Hi Dick the two gyros I have and still use are the now discontinued hobbico piezo gyro. Actually I think all modern gyros are in reality piezo gyros, using a piezo generated current from a magnetic flux gate to sense a movement about the selected axis. I am however no expert. I also have some testing experiance back in the ninetys with a unit called BTA (I think) that was a real motor driven gyro and was designed in the middel east. It was hugh, very expensive and impratical but did do as intended.

These were inexpensive units marketed through hobbico for fixed wing use. even with full gain they are incapable of full control throws and I beleve that is undesirable anyway.


The whole point of any stability augmentation system is speed, not wild control movement in an effort to catch up after the aircraft is already departing wildly and to do this far faster than the human pilot can react and to never need large control throws. That is how perfect appearing takeoff runs are acheved.

I cannot quantify any specific setting or engineering benchmark only you can do that by test with your particular product and application.

Alway start with a low percentage of gain and work up until you feel you are fighting with your rudder imputs. If the gain is too high the result will be a hunting back and forth in yaw at high speeds. No big deal slow down, land and tone it down some.

I have never felt the need to be able to turn the things off in flight as I really don,t know they are there untill I get those four engines throttling up unevenly on takeoff and then you really know its there.

John