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Altitude hold (Read 685 times)
jmwiley77
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Altitude hold
Aug 1st, 2023 at 12:48am
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Is anyone else having an issue with the UPS 767F not maintaining altitude?  I have tried two flights now with the cruise set for FL370 and FL350, and the plane will never hold that setting.  I have tried using LNAV and V/S, and both result in the same issue.  The plane gets to about FL350 and then descends, then climbs back and forth.  It is impossible to do a complete flight.  Has anyone else noticed this?  I am on the Xbox S Series.  I have flown with the DHL and LATAM Cargo versions and have not had the same issue.
  
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jmwiley77
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Altitude on Approach
Reply #1 - Aug 5th, 2023 at 5:27pm
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Why do these planes refuse to maintain altitude when on approach?  Fix your product or remove it from the market!!  It is impossible to fly an approach with the autopilot taking over and descending you at 5000 fpm, then climbing, ignoring inputs from the VS or altitude hold.  I can not be the only one who has this issue.  I refuse to buy another CS product.
  
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Kubar
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Re: UPS Altitude hold
Reply #2 - Sep 12th, 2023 at 4:40am
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Exactly the same problem I am having. Have tried several flights now and it's impossible to get it to fly a localiser/glideslope approach. I have also found whilst cruising on LNAV, it will suddenly veer off course for no reason.

  
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Captain Sim
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Re: Altitude hold
Reply #3 - Sep 12th, 2023 at 10:17am
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jmwiley77 wrote on Aug 5th, 2023 at 5:27pm:
Why do these planes refuse to maintain altitude when on approach?

The 767 autopilot/FMC fidelity is identical to the default 747 one.
If it's not in you case, then we need more info on the issue.
  
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