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christoph.both(at)acadiau
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 Posted: Thu Mar 16, 2023 2:53 pm Post subject: Best practices, Autopilot install MOD 75 & MOD 76 |
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Hello Europa Community:
I am looking at upgrading my existing GRT SX-200 EFIS equipped aircraft to autopilot capabilities.
What would be the best practices, from lessons learned and MOD 75&76 prescribed, to install the two lateral/vertical command GRT servos?
While the lateral component control from a servo installed under the right seat seems rather straight forward, I am a bit concerned how to best locate and connect the vertical component servo to the CS10 torque tube. MOD76 suggest complete removal of the existing CS10 torque tube and replace with a CS10/2 version having an actuation horn affixed to. Is this the only (difficult) solution or would a connection to the elevator pushrod or already welded on actuation horn be a solution, without purchasing a replacement CS10/2? Perhaps welding/ riveting a horn to the existing CS10 tube would do?
I have the GRT servos which look very similar to Dynon or Garmin AP new digital servos - any solutions to make a metal bracket or otherwise securely attach the servos to the aircraft would be appreciated? GRT sells metal servo brackets for general installations.
I have a CLASSIC fuselage with original large tunnel.
It was mentioned there could be a conflict with the glider wing brake actuating mechanism for the vertical component of the autopilot installation. EUROPA gliders, was there a solution found?
Thank you,
Christoph Both
Wolfville Nova Scotia, Canada
Europa Classic #223 2013
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h&jeuropa
Joined: 07 Nov 2006
Posts: 645
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| Posted: Fri Mar 17, 2023 3:03 pm Post subject: Re: Best practices, Autopilot install MOD 75 & MOD 76 |
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Christoph,
On the Europa Club website under Bud Yerly Notes, there is a document called Pitch Autopilot Options which gives several suggestions.
About your glider question, we found the mono wheel flap pushrod interfered with the glider spar after the spar was enlarged with the mandatory mod. Our solution was to replace the rod with a push pull cable. We have not completed our glider wings so no idea about interference with the airbrake mechanism.
Jim
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