On Wed, 25 Oct 2006 14:37:05 +0200, Stefan
wrote in :

Larry Dighera schrieb:

Are you able to provide the specific wording from the C-172S POH that
mentions that only ASI, AI, VSI, Alt. and magnetic compass steam gages
will be available in the event of glass cockpit failure, and also
mentions that the autopilot, radio communications, fuel gages, and
navigation systems will become inoperative?

I don't need a scientific degree in logic to understand even without
reading the POH that when the screen goes black, all those nifty things
which were on that very screen before are, well, not available anymore.

True. But I wasn't aware that the autopilot wouldn't even work as a
wing leveler.

Besides, pilots flew with "only ASI, AI, VSI, Alt. and magnetic compass
steam gages" for decades, so what's the big deal.

They usually had some sort of fuel gage.

I agree that a backup radio would be nice, though. (Which would perfectly
double as a navigation aid using VDF.)


Agreed. It is vital to carry portable comm and nav equipment on IFR
flights. What is VDF? I presume the 'DF' refers to direction
finding, but what's the 'V' stand for?