Navomatic AF-420A

[Don Nieser]

I have copies of the Navomatic Owners Manual, Parts catalog and he Service Manual available and some parts. Give me a call at 405-503-4686, Don Nieser, Commodore Aerospace Corp or e-mail: nieser.02.337parts@juno.com.

[n86121]

I have become intimate with the navomatic autopilot in my T337D over the years, and have the full install and maintenance manual. AND I'm a nerd. Let me know if I can help.

The switch (GYRO ON/OFF) on the back of the control head
should be OPEN, only for setting the zero / null positions on the servos
to temporarily disconnect 'error' signal from the gyros,
then for normal operation, CLOSED
to re-connect the error signals coming from the DG heading gyro and horizon.

If you need some unofficial ways to zero out the servos, let me know....

[rmorris]

any tips or hints are always appreciated. if you don't feel comfortable posting them, drop me an email at rmorris@agsi.us

on your post above, you mention OPEN and CLOSED...which one is on and which one is off (the two positions on the switch ?