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  6. 13,450lbs - Significance on CG display?

13,450lbs - Significance on CG display?

Scheduled Pinned Locked Moved Starship
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  • C Offline
    C Offline
    C-FJDH
    wrote last edited by
    #1

    I can't find any reference to this in the manual, and hoping someone here can fill me in. 13,450lbs - is this a balance limitation at weights above this number? Do I balance in front of or behind the mark?
    Thanks all.

    Screenshot 2025-11-08 174452.png

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    • hughesj2H Offline
      hughesj2H Offline
      hughesj2
      wrote last edited by
      #2

      Above max landing weight if your text is yellow I believe...So not necessarily to do with C of G....

      Page 130

      1. Payload Data
        This text area contains real-time weight and balance information, as well as range and endurance estimates. The toggle switch above the payload data block can be used to switch units from gal/lbs to L/kg. The maximum gross weight will appear in red when it exceeds the maximum gross ramp weight, and yellow when it exceeds the maximum landing weight.

      Cheers
      James

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      • C Offline
        C Offline
        C-FJDH
        wrote last edited by
        #3

        It looks to be a rear CG limit when above 13,450lbs. Played around with the balance and the CG indicator turns yellow when behind this point.

        Screenshot 2025-11-09 091757.png
        Screenshot 2025-11-09 091810.png

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        • hughesj2H Offline
          hughesj2H Offline
          hughesj2
          wrote last edited by
          #4

          Ahh yeah I see what you mean now....I was confusing with the main payload top left...StarshipCoG.jpg

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          • hughesj2H Offline
            hughesj2H Offline
            hughesj2
            wrote last edited by hughesj2
            #5

            So I think you're assumption about 13450lbs CoG is probably correct, however, the CoG indicator still goes yellow under that gross weight as well? So maybe there's more to it?
            Either way I'd say avoid the yellow if you can and if you can't be prepared for some pitch up moments?

            StarshipCoG2.jpg

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            • hughesj2H Offline
              hughesj2H Offline
              hughesj2
              wrote last edited by
              #6

              OK found the 13450lbs significance in the RW AFM...
              StarshipCoG3.jpg

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              • B Offline
                B Offline
                bjratchf
                wrote last edited by
                #7

                Looks like if you are over 13,450lbs- (13450-14900) you can go all the way to the red line, but under that (below 13450) you're restricted to a tighter CG limit.

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                • C Offline
                  C Offline
                  C-FJDH
                  wrote last edited by
                  #8

                  Interesting! But it leads to a question on the implementation of the marker in the tablet.
                  As I read it, the full aft limit is available at all weights. The forward limit is what changes at higher weights. 307 inches aft of datum (farther forward) at lighter weights, but the forward limits is pushed rearward 3 inches for weights above 13,450. I think the marker in the tablet should be near the forward CG limit, not the rear.

                  hughesj2H 1 Reply Last reply
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                  • C C-FJDH

                    Interesting! But it leads to a question on the implementation of the marker in the tablet.
                    As I read it, the full aft limit is available at all weights. The forward limit is what changes at higher weights. 307 inches aft of datum (farther forward) at lighter weights, but the forward limits is pushed rearward 3 inches for weights above 13,450. I think the marker in the tablet should be near the forward CG limit, not the rear.

                    hughesj2H Offline
                    hughesj2H Offline
                    hughesj2
                    wrote last edited by
                    #9

                    @C-FJDH Yeah not fully clear to me..@Black-Square, Nick can you enlighten us when (if) you get 5 mins? 🙂

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