Unable to get the autopilot working properly |
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rolypolyman
Check-In Staff Joined: 16 May 2017 Points: 3 |
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Posted: 16 May 2017 at 6:59am |
I just bought the DC-8 a few days ago and the vertical aspects of the autopilot don't seem to work properly. I found some references like "pilot notes" but none of the info seems to work.
1) I engaged the autopilot through the 3 switches in front of the yoke and the servo switch all the way forward to autopilot, but vertically the airplane doesn't respond, and just climbs or descends randomly. There's no way to set a vertical speed. 2) I can't figure out how to set a target altitude. This is not described anywhere in the manual. 3) There's a gauge above the autopilot showing what looks like speed, altitude, and vertical speed, but there's no way to manipulate it, not even through center-clicking and mouse wheel. The only thing that changes on here is vertical speed through the wheel switch, but it has no effect on what the airplane does... the vertical speed set here and the airplane vertical speed don't ever match. Any information would be appreciated. |
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Martyn
Just Flight Staff Development Manager Joined: 31 Mar 2008 Location: Huntingdon, UK Points: 7615 |
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Are you using the Series 10-40 or Series 50-70? A service pack is currently being produced for the Series 50-70 which will replace the autopilot.
Thanks Martyn
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Martyn
Just Flight Ltd |
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rolypolyman
Check-In Staff Joined: 16 May 2017 Points: 3 |
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Oh sorry, I'm using only the 50-70. I have mostly been working in the DC-8-63.
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Bob57
Check-In Staff Joined: 24 Nov 2011 Location: Vancouver Isl. Points: 41 |
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First off this is a very basic autopilot compared to modern planes. Page 41 of the manual shows the Altitude reminder number 20, set that at your chosen altitude say 31000. Insure switch number 4 in the manual page 42 is all the way up to "Autopilot". Number 2 left click to increase pitch to climb set at about 1800 FPM. Monitor your climb speed on your VSI Number 12 page number 12. Manage throttles for airspeed. once at chosen altitude adjust pitch control to hold, center position. I hope this helps Bob
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