Jump to content

What are these green vectors on my ND?


Recommended Posts

Hello,

I'm currently landing at LGAL with a VOR approach. I have turned on VOR/ADF on the map/EFIS and now I suddenly have these vectors on my ND. I have never noticed them before, does anyone know what purpose they have?

After flying around a bit it appears that if V1 and V2 are at 90° I'm aligned correctly, but for what is then A2 good?

 

Kind regards
Alex

 

image.thumb.png.dd79f8d80524f84f2459384e540f6bf9.png

Edited by kingsnugget
Link to comment
Share on other sites

2 hours ago, kingsnugget said:

Hello,

I'm currently landing at LGAL with a VOR approach. I have turned on VOR/ADF on the map/EFIS and now I suddenly have these vectors on my ND. I have never noticed them before, does anyone know what purpose they have?

After flying around a bit it appears that if V1 and V2 are at 90° I'm aligned correctly, but for what is then A2 good?

 

Kind regards
Alex

 

 

 

Hi there

 

when VOR/ADF map/ctr map mode is selected

 

V1 & V2 represents the radial to VOR1 and to VOR2 elected stations respectively (vor1 seems to be tuned to your approach station thus pointing ahead while vor 2 is tuned to  different station)

A1 & A2 represents the relative bearing to tuned ADFs (a1 is not shown because whatever you have tuned has no active signal while adf2 does)

 

please note v1, v2, a1 & a2 may or may not be shown based whether they have an active signal actually.



hope this helps

  • Like 2
Link to comment
Share on other sites

1 hour ago, mmerelles said:

 

Hi there

 

when VOR/ADF map/ctr map mode is selected

 

V1 & V2 represents the radial to VOR1 and to VOR2 elected stations respectively (vor1 seems to be tuned to your approach station thus pointing ahead while vor 2 is tuned to  different station)

A1 & A2 represents the relative bearing to tuned ADFs (a1 is not shown because whatever you have tuned has no active signal while adf2 does)

 

please note v1, v2, a1 & a2 may or may not be shown based whether they have an active signal actually.



hope this helps

Thanks, thats all I need to know :)

Link to comment
Share on other sites

In addition - the bearing lines for ADF 1 and 2 (they are superimposed on the picture) will always point to "90 degree relative bearing" - i.e. to the right - when they receive no signal. Opposed to the VOR receiver the ADF receivers have no logic to discern wether they receive a strong enough signal. So it is up to the pilot to determine if the indication of "90 degree to the right" is a valid QDM or simply means "no reception".

Cheers, Jan

 

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...