Jump to content

Sign in to follow this  
mokeiko

VNAV and TOD

Recommended Posts

Hi everyone,

I am at eg. FL380 and 2 Min. Before TOD I change ALT to next way point ALT. Am I supposed to left click the ALT knob at TOD? The reason I asked is because the aircraft does not descend at TOD, it just keeps flying level. 

I am following the tutorial and it does not mention if I’m supposed the left click the ALT knob or not. What do you guys do? Thanks for any help.

fly safe

 


Francisco Blas
Windows10 64-bit 1903 | ASUS Maximus X Apex Z370 |  I7-8700K @ 5.0ghz (delidded) | G.Skill Trident Z DDR4 32GB @ 3200mhz | EVGA GeForce RTX 2080 Ti XC Ultra Gaming | Corsair H115i Pro | Corsair AX1200i | Phanteks Evolve X | Asus PG348Q ROG Swift G-SYNC 34-inch IPS 3440x1440 | Brunner CLS-E | MFG Croswind | Virtual-Fly TQ6 | OS: Samsung 970 EVO 1TB M.2 | XP 11.41r1/11.50b9: Samsung 960 EVO 1TB M.2 | Scenery/Airport/etc.: Micron 5210 14TB SSD Raid0 | Backup: WD Black D10 8TB External

 

Share this post


Link to post
Share on other sites

Hi.

No, you don't have to press the ALT button to descent at the TOD if you have selected a lower altitude normally.

What is the pitch mode displayed on the FMA? It should read VNAV PATH and it is required for the descent to occur automatically at TOD as per above.

If VNAV ALT is displayed instead (which would not normal at this stage) then you need to press ALT.

If anything else is displayed, verify the VNAV is engaged as it is required for the automatic descent with a lower level selected on the MCP.

 

 


Romain Roux

204800.pngACH1179.jpg

 

Avec l'avion, nous avons inventé la ligne droite.

St Exupéry, Terre des hommes.

Share this post


Link to post
Share on other sites

On the right side of the ND you see a magenta display showing the v path relative to your airplane‘s altitude. As long as it is centered and your FMA says vnav path everything is fine. How long have you been waiting until you intervened? The 747 likes to decelerate pretty long before starting its decent on low company indexes... i have noticed that up to 10-15 miles before the nose went down. My vnav path was perfectly centered as the TOD moves closer to the destination when you become slower.


,

Share this post


Link to post
Share on other sites

Thanks guys, I will try another flight this evening.

fly safe


Francisco Blas
Windows10 64-bit 1903 | ASUS Maximus X Apex Z370 |  I7-8700K @ 5.0ghz (delidded) | G.Skill Trident Z DDR4 32GB @ 3200mhz | EVGA GeForce RTX 2080 Ti XC Ultra Gaming | Corsair H115i Pro | Corsair AX1200i | Phanteks Evolve X | Asus PG348Q ROG Swift G-SYNC 34-inch IPS 3440x1440 | Brunner CLS-E | MFG Croswind | Virtual-Fly TQ6 | OS: Samsung 970 EVO 1TB M.2 | XP 11.41r1/11.50b9: Samsung 960 EVO 1TB M.2 | Scenery/Airport/etc.: Micron 5210 14TB SSD Raid0 | Backup: WD Black D10 8TB External

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    18%
    $4,720.00 of $25,000.00 Donate Now
×
×
  • Create New...