So has anyone flown behind, or looked into, the Mid-continental "Lifesaver"?
It claims to be certified as a primary AI. And the MBTF, at 7500 hours, is
well beyond what would expect from a vacuum-driven AI.

It's more expensive, but less so "per hour". So it seems a reasonable
investment.

However, it's an electrical device. So is our Turn Coordinator. Lose
electrical power in IMC, and...

The "lifesaver" can have a backup battery which claims to provide an hour of
power.

But would you want to fly in an airplane with a standard electrical system
(ie. no dual alternator/dual battery as in a true "all electric" airplane)
with an electric TC and AI, even with an hour of backup power on the AI?

It makes me a little nervous. Am I being luddite-ish?

- Andrew

P.S. Just for reference, I should add that the club aircraft
all have Precise Flight's standby vacuum system.