Jump to content

VNAV YOYO


blindfinder

Recommended Posts

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

  • 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

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. Privacy Policy & Terms of Use