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  #1  
Old 06-24-2019, 10:02 PM
flyboy1064 flyboy1064 is offline
 
Join Date: May 2018
Location: Pelham
Posts: 11
Default RV-4 Autopilot

preparing to install an autopilot in my -4 and looking for help on hardware. the plan is to stay all Dynon as it already has a D180 in the panel. Most of the posts on the topic in the forum are fairly old and hoping to get some current advice. looks like everything is readily available with the exception of the roll servo hardware. I'd like to install it in the cockpit as this seems like the easier option with the wingtip being riveted on. Does anyone offer the roll servo hardware that includes the clamp for the torque tube ? Didn't see it on any of the websites including Dynon, Trutrak or Stein.

another question is would you install the AP74 or just utilize the autopilot in the D180 ?
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John Sutton
RV-4 / 160 HP
1946 8A Luscombe
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  #2  
Old 06-25-2019, 07:14 AM
FinnFlyer FinnFlyer is online now
 
Join Date: Aug 2018
Location: Bell, FL
Posts: 156
Default

I made my own from a piece of 0.032 alum. The guy who sold me a used Dynon servo kindly sent me this:
https://drive.google.com/open?id=1ol...Wf-zh26NJUVfyP

No clamp. Just a bent piece of steel or alum screwed or bolted to the upper slanted flat piece of the stick assembly with three screws/bolts. Similar to this:
https://drive.google.com/open?id=1Oi...M4UyPWZh0G9TMB

Servo is mounted under the right F-428 removable step, making inspection easy.

Finn
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N46AZ RV3-B Mazda 13B FI -- Bought -- Flying
N993FL RV-3A Mazda 13B NA 575 hours
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  #3  
Old 06-25-2019, 01:14 PM
Pdtofly Pdtofly is offline
 
Join Date: Jan 2012
Location: Reno, NV
Posts: 240
Default RV-4 Roll mount

What I did is buy the TruTrak RV-4 roll servo mount. The Dynon servo mounts perfectly in it. I don't know if they sell it anymore, but call them and see.

Below is the link to the install plans for it.

https://cdn.shopify.com/s/files/1/21...92066230149458

Good luck.

Brian
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