Vnav and speed intervention.

[Lorenzo.D]

I,i bought this beautiful plane recently. I saw some tutorial and read the first flight pdf...i have a problem.

On takeoff i can't activate vnav before the cruise altitude.

On cruise altitude i can activate it.

On discent after td i can't activate speed intervention ti manage speed in vnav. Windows 7 64bit

X plane 10.51

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[Lorenzo.D]

Only i have this problem with vnav?

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[Litjan]

1 hour ago, Lorenzo.D said:

Only i have this problem with vnav?

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Yes.

No, really - you are doing something wrong but it is impossible to determine what exactly from your post. I suggest watching the tutorials on autopilot and VNAV use. Note that VNAV predictions on descent are not calculated correctly in many cases for now (we plan to improve that in the future) - but for climb and cruise it should work ok.

You say that you can´t activate speed intervention in descent - but speed intervention is not installed in this aircraft, in fact there is not even a button for it in the cockpit. This confuses me....are you sure you are using our plane and X-Plane?

Cheers, Jan

 

Edited May 13, 2017 by Litjan

[Lorenzo.D]

The problem was that some point dosen t have the altitude. I added altitude to that point and the vnav function.

For the speed intervenction i thinked that also this 737 has it.

On vnav discent i cant manage the speed?

Sorry for the not correct english and thanks .

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[Lorenzo.D]

The fmc sometimes don t add the flightlevel at some point. That is the problem also if i add cruise level .

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