kingsnugget Posted October 24, 2021 Report Share Posted October 24, 2021 (edited) 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 Edited October 24, 2021 by kingsnugget Quote Link to comment Share on other sites More sharing options...
mmerelles Posted October 24, 2021 Report Share Posted October 24, 2021 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 2 Quote Link to comment Share on other sites More sharing options...
kingsnugget Posted October 24, 2021 Author Report Share Posted October 24, 2021 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 Quote Link to comment Share on other sites More sharing options...
Litjan Posted October 25, 2021 Report Share Posted October 25, 2021 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 1 Quote Link to comment Share on other sites More sharing options...
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