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  5. ILS inop after start from cold and dark

ILS inop after start from cold and dark

Scheduled Pinned Locked Moved Hawk T1/A Advanced Trainer
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  • W Offline
    W Offline
    Wothan
    wrote on last edited by
    #1

    After having gone through the startup from "Cold & Dark" state, the ILS is inop.

    There are no warning or caution lights lit - ie. all electrical busses seems online.
    Setting the ILS freq and selecting ILS on the TACAN/ILS button does nothing - GS and NAV flags in the HSI are shown indicating that no ILS signal is received.

    Selecting "Ready to Start", and then go through the startup procedure from there, and the ILS will work just fine. Same for "Ready for Takeoff".

    MartynM 1 Reply Last reply
    0
    • W Wothan

      After having gone through the startup from "Cold & Dark" state, the ILS is inop.

      There are no warning or caution lights lit - ie. all electrical busses seems online.
      Setting the ILS freq and selecting ILS on the TACAN/ILS button does nothing - GS and NAV flags in the HSI are shown indicating that no ILS signal is received.

      Selecting "Ready to Start", and then go through the startup procedure from there, and the ILS will work just fine. Same for "Ready for Takeoff".

      MartynM Offline
      MartynM Offline
      Martyn
      JF Staff
      wrote on last edited by
      #2

      @wothan Is the mode selector on the ILS receiver set to ILS or VOR?

      Martyn - Development Manager

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      • W Offline
        W Offline
        Wothan
        wrote on last edited by
        #3

        It is set to ILS

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        • RetiredMan93231R Offline
          RetiredMan93231R Offline
          RetiredMan93231
          wrote on last edited by RetiredMan93231
          #4

          Are you following the startup checklists...? Did you set the AHRS (Leg Panel) to SLV...?

          W 1 Reply Last reply
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          • MartynM Offline
            MartynM Offline
            Martyn
            JF Staff
            wrote on last edited by
            #5

            This will be fixed in the next update. In the meantime please make sure the VHF, UHF and ILS radios are all switched on.

            Martyn - Development Manager

            W 1 Reply Last reply
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            • MartynM Martyn

              This will be fixed in the next update. In the meantime please make sure the VHF, UHF and ILS radios are all switched on.

              W Offline
              W Offline
              Wothan
              wrote on last edited by
              #6

              @martyn said in ILS inop after start from cold and dark:

              This will be fixed in the next update. In the meantime please make sure the VHF, UHF and ILS radios are all switched on.

              Thank You for Your quick reply.

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              • RetiredMan93231R RetiredMan93231

                Are you following the startup checklists...? Did you set the AHRS (Leg Panel) to SLV...?

                W Offline
                W Offline
                Wothan
                wrote on last edited by
                #7

                @retiredman93231 said in ILS inop after start from cold and dark:

                Are you following the startup checklists...? Did you set the AHRS (Leg Panel) to SLV...?

                Yep - but regardless, the ILS should not be affected by the ARHS.

                RetiredMan93231R 1 Reply Last reply
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                • RetiredMan93231R Offline
                  RetiredMan93231R Offline
                  RetiredMan93231
                  wrote on last edited by RetiredMan93231
                  #8

                  Here is an excellent new YouTube video that goes through the entire cold and dark startup process... It even includes some very impressive airshow manuevers at the end! https://youtu.be/TqDILAAc9aA

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                  • W Wothan

                    @retiredman93231 said in ILS inop after start from cold and dark:

                    Are you following the startup checklists...? Did you set the AHRS (Leg Panel) to SLV...?

                    Yep - but regardless, the ILS should not be affected by the ARHS.

                    RetiredMan93231R Offline
                    RetiredMan93231R Offline
                    RetiredMan93231
                    wrote on last edited by
                    #9

                    @wothan said in ILS inop after start from cold and dark:

                    Yep - but regardless, the ILS should not be affected by the ARHS.

                    The HSI requires the AHRS to operate...

                    W 1 Reply Last reply
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                    • RetiredMan93231R RetiredMan93231

                      @wothan said in ILS inop after start from cold and dark:

                      Yep - but regardless, the ILS should not be affected by the ARHS.

                      The HSI requires the AHRS to operate...

                      W Offline
                      W Offline
                      Wothan
                      wrote on last edited by
                      #10
                      This post is deleted!
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                      • W Offline
                        W Offline
                        Wothan
                        wrote on last edited by
                        #11

                        The problem is that all radios needs to be turned on for the ILS radio to work.

                        I had forgotten to turn the UHF (COM 2) Radio on.
                        This should not be necessary in real life, but a fix is comming.

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                        • b3lt3rB Offline
                          b3lt3rB Offline
                          b3lt3r
                          wrote on last edited by
                          #12

                          I have also found that on the ground, ILS will not come alive despite being tuned correctly and all the radios in the correct state. I suspect it' may be because I pre-tuned the freq before setting the radio states. Anyway, the fix for me is simple - change digit 1 by 1 notch and then set back to correct freq and it comes alive.

                          MartynM 1 Reply Last reply
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                          • b3lt3rB b3lt3r

                            I have also found that on the ground, ILS will not come alive despite being tuned correctly and all the radios in the correct state. I suspect it' may be because I pre-tuned the freq before setting the radio states. Anyway, the fix for me is simple - change digit 1 by 1 notch and then set back to correct freq and it comes alive.

                            MartynM Offline
                            MartynM Offline
                            Martyn
                            JF Staff
                            wrote on last edited by
                            #13

                            @b3lt3r That is also fixed in the update

                            Martyn - Development Manager

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