since the constant VOR twiddling required for
off-airway navigation is such a pain in the ass and the use of the GPS
is so effortless and (almost invariably) reliable.


But off-airways flight doesn't require any VOR twiddling.

It does if you're out of radar coverage. So the essential elements of
the risk a

1. No radar coverage (or a controller not paying attention, which has
also been known to happen)
2. Pilot decides to rely on GPS alone for guidance (complacency) and
3. GPS fails silently.

Granted, it's not a large risk. But it is possible, and it is possible
ONLY in the presence of a VFR-only GPS.

You say there are many risks in UAHGPSFIFRENIUSCAS. Could you please
identify some of them?

I just identified one. I identified another in another branch of this
this thread.

BTW, just because the risks are numerous does not mean that they are
significant. (But just because they are not significant does not mean
that they do not exist.)

Yes, complacency is a form of incompetence. But that does make it any
less of a risk. Pilot complacency, in all its many manifestations, is a
widely recognized risk. Furthermore (and this is the important part)
this particular form of complacency CANNOT MANIFEST ITSELF EXCEPT WHEN A
HANDHELD GPS IS IN USE. That makes it reasonable to assign at least
part of the causality to the use of the GPS.


Why can't that particular form of complacency manifest itself when on a
long-range vector?

Because you can't decide to stop using your VORs and use your GPS
instead if you do not have a GPS. Isn't that obvious?

You are using up your quota of stupid questions.

rg