Jump to content

Sign in to follow this  
Skrimps

VNAV/VCALC?

Recommended Posts

Hello,

Just started using the GTN 750 and have a quick question. During flight w/ VNAV enabled I get some message about it not being supported for this leg of the flight. What does this mean? I did some research on it and found a few threads here about it but it looks like at some point it was changed from VCALC to VNAV. Is it possible to get VNAV working (really only would like ToD calculation) or can I revert back to VCALC?

Share this post


Link to post
Share on other sites

Hi,

this is all detailed in the RXP GTN User's Manual, "Settings" chapter!

Hint: AFMS Settings.


Jean-Luc | reality-xp.com
This message from Reality XP is protected by a disclaimer: reality-xp.com/aboutrealityxp/email.html

Share this post


Link to post
Share on other sites
On 7/16/2019 at 11:08 AM, RXP said:

Hi,

this is all detailed in the RXP GTN User's Manual, "Settings" chapter!

Hint: AFMS Settings.

Hi,

I also like to know enabling 750 VNAV for X-plane (Carenado Premier 1A), as I have trouble to find the section you mentioned above.  I didn't find AFMS keyword from the user manual:

http://reality-xp.com/support/trainingcenter/userguides/manuals/Reality%20XP%20GTN%20Touch%20XPlane.pdf

Search VNAV also returned nothing.

Share this post


Link to post
Share on other sites

I found the VNAV settings in the user manual, Google search didn't return the latest version.  My settings under AFMS are:

  Vertical Navigation Type: VNAV
  Transition To Approach: Enabled
 

Still, passing TOD displayed on the map, the airplane doesn't begin to descend.

Share this post


Link to post
Share on other sites
7 hours ago, swuphoto said:

I found the VNAV settings in the user manual, Google search didn't return the latest version.  My settings under AFMS are:

  Vertical Navigation Type: VNAV
  Transition To Approach: Enabled
 

Still, passing TOD displayed on the map, the airplane doesn't begin to descend.

Hi...

I believe the VNAV/VCALC feature on the GTN is - advisory only - in nature - you have to command the AP or fly the descent...

Regards,
Scott 

  • Like 1

imageproxy.png.c7210bb70e999d98cfd3e77d7

Share this post


Link to post
Share on other sites

Hi...

Disregard - I see VCALC is new to the GTN software set...

Regards,
Scott


imageproxy.png.c7210bb70e999d98cfd3e77d7

Share this post


Link to post
Share on other sites
11 minutes ago, scottb613 said:

Disregard - I see VCALC is new to the GTN software set...

VNAV is a new feature since GTN 6.50, VCALC was the default and only available option before.

In both cases, there is no vertical coupling with the A/P at this time unless there is a Glide Path signal (VDI on the HSI)

  • Like 1

Jean-Luc | reality-xp.com
This message from Reality XP is protected by a disclaimer: reality-xp.com/aboutrealityxp/email.html

Share this post


Link to post
Share on other sites
 
 
 
 
13 hours ago, RXP said:

In both cases, there is no vertical coupling with the A/P at this time unless there is a Glide Path signal (VDI on the HSI)

Is this temporary limitation? I saw a video (by Rmag) on Youtube, the pilot explains how GTN 750's VNAV works if "VNAV that is enabled when paired a the G500 TXi/G600 TXi, G500/G600 or G5".

Share this post


Link to post
Share on other sites

@swuphoto Hi, can you post the link to the video?

I believe this is limited to both having a Garmin EFIS, and a Garmin Autopilot (which gets its input from the EFIS, not from the GPS).


Jean-Luc | reality-xp.com
This message from Reality XP is protected by a disclaimer: reality-xp.com/aboutrealityxp/email.html

Share this post


Link to post
Share on other sites
7 hours ago, RXP said:

@swuphoto Hi, can you post the link to the video?

@RXP

Hi,

In the video description he mentioned GTN 750 along isn't sufficient.  I wish to understand is that limitation only applies to real aircraft?  As in the sim, many aircrafts equip autopilot equipments (e.g. (Premier 1A/Pro line 21)

  • Like 1

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.


    2%
    $715.00 of $25,000.00 Donate Now
×
×
  • Create New...