Ed Cesnalis Posted January 30, 2021 Report Share Posted January 30, 2021 I'm replacing my Tru--Trak servos with Dynon. I'm assuming I want SV42 for the 55 in-lb tourqe. I don't know if I should get the standard output arm or the extended output arm. Any help? Quote Link to comment Share on other sites More sharing options...
Jim Meade Posted January 30, 2021 Report Share Posted January 30, 2021 In my 2007 CTSW I used SV32s with the standard output arm for the pitch and kept the capstan part of the Tru-Trak roll servo. It was a real nuisance getting the roll servo back in but if I remember correctly Tom Baker gave me some hints. I can send some pictures in a day or two if that would help. It's freezing rain today so I'm not planning to go to the airport. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted January 31, 2021 Author Report Share Posted January 31, 2021 Thank you Jim, I would like to see the pictures. Should I get one with standard arm and one with capstan? What about more torque with an SV42 or SV52? Quote Link to comment Share on other sites More sharing options...
Jim Meade Posted February 2, 2021 Report Share Posted February 2, 2021 I'll try to get picture but it will be at least a day. If I remember right, I talked to Stein at SteinAir and the Dynon salespeople about the appropriate torque. As you know, there are reasons to avoid too much torque. Can you tell the torque of the Tru-Trak you are replacing and use that information to inform your choice? How about Arian Foldan at FDUSA? I wonder if he'd know the torque requirement? Or maybe one of the Gutmans at Airtime Aviation? I use the capstan drive off the old Tru-Trak drive. I don't know if the capstan drive on the Dynon is the same or maybe has a different radius of swing. It's been a couple of years. Sorry I'm not of much better help. I'll try to get more info for you Tuesday evening if I can. I think Arian also offered some suggestions on getting the capstan servo back in place. Quote Link to comment Share on other sites More sharing options...
Jim Meade Posted February 5, 2021 Report Share Posted February 5, 2021 My servos are 32s. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted February 12, 2021 Author Report Share Posted February 12, 2021 Arian was able to help. I bought Dynon SV42 servos with more torque than the SV32. I got one with a standard output arm and the other with the Dynon Capstan. I'm expecting the servos to bolt right in, perhaps needing to change a screw to flathead. The Dynon AP74 controller looks good in the panel and is more functional than the TruTrak head it replaces. When I want to upgrade to Skyview I will have the right servos. Sarasota Avionics has the best deal and selection. $725 / servo. They drop shipped overnight from a location local to me. Quote Link to comment Share on other sites More sharing options...
Jim Meade Posted February 12, 2021 Report Share Posted February 12, 2021 Arian is a good guy. I had to drill new holes for the pitch servo. The roll servo bolted right in but was a real close fit to slide in to place. I benefited because I kept the capstan drive from the TruTrak servo. I've found my SV32s OK but don't argue if Arian recommends 42s. I've been happy with my SV servos. Quote Link to comment Share on other sites More sharing options...
GrassStripFlyBoy Posted February 12, 2021 Report Share Posted February 12, 2021 3 hours ago, Ed Cesnalis said: I got one with a standard output arm and the other with the Dynon Capstan. Ed - I think there are fella's around here who would love to buy your TruTrak servos especially complete with the Capstan, that will offset a chunk of this outlay too. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted February 12, 2021 Author Report Share Posted February 12, 2021 That's good to know, thanks Quote Link to comment Share on other sites More sharing options...
johnnyjr Posted March 5, 2021 Report Share Posted March 5, 2021 Ed I'd love to hear about the swap as I am about to do the same one my CTSW. Thanks for digging into which servo is the right one. Looking forward to updates as you progress. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted March 5, 2021 Author Report Share Posted March 5, 2021 I have all the parts and the shop is ready for me next week. I'm also getting a EchoUAT with gps glare shield mounted; my GDL 50 is getting mounted and wired; my Aera 760 is replacing my 496. I'm doing it without cutting the panel and instead using an Airgizmo 496 cover and a ball mount and bare wire kit to put the 760 on an arm above the 496 with an extension so it gets a foot closer to me than the panel location. Visually it will hide the 496 and carb heat / cabin heat controls and a take-off check list. Quote Link to comment Share on other sites More sharing options...
johnnyjr Posted March 25, 2021 Report Share Posted March 25, 2021 On 3/5/2021 at 11:43 AM, Ed Cesnalis said: I have all the parts and the shop is ready for me next week. Any update Ed? Curious what your thoughts are after you get some time with the AP. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted March 25, 2021 Author Report Share Posted March 25, 2021 34 minutes ago, johnnyjr said: Any update Ed? Curious what your thoughts are after you get some time with the AP. The shop doing the install has been rescheduling for too long. I'm hoping they start tomorrow Quote Link to comment Share on other sites More sharing options...
johnnyjr Posted March 26, 2021 Report Share Posted March 26, 2021 Good luck Ed. Hope it goes well once they get going. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted April 2, 2021 Author Report Share Posted April 2, 2021 Dynon Servos with upgraded torque are in and wired. Aera 760 almost fits if mounted horizontally so we are going with it almost in the panel. GDL 50 is getting mounted and wired. EchoUAT is being installed with a glareshield mounted gps and antenna Dynon AP74 replaced the TruTrak head Hard part is done, rest is cake according to the shop doing the install. Quote Link to comment Share on other sites More sharing options...
johnnyjr Posted April 2, 2021 Report Share Posted April 2, 2021 Looks/sounds like good progress Ed! My Dynon Trutrak swap took a turn this week. I've decided to leave the TT servos and upgrade the head to the new xCruze 100, all the futures of the Dynon plus VS adjustment (Dynon AP does not allow that on the fly). Swapping/upgrade cost head is $650 and only requires a single pin on the connector be relocated, no panel work, no servo swap and no costs associated with that part of the install. Estimating 1.5 to 2 hours labor should get me back in the air. Also ordered the GNC-355 this week, getting closer to an IFR trainer!! Quote Link to comment Share on other sites More sharing options...
Big Flapper Posted April 3, 2021 Report Share Posted April 3, 2021 Could you elaborate on the upgrade package, I'm probably going to go that direction also. I see on AS only the entire package is offered. Thanks Tom Quote Link to comment Share on other sites More sharing options...
GrassStripFlyBoy Posted April 3, 2021 Report Share Posted April 3, 2021 The Correct Source for TruTrak Support - Autopilot/Traffic Watch - CT Flier Forum This link contains the contact info for doing the upgrade / replacement. Quote Link to comment Share on other sites More sharing options...
GrassStripFlyBoy Posted April 3, 2021 Report Share Posted April 3, 2021 And be sure to swap the pin as it's the 12+ feed wire, I've heard it will toast the new unit if not switched, regardless it won't work until power input moves location. This will require the appropriate terminal removal tool to remove from connector body, available for a a few bucks on eBay. Quote Link to comment Share on other sites More sharing options...
GrassStripFlyBoy Posted April 3, 2021 Report Share Posted April 3, 2021 Lastly - depending on what version legacy product you're upgrading the power input may be at the new location. I bought two older systems, the Digiflight was old location, the Digiflight II VS was newer power pin. I learned this as I used the older wire harness on a newer head. Quote Link to comment Share on other sites More sharing options...
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