blindfinder 1 Posted December 23, 2019 Share Posted December 23, 2019 Hello, Is the VNAV descent ball not working on the A330? I can't perform a managed descent because the ball is bouncing up and down. This results in a steep dive of over >4000FPM and can only use vertical speed mode to follow the profile manually. I had the same issue with the smaller buses and wondering if anyone else is experiences this? A330 Version - 1.0.0.4 P3D Version - 4.5.13 Thank you Link to comment Share on other sites More sharing options...
Deputy Sheriffs mopperle 4162 Posted December 24, 2019 Deputy Sheriffs Share Posted December 24, 2019 No, not seen so far. Which Route, which weather conditions (weather engine)? Other flightparameters, like FL, load etc. Link to comment Share on other sites More sharing options...
blindfinder 1 Posted December 24, 2019 Author Share Posted December 24, 2019 Routes: All routes I have done in the USA; each arrival had a STAR and altitude constraints. Same happens if there is no STAR so I don't believe it's tied to the route. FMGC: All altitude constraints were correct in the MCDU before descent. Winds: Happens whether I insert the winds or not, did not make a difference. Weather Engine: ActiveSky for PD3V4 - latest version 7208 Weather Settings: Max Cloud & Wind Turbulence 20%, Turbulence Scale 10%, Enhance Turbulence Off, Realistic Thunderstorm Up & Down Draft Rate Off Flight Level: Any flight level (FL300 - FL390); it starts as soon as I push managed descent. Speed: Cruise at 82 Mach with speed in managed mode. Load: Under Max Landing Weight 160T - 165T Reinstall: Completed, no change. Framerates: Steady >20 Fuel Planner Only with no GSX A330 Version - 1.0.0.4 P3D Version - 4.5.13 Flight Controls: TM Warthog (Calibrated with no issues in manual flight) The ball is steady at first; then as the waypoint gets closer it drops suddenly and the aircraft pitches >4000FMP to chase it. Then the VNAV ball starts to YOYO and descent profile is all over the place. Thank you Link to comment Share on other sites More sharing options...
Aerosoft Aerosoft Team [Inactive Account] 51558 Posted December 24, 2019 Aerosoft Share Posted December 24, 2019 That could be explained by low fps (even momentarily). See Vol 1 of the manuals about that. Link to comment Share on other sites More sharing options...
dx_dave 0 Posted December 27, 2019 Share Posted December 27, 2019 Same boat with me. Aircraft bounces around and won’t hold altitude. This is a true bug Link to comment Share on other sites More sharing options...
Deputy Sheriffs Secondator 643 Posted December 27, 2019 Deputy Sheriffs Share Posted December 27, 2019 Please post the route, arrival, transition and runway so we can check the case by ourselves. Link to comment Share on other sites More sharing options...
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