Richard Lamb wrote:
Icebound wrote:

".Blueskies." wrote in message
t...


Interesting, delta P between two sources, one more or less pointing
forward and one more or less pointing downward.




Basically a stall horn, with the lowered pressure activating a meter
instead of a sound-producing reed. As the pressure falls at the horn,
the needle swings deeper toward the red.


Are we sure that the sensor is a pressure type sensor?

The A-4 Skyhawk uses a paddle type vane on the side of the aircraft's nose.
I'm assuming a simple potentiometer is attached to the vane to read
position.
Very straight forward mechanical approach.

There were/are 2 variations of the system you describe. The one on the
A-4, T-39 etc do have resistance strips and switches inside the can on
the otherside of the skin from the vane. The one I have only has
switches. I don't know what it came off of. I am going to modify it to
synchro or resistance depending on how energetic I feel.

Dan, U.S. Air Force, retired