I suspect this is the pitch and roll sensor he is using.
If so it won't work in an aircraft as it is a gravity vector sensor.
An A/C  gravity vector always points toward the bottom of the aircraft and
not down. This indicates a disturbing lack of understanding of the

problems :-)>

I hope he does not test it under real IFR conditions :-)>

I just wonder if that could be used to advantage when information from a

magnetomometer (sp?) is compared and the difference used for skid, AOA and
other attitude display?

...Chrissi

guys ----
You HAVE to have either an attitude reference (like a gyro) or an inertial rate
system (laser ring, accelerometers, or the laminar airflow system used in the
homebuilt Don Hewitt (???) system a few years ago in Sport Av).  The rate
systems drift more in most cases.  A gravity sensor won't get it (have you
ever seen Bob Hoover pour a glass of water as he does a barrel roll?)  ,but
if the accelerometer could be used as a rate system, then it could work.

Bill Freeman
Long EZ builder & pilot
BSME, MSME
EAA Technical Counselor

One is highly unlikely to get any effective attitude system for $100.
That is the holy grail for a lot of need for attitude reference
in many different transportation fields for the last 70 years. 
Just ask Greg. 

BTW It is hard to beat an artificial horizon vacuum gyro for cost.

Paul Lamar
 
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