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Good day ,

I have enabled fmc calculates V SPeed in the options but it is not doing so. I never had this problem until the most recent update. This is on P3D V4. even if I manually enter some Vspeeds, it still says no V speeds on the PFD. The cg  / trim is stuck at 22. I have a full route  with runway set into the route and legs. I have set flaps to 10. Flight level and weights are set. I'm also having the exact same issue on the 777-200 as well.  I have been flying these two planes for years with the fmc and this is the first time I have encountered this problem? I must be having a brain fart somewhere, lol .

Thank you,

Jefferson Davis

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One thing that can cause this is a defective panel state.  Any chance of trying this with a know good one such as a default?  However, any similarity between a problem in the B744 and one in the B777 is coincidence or pilot error which doesn't sound like the case.

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Right now I  have both the 747 and the 777 in the cold and dark panel state. I will try the default and report back. Thanks for the tip.

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On performance page, cLick on Gross Weight and ZFW and your V speeds will displays.

Mike

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14 minutes ago, Mikelab6 said:

On performance page, cLick on Gross Weight and ZFW and your V speeds will displays.

Mike

Thank you Mike, you solved my brain fart ! I wasn't clicking gross weight, just the zfw. Now I got my V speeds back. I will also say doing  a panel load state all over again helps too.

Good day,

Jefferson

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