Robin Meads Posted March 17, 2019 at 12:06 PM Posted March 17, 2019 at 12:06 PM Good morning. I have set up the FMC with speed/alts as per AIP and there are no discontinuities. After takeoff I set the AP and it successfully follows the waypoints (altho it does lose them later, but that is another problem). My question here is why does the Xplane default 737-800 not keep to the FMC defined altitudes ? I set the main track at 8000 ft, but it climbs to over FL20. I have tried setting the required alt on the longer distance waypoint to 8000B, but it still climbs and does descend when it gets to or near to the waypoint. Any thoughts gratefully received. Link to comment Share on other sites More sharing options...
Robert Fersch Posted March 17, 2019 at 02:25 PM Posted March 17, 2019 at 02:25 PM Check that you have a vertical mode selected on the autopilot. VNAV, FLCH, Altitude Hold. Link to comment Share on other sites More sharing options...
Robin Meads Posted March 17, 2019 at 05:48 PM Author Posted March 17, 2019 at 05:48 PM Thanks Robert I had both VNAV and LNAV on. It followed LNAV, but ignore VNAV Link to comment Share on other sites More sharing options...
Andreas Fuchs Posted March 17, 2019 at 07:40 PM Posted March 17, 2019 at 07:40 PM Get the freeware ZiboMod 737-800 and it will work. Cheers, Andreas Member of VATSIM GermanyMy real flying on InstagramMy Twitch streams of VATSIM flights and ATC Link to comment Share on other sites More sharing options...
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