I downloaded a homebuilt version of a AOA some time ago. If you want it
contact me and I will I will attach a copy and send it to you.





"Montblack" wrote in message
...
First time I've stumbled across one of these:

Lift Reserve Indicator

http://home.hiwaay.net/~sbuc/journal/liftreserve.htm
"One of the AOA systems that has been around the longest is the Lift
Reserve Indicator. This unit was developed in the 1970's and has been
offered in a couple of different variations since then. There is
considerable controversy over just what the LRI actually measures and how
it operates, but when the price of the analog unit was recently reduced
substantially, it got my attention. Since the panel of 399SB is rather
unconventional, I had included a small backup airspeed indicator. However,
the AI was never used since I rely on the RMI uEncoder for pitot info, so
I decided to replace the AI with the LRI since it could also serve as a
backup airspeed indicator. The decision was easier since the LRI would fit
in the same space as the little AI and was in the pilot's angle of
vision."

http://www.liftreserve.com/
Company website - InAir Instruments


Montblack