MatthewMarshall

Hi Jan, Sorry for the late response, I'll try and get a video of the situation by the end of this week for you. Thanks, Matt

Hi Litjan, thanks for the quick response, I can uninstall XPUIPC however I have a lot of addons and plug-ins which rely on the use XPUIPC so going forward how could I use those both together? I disconnected the joystick however we still had the same problem, I can assume this isn’t the case as I don’t have CWS active always just CMD with active pitch and roll modes on the FMA? The weather was set to match real world conditions but, I’ve been in some bad turbulence but never had fluctuations throughout the entire flight in VS. As for the level, I tried many stop altitudes on the climb and descent, the issues is more dramatic at lowers levels I assume because more thrust available etc? As for altitude I flew 2000ft below OPT and the ‘coffins corner’ was about 30 knots. Any ideas going forward?

Hello All, I'm having some issues, during the climb, cruise and descent phase for as long as the AP is engaged, FD on and an active vertical profile is engaged either VNAV, FLCH or VS. The AP commands abrupt unnecessary inputs in pitch, this causes a fluctuation of +- 1000ft in the cruise, changes of upton 2000fpm in the climb and descent. It's basically, constantly snaking. I've tried new XPIUPC a full reinstall and I'm running 1.33 with latest Xplane. Any ideas? EDIT: CWS is not active and joystick is calibrated and centered.