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Last response on this topic, because you seem to have already decided that wiring can't be the problem, no matter what the symptoms show, but I'd bet that the issue here is a bad connection in the Skyview network wiring. MOVING the A/P head back and forth causes a disconnect - it's not EMI/RFI...

Charlie, if physically moving the A/P panel causes it to go offline, that's pretty good indication that some connection somewhere is suspect. That doesn't seem to have anything to do with the pitch trim system. Probably/possibly the Skyview network connections.

I have a "Strong" Pitch trim system in my COZY MKIV. It does NOT draw more than 2A (hence the callout for a 2A breaker in the wiring). I do not have a "TRIMAMP", nor do I need one. If you're using a 2A CB and it doesn't pop when you run your trim, then YOUR trim motor isn't drawing more than 2A...

This is correct - no converter is necessary to use capacitance senders with the Dynon EMS unit. Just follow the manual's instructions for capacitance senders.

I don't know what installation manual you're looking at (GPS175 or HDX) because 5-2 of the HDX manual refers to something else entirely, and there is no 5-2 in the GPS175 install manual. But in any case, the GPS175 manual, on page 86 and 88, Figures B-1 and B-2 in Appendix B, clearly show that...

Since an RNAV GPS approach is not dependent on any ground based equipment, it certainly wasn't the airport's issue. You don't state what GPS navigator was driving the VNAV (or HNAV), but the problem could be in one of three places - the GPS navigator, the Skyview connection to the navigator, or...

Fascinating. I have an HDX, and was using the HDX Pilot's Guide. Per my second bullet point of the first posting, the "Extended Runway Centerlines" section on page 5-48 says: When the Flight Plan origin, a waypoint, or the destination is an airport, an extended runway line is shown on the map...

Thank you very much - is that in the PIlot Guide somewhere that I missed? Is there some way go to a runway without doing a "direct" - IOW, in a flight plan?

This has been discussed at l east once before, but no answer was directly forthcoming. Using ONLY the Skyview (no external navigator), one can program VNAV in the MENU > MAP SETUP > VS REQ'D menu in two ways - one, to arrive at the final waypoint at a certain altitude above the waypoint at a...

Only here - you meant to say "zero volts" at the bottom (being ground, and all), not 12V at the bottom (in which case absolutely nothing would happen on any of the circuits :-).

So I use this: https://lightwarelidar.com/products/sf11-c-100-m in an automatic landing gear extension circuit on my COZY MKIV. It's part of a circuit that will lower the LG if I'm >40 KIAS, <90 KIAS, <10% throttle, and <400 ft. AGL. I'm using it as a switch, but it does have an analog voltage...

I do trust that I can override them, and the torque limit of the servos is set so that can be accomplished while never slipping during normal use (and I can always break the shear screw, if it comes to that). But the last thing anyone needs, as you found out, is to have someone/something...

Ahem. If you review the Lancair ES General Wiring Document: https://documents.lancair.com/aircraft_documents/ES-ESP/General_Wiring.pdf you can see that the airplane uses "MAC" servos - now "Ray Allen". The fact that the document recommends 5A fuses/CB's to protect the WIRING to the servos is...

Well, have you read the specifications for the TrimAmp on page 23-17 of the install manual? The maximum motor supply is 3A (not really sure what the point of the thing is, if all it does is increase the maximum motor current from 2A to 3A - that's hardly a large increase). The total current...

Some terminology here - I think by "servos" you're referring to the trim motors, which are almost always just 12V DC motors - not "servos". I also think you're conflating two functions here - first, the "Auto-Trim", which merely trims out the force on the A/P servo, _IF_ you enable the...

I've never had the A/P go nuts on me (ever, in about 15 years or so between the D10A and the Skyview HDX), but still - it only needs to happen once, and you're always hand flying the takeoffs and landings anyway.

Sure. I have a power switch for my servos (I turn them off for takeoff and landing), so they're not on, powered, or talking on the bus. The trim system through the A/P controller panel works fine.

Interesting again. I wonder why that would be. I know that in tractor airplanes, thrust is destabilizing and in pushers (aft pushers, not on top) thrust is stabilizing, but I have no idea whether that holds true for airplanes with jets on the wings. In any case, I've got a COZY MKIV canard, so I...

Interesting. I've been performing some glide tests recently and using IAS mode for both climb and descent. On a calm day, the IAS mode will hold +/- 3KIAS in the climb, and within +/- 1 KIAS in descent. This in a COZY MKIV. In turbulence, pitch control (IAS, VS, Altitude) sucks, though - the...

Yes. The GPS2020 antenna is powered from the EFIS, not separately, per page 8-7 of the installation manual.