David Lesher wrote:
snip

: A new design would have a AC inductor motor with a squirrel-cage
: motor, and a small internal inverter. But does anyone make them
: like that?

The DC-powered electric gyros are actually as you describe: a three
phase, 400Hz motor with an inverter. See www.chiefaircraft.com - aircraft
- flight instruments - gyros - RC Allen Electric Gyros.

The 400Hz models, of course, have no inverter.
--
Aaron Coolidge (N9376J)