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AP disconnect

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    AP disconnect

    So here I am drilling along in my trusty C-118A between Willow Run (KYIP) on my way to Bangor (KBGR) using VORs for navigation. After about an hour, the AP decides to quit. The AP Mechanical Disconnect lever is in the on position but the Gryo Pilot switch has been turn off for some reason. Up to this point, I have made several successful course changes as I pass the various VORs on my chosen path. I usually switch from LOC to Gyro about 5 miles before the VOR and initiate a course correction about 1.5 miles before the VOR. I have changed the VOR frequency and adjusted the OBS for the new course just before I start the course correction. Then I switch the VOR frequency and wait until I capture the new course on the VOR before switching to LOC. This method generally works until the AP decides to punt. Then its difficult to re-engage the AP. Any ideas why the AP disconnects? What's the procedure to re-engage the AP?

    Thanks in advance,

    Jim Driskell

    Usually disconnects because of a hardware spike or something external.

    Re-connect is same as connect. Fully disengage everything, and then bring it back up. Ensure that your hardware trim axes are centered before these steps.
    Kyle Rodgers
    PMDG Developer Emeritus


      I fly the DC-6 a lot and haven't had any issues. I'm coming up on 500 hours. It will disconnect if I accidentally hit the turn knob or move the controls. To get it to reconnect I turn everything associated with the A/P off and start over with engaging. The wings must be level and the turn knob must be centered.

      I don't use the FE and the one thing I'm really proud of is I've gone over a hundred hours without screwing up one of the engines. ROFL
      Bode Bridges
      I Earned my Spurs in Vietnam


      • Lanica
        Lanica commented
        Editing a comment
        100 hrs, no FE without ruining an engine! Ye be the Man!!!

      Are you kidding? I wouldn't fly without some FE help. It's like having your Dad with you!


      • DDowns
        DDowns commented
        Editing a comment
        I'm with Bode on this one, the only time I used the AFE was during beta tests for the purpose of testing function; otherwise, I never use it. I don't have as many hours in the DC6 as him but I've been flying props all my life so that helps.