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  #1  
Old 05-16-2020, 04:08 PM
R7237 R7237 is offline
 
Join Date: Dec 2009
Location: Savannah, GA
Posts: 103
Default Dynon vs TruTrak AP

I have a non-touch AFS 5600 that I need to add an autopilot to the panel. I am in the “panel” portion of the built, not a flying airplane. My initial thought was to use the TruTrak Gemini AP thru the ARINC adaptor. The plane will have a remote mount Val NAV 2KR. I was not intending on installing an IFR navigator and only use the GPS off the AFS system. I’m trying to decide if I should upgrade the 5600 (probably $2k) and buy Dynon servos and control head, or just buy the TruTrak. As I have never flown an AP before, I’m not sure if one AP is more capable than the other. I do want the ability to use the AP to fly approaches.

Last edited by R7237 : 05-16-2020 at 04:16 PM.
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  #2  
Old 05-16-2020, 04:17 PM
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RONSIM RONSIM is offline
 
Join Date: Feb 2008
Location: Largo, FL
Posts: 1,049
Default Just an opinion, but

although I have a 5600T and a Vizion 385 that just work wonderfully, since you have not committed to servos yet, I would just go with the AFS/DYNON system -- the integration would be very smooth and Rob and the Dynon folks would be a great resource.

Ron
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IO360, 180HP/CS, AFS 5600T, D10A, G650, G430, G327, ADS-B, VIZ385 AP
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  #3  
Old 05-16-2020, 05:30 PM
Jpm757 Jpm757 is offline
 
Join Date: May 2013
Location: Sherman, CT
Posts: 891
Default

Quote:
Originally Posted by RONSIM View Post
although I have a 5600T and a Vizion 385 that just work wonderfully, since you have not committed to servos yet, I would just go with the AFS/DYNON system -- the integration would be very smooth and Rob and the Dynon folks would be a great resource.

Ron
Ditto to Ron's comment.
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Jake
RV6 #20477 completed 1991 sold.
RV7 #72018 N767T first flight 11/21/2017 350+ hrs.
IO-360M1B MT 3 blade, Dual AFS 5600 QUICK Panel.
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  #4  
Old 05-16-2020, 05:42 PM
BobTurner BobTurner is offline
 
Join Date: Dec 2011
Location: Livermore, CA
Posts: 7,176
Default

The ?integrated? autopilots work well, and tend to be about $1K cheaper than the stand alone ones. But, for actual IMC work, the stand-alone units do offer an additional layer of backup. Up to you to decide.
BTW, don?t overlook Trio. They make a great autopilot.
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  #5  
Old 05-16-2020, 05:54 PM
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rleffler rleffler is offline
 
Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
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Quote:
Originally Posted by BobTurner View Post
The ‘integrated’ autopilots work well, and tend to be about $1K cheaper than the stand alone ones. But, for actual IMC work, the stand-alone units do offer an additional layer of backup. Up to you to decide.
BTW, don’t overlook Trio. They make a great autopilot.
Servos on the Sv-network (Dynon/AFS), you can move the Master EFIS pretty quickly should the PFD fail. There are also a couple other minor advantages over the Trutrak heads.

My Vizion and servos, as well as a Gemini PFD May be up for sale shortly.
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Last edited by rleffler : 05-16-2020 at 06:22 PM.
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  #6  
Old 05-16-2020, 06:19 PM
R7237 R7237 is offline
 
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Location: Savannah, GA
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Default

Quote:
Originally Posted by rleffler View Post
Servos on the Sv-network (Dynon/AFS), you can move the Master EFIS pretty quickly should the PFD fail. There are also a couple other minor advantages advantages over the Trutrak heads.

My Vizion and servos, as well as a Gemini PFD May be up for sale shortly.
If it helps you, I would be in the market for them. That would be a nice setup for me. Guessing your upgrade is due to a touch upgrade?
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  #7  
Old 05-16-2020, 07:42 PM
BobTurner BobTurner is offline
 
Join Date: Dec 2011
Location: Livermore, CA
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Quote:
Originally Posted by rleffler View Post
Servos on the Sv-network (Dynon/AFS), you can move the Master EFIS pretty quickly should the PFD fail. There are also a couple other minor advantages over the Trutrak heads.
You're correct: part of the $$/risk equation is that a second EFIS or air-data computer can be similar to the cost differential for a self-contained autopilot. Some different failure modes to be considered. But it appeared to me that the OP is talking about a single EFIS, so a non-integrated autopilot does mitigate against some, but not all, failure modes. OTOH since he specifically stated that he is not interested in a TSO'd gps navigator, all approved approaches (VOR/ILS) have to go thru his EFIS to drive his autopilot, be it a Dynon, Gemini, or Trio. Bottom line: For IFR work, the entire system - redundancies, backups, failure modes - needs to evaluated to see if it is with in the PIC's tolerance for risk.
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  #8  
Old 05-16-2020, 08:11 PM
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Mike S Mike S is offline
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
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A few years back, I had a failure in one of my first gen GRT screens-----the one that drove the A/P.

I lost the ability to follow a GPS driven course, but the internal magician inside the TruTrak head would still hold altitude and heading.

Just something to consider.
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  #9  
Old 05-16-2020, 08:57 PM
titanhank titanhank is offline
 
Join Date: Aug 2007
Location: Friendswood, Tx
Posts: 435
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I have the vizion 385 autopilot, it is rock solid and it flies a beautiful approach. The only way it will get removed is that i totally lose my mind and redo the panel with an all garmin g3x setup.
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  #10  
Old 05-17-2020, 07:23 AM
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N941WR N941WR is offline
 
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Location: SC
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One very nice thing about having an integrated AP is that it knows what your attitude is and can right the plane, should you engage it after an upset.
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