He's in France. Those are capstan servos, though I can't tell the model number. The Jabiru can only use capstan servos. Since he provided his email address, it seems he expected someone to contact him if they have questions.
Sorry Rhino - not quite true re the Jabiru - I have done a few a/pilot (Dynon & Trio) installs into the “Jabbies” using pushrods. However the jabby is unique re the elevator & pitch trim -
Elevator actuation is via heavy duty push/ pull cable.
Trim is similar & moves in unison with the Elevator (when the Trim friction ‘wheel/ knob’ is backed off) = go figure !! There is NO separate way to operate the trim for the elevator - it’s purely mechanical ie there are NO Trim Tab/s. Maybe they have changed that but I doubt it. A call or email will confirm.
There is no way to have any proper acceptable Trim, as we would expect it, in the Jabiru in its standard form.
Also, the cheaper version (not the teflon lined units) of the actuator push/pull cables for aileron/elevators has an issue that many may not be aware of - the brown cup type seals at both ends of all the cables dry out resulting in friction.
For the elevator you would need the Dynon SV52, or maybe a heavy duty capstan type servo
My suggestions for possible solutions to make an autopilot work in the Jabby -
1. Forget about have any elevator TRIM - & leave the mechanical friction backed OFF otherwise the servo shear pin WILL break or, in the case of the Trio or Garmin, you will get constant slipping regardless
2. Forget Auto Trim - unless someone develops a trim tab setup for the Jabby. I know someone here tried that a long time ago & the result was mediocre.
3. Existing cable maintenance regardless of an a/pilot install =
Measure the effort required to normally move the control stick in each direction.
Back off ALL the external ‘brown’ seals on the cables & knead (push) some silicone grease, like DC 4 & reseat those seals.
Back OFF the cables seals in the cockpit = all the above in item 3. will make a big improvement & should be an ongoing maintenance item. If that has never been done you WILL notice a difference.
IMO the Elevator/Trim arrangement is from the dark ages & has always been about money & how little to spend.
There are other issues IMO however it’s all about the a/pilot to Jabiru fitment - I’ll leave it at that.
Jake.
