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Guest jase439

pss Flight managment computer and Vnav

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Hi,I have a question about the Vnav function with the PSS FMC. The fmc calculates the optimal and maximum cruising altitude. But how do I get Vnav clims automatically from the cruising FL to the optimal FL?Hope someone knows.Thanks

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It doesn't. The MCDU only provides you with optimal cruise altitude information. Nothing automatic occurs on the Airbus in this regard (or on a Boeing for that matter). You must explicitly change the cruise altitude to a new target altitude and invoke a selected or managed climb mode.Cheers,J

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