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Radar keeps in ACM (displaying "ACM Box") after acquirering a target from ACM


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Posted (edited)

Steps to reproduce:

- acquirering a target in ACM mode (Boresight Mode)

 

Observed: Radar keeps ACM mode (displaying "ACM Box" under PB7)

Expected: Switch from ACM mode to STT mode

 

Source: DSC Hornet documentation page 298:

 

Single Target Track (STT) Mode

STT is entered at the completion of manual or automatic target acquisition.

Pressing the TDC designate button when TDC cursor is over an RWS hit. ==> Works fine

Pressing the TDC designate button twice when the TDC cursor is over an LTWS trackfile. ==> Works fine

Use of AACQ mode or ACM mode. ==> Does not work, ACM Box is still displayed after acquirering a target in ACM mode on radar screen => Rader does not change to STT mode with normal/expected STT behaviour in which "SCS LFT" should make the LDDI SOI if ATFLIR is displayed.

 

 

 

grafik.png

Just to explain wny I expect that SCS LFT" should make the LDDI SOI if ATFLIR is displayed. :

 

I would interpred page 78 of the hornet documentation (20.5.2021)

 

grafik.png

 

like this for the case that the radar mode is STT and TDC is not assigned to LDDI:

 

Left [Left Alt + ,]:

{

   If (TDC priority is already assigned to the LDDI) // false

   {

      if (LDDI is radar display)

      {

         If (radar is tracking)

         {

            commands break lock (not un-designate).

         }

         else if (TDC is over a radar return)

         {                     

            commands radar to track mode STT    

         }

      }

      else If (TGP FLIR is displayed on the LDDI) // makes only sence here under "TDC priority is already assigned to the LDDI"; Might be placed wrong in the documentation!?

      {

         it will command a track in either A/A or A/G.

      }

   }

   else if (In A/A ACM sub-mode) // false, because automatic acquesition has changed radar mode to STT and ACM has been left regarding page 298 as descriped in the beginning of this bug report

   {        

      commands wide acquisition (WACQ) to radar system.

   }

   else // Default:

   {

      Assigns TDC priority to the LDDI.  // Should be done!

   }

}

 

ACM_keeped.trk


Edited by Topper81
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  • Topper81 changed the title to Radar keeps in ACM (displaying "ACM Box") after acquirering a target from ACM

You need to debox ACM (PB7) to regain control of where the TDC goes, otherwise the aircraft wants to keep providing ACM modes to you.  

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It's not a bug. All ACM locks are STT locks in the first place so you are in STT mode if you lock something with any of the ACM modes. Also ACM condition will stay active until manually exited one way or another. And as long as ACM condition is active it will override the other functions of the sensor control switch.

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