Has anybody flown with one of these?

Paul Lamar

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Now they are talking my price range.

This last one cleverly uses compass input data to make it more
reliable. I can see the future here when the device takes
input not only from the compass but the GPS signal as well.
Perhaps rate of climb as well.

I tested one of these from Goodyear a few years ago
at OSH. It would lose orientation if you picked it up
a shook it to simulate turbulence.

My guess is using vibration isolators on the rate gyro's
would help.

Years ago a ring laser gyro unit for airliners cost $100,000.
This was prior to GPS.

Paul Lamar




Yeah ... and when I was in engineering college in the late 60s, the
mainframe that occupied the ground floor of a building and had 6 air
conditioner units out back to cool the room .... and ran all the
accounting and research and whatever on campus .... had 0.000512 GB
of RAM and a processor speed of 0.0005 GHz and required a full time
staff to run it!  My wristwatch today has more speed and memory!

Does anybody remember LORAN?

How about the old dah-dit/dit-dah radio ranges?

The only thing that hasn't changed much is Continental and Lycoming!

Steve Dorr

Are you trying to say  you have personal experience with them  and they
work well?

Paul Lamar