(Michael) wrote in message . com...
(Snowbird) wrote
In a SE airplane w/ an engine powered vacuum pump and w/out a backup
electric pump or backup electric gyros, engine failure will become
gyro failure in a minute or so.

Not true unless the engine seizes. If it keeps windmilling, the gyros
will keep spinning.

I could be mistaken, but I don't believe windmilling will
produce sufficient vacuum to keep the gyros spinning reliably.

Cheers,
Sydney