Peter R. wrote:
Michael wrote:


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


I see that Sporty's is encouraging this option, too, with their electric
AI.

However, doesn't the AI have the potential to tumble in an unusual
attitude? During my IFR training I recall learning that the turn
coordinator will not tumble in an unusual attitude scenario whereas the AI
may. Since recovery from an unusual attitude was taught to me by first
going to the TC, I would be hesitant to replace an instrument so reliable
during a UA.

What say you?


Vacuums tumble.

Saw it on Dave Letterman, "throwing household appliances off a building".