Scott Moore wrote:
Mitty wrote:

Our club is looking at upgrading a couple of airplanes to Garmin 430s, etc.

It seems to me that standby vacuum would be a good thing to add, too.

1) Good idea? Do these systems really work?

2) Recommendations on type/brand/model?

TIA


Electric attitude. Vacuum pumps are going away.

But, can't an electric attitude indicator fail? Bearings wear out.
I've suffered that on a hard disk. Are there any MTBF numbers for the
two systems?