Michael wrote:
What kind of airplanes do you have? I can understand wanting attitude
indication redundancy in a Bonanza, but it's overkill on a Skyhawk.

I'm of the general opinion that it's fairly difficult to go overboard
on safety equipment, though the C-150 with TCAS that I saw a year back
tripped even my meter.

I think that if you really feel the need for redundancy, the sensible
solution is replacing the T&B with an electric AI.

I'd agree with this. I have a 172 with the Precise Flight system that
was installed before I bought it and I certainly like having it. But
it's not really a cheap install and there is a recurring AD (unless
this is eliminated on new units?) so when you add it all in I doubt
it's much cheaper than the electric AI.

-cwk.