Fill out Dynon Certified Survey please
 

Click on the “add my plane” at the top right

https://www.dynoncertified.com/

If enough of us Skymaster owners do it maybe they’ll do it.

Just filled it out.

Done. I want one.

I've bugged them at Airventure for a few years and recently started to pester them on Facebook (in addition to filling out the form). From what I can tell now that they have the PA34 approval they are going to attempt a broader STC to light twins like the single engine approval. AP approvals will still need to be on a per airframe basis but I guarantee this community could provide enough interest to make it worth while, especially given the lack of AP options for the 337.

That would be great! The old Nav-O-Matic is on its last leg and it would be hard to put in $20k for 20 year old technology to replace it........

Done. I want one too.

Done. I certainly like the looks of the system.

Done! I'm ready for new autopilot options.

Done.
I'd happily use this instead of G500's
An autopilot would be great!

Highly recommend Autopilots Central Kansas
 

Mine just finally died. No response to heading, or pitch.

I replaced all the capacitors with modern, higher temp, higher voltage components.

I noted in some cases a remarkable difference between what was specified in manual and what actually came out. Cessna probably realized that back when the airplane was made, but updating the manuals with FAA approval probably too complicated.

In most cases the capacitors are used to DC isolate AC signals between amplifiers.
In these cases a bit more is better, because of lower impedance at the useful frequency.

A few serve as power supply filters. More is better.

Even basic modern components have higher temperature and higher voltage. All good.

Autopilot was still screwball. No responses.

I even bought spares on ebay, but couldn't get it to behave right.
Got ONE flight with an aileron servo, then it failed.

It took a while, Autopilots Central has the entire bench setup to test, calibrate etc, and actually know what they are doing.

Randy said 'he might have his brain wiped' after doing mine. Assuming he hasn't, I was impressed with their understanding and error chasing.

I simply removed the 'computer' (located above rearmost seats in headliner), both wing servos (pull the servos but leave the mechanical bits in place), and the control head by your knee and sent them in. Pretty easy to do.

Remember to wire tie electrical cables etc out of the way so they don't hangup on anything.

Once re-installed, works just fine fine.

Slight porpoising on altitude hold was easily eliminated with gentle tweak to increase 'altimeter gain' adjustment on computer, as manual suggested in post-installation setup.