Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
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pmandel
 Post subject: Re: Autopilot Retrofit?
PostPosted: Wed Jun 23, 2021 8:58 am 
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Joined: Fri Oct 25, 2019 8:00 pm
Posts: 68
Just sharing pics to show where Pacific Coast Avionics (KUAO, Aurora OR) installed the TruTrak (now Bendix-King like everything else, unless it's Garmin) pitch servo in N118BC.

Looks like I only shot one photo of the pitch servo installation, and that was before the actual installation. Shows where the clamp is going to wrap around the elevator torque tube. The technician mounted the servo on the floor about a foot ahead of where you see the clamp, then used the shorter rod provided with the xCruze 110 to connect the servo arm to the clamp. Bruce Finney's location of the servo motor (see above in this thread) looks like a better location, possibly.

The roll servo was unchanged by the tech, he reused the one already there which is where it was when I bought the plane from Lee is. I regret I do not have a photo of that installation but it appears to be the same as discussed above (under the pax seat).

Image

Image

_________________
Philip Mandel
N118BC
S/N 957
Beaverton OR


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peterjaypriest
 Post subject: Re: Autopilot Retrofit?
PostPosted: Sat Apr 02, 2022 2:15 pm 
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Joined: Tue May 18, 2021 1:21 pm
Posts: 22
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Location: Elk Grove, CA
For others that are trying to source some bracket for the elevator servo push tube (as I was a few weeks ago...) Here is what I came up with:

I used (3) 2" ADEL clamps around the tube, and those connect to an easily fabricated bracket. Attach the servo pushrod to that bracket, and easy!
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