Friend of mine just landed his fine airplane gear up.
   How about all you single chip microcomputer programmers out
   there     build a gear up landing alarm.

   If the RPM is below 4000 and during the last three
   15 seconds consecutive periods the altitude has
   steadily decreased and the gear is still up turn
   on the alarm.

   Paul Lamar ...No rotor no motor.


I have been getting more interested in one of these:

http://www.advanced-control-systems.com/Products/AOA/aoa.html

"The AOA Professional includes a gear position warning
system, which says "Landing Gear" when the gear is not down
for landing."

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