thunderturk Posted December 11, 2009 Share Posted December 11, 2009 (edited) rudder flight control system has a problem while auto pilot on. during flight on otupilot rudder pedastal control' rudder flactuating. we did everyting for exampe rudder rigging and all compenent autopilot system checked. we havent had anything. if possible could you tell me any suggestion. aircraft model c-130b Edited December 29, 2009 by thunderturk Quote Link to comment Share on other sites More sharing options...
bobdaley Posted December 11, 2009 Share Posted December 11, 2009 I am not much help with your problem, but I was wondering if you might have a picture of 61-0963 in Turkish colors. We have three pictures of it in the Gallery in US markings but none in Turkish. Thanks Bob Quote Link to comment Share on other sites More sharing options...
AMPTestFE Posted December 11, 2009 Share Posted December 11, 2009 What version of the autopilot do you have? Quote Link to comment Share on other sites More sharing options...
Zaherk Posted December 11, 2009 Share Posted December 11, 2009 We had a similar problem. We changed servos, did rigging, changed the boost pack, clean connectors and checked the wiring. In the end if I remember correctly(about 5 years ago) it was either a Yaw damper computer or a Flight computer problem. I will find out and come back to you. Did it start all of a sudden or after you changed components due to other auto pilot problems? Quote Link to comment Share on other sites More sharing options...
Guest Posted December 12, 2009 Share Posted December 12, 2009 Thunderturk, is this 61-0963? [ATTACH]692[/ATTACH] Quote Link to comment Share on other sites More sharing options...
bobdaley Posted December 12, 2009 Share Posted December 12, 2009 looks like 4524 00991? Bob Quote Link to comment Share on other sites More sharing options...
DC10FE Posted December 12, 2009 Share Posted December 12, 2009 I'm not sure which one it is, but, for an air show support airplane, it could certainly use a bath!! Don R. Quote Link to comment Share on other sites More sharing options...
thunderturk Posted December 12, 2009 Author Share Posted December 12, 2009 (edited) thanks everbody for interesting in my aircraft problem. Edited December 29, 2009 by thunderturk Quote Link to comment Share on other sites More sharing options...
thunderturk Posted December 13, 2009 Author Share Posted December 13, 2009 (edited) it doesn't have flatuation problem during manual flight, it occurs when auotpılot engaged and we can see small flactuation on pedastal control at rudder channel. and our pılots said rudder flactuation problem sometimes occur not evertime . aircraft has flown for example 20 sorties . no reprot any problem then. again it has rudder autopılot flactuation reported. aircraft model C-130B STILL FLYING.IT HAS BASIC AOTUPIOT SYSTEM. IT DOSENT HAVE FLIGHT COMPUTER .:( Edited December 29, 2009 by thunderturk Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted December 14, 2009 Share Posted December 14, 2009 Can or have they engaged the ailerion and elevator and left the rudder off? The E4 had lots of test points and cant remember too much about it...sounds like a servo from what I remember. Quote Link to comment Share on other sites More sharing options...
Herknewbie Posted February 15, 2010 Share Posted February 15, 2010 Thunderturk, As you can see by my tag, I'm new here:)......and was wondering if you've got a fix to this problem. I see it's been awhile since anyone posted on this item. We are currently working on a Mexican AF E model with the E-4 system and had the same problem. We R&R'd the servo control unit and so far so good. Quote Link to comment Share on other sites More sharing options...
rdenn_58 Posted February 16, 2010 Share Posted February 16, 2010 Does problem fluxuate to both sides of zero rudder like it's hunting for zero point? If so, usually the rudder feedback in the amp. If it feels like the fluxuation goes to one side of zero then goes back to zero and goes back to the same side as before, check cables at servo for proper torque and tension. If that's ok, check rudder output at amp for equal drive on both sides of zero. If not, replace amp. Quote Link to comment Share on other sites More sharing options...
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