Direction and Speed of wind in PVI-800

[Mikoyan89]

Hello,that's a question for developers.

Reading the manual, it seems that the PNK-800 avionic component can calculate wind speed&direction. But with dynamic weather i see no changes in the data displayed by PVI-800 in the wind page,or maybe we can read wind changes after long time ,since the weather is dynamic...?

Other than that, the wind speed and direction provided by ATC is slightly different from the PVI-800,even 1 m/s more or less....so,my question is:

Is the PNK-800 actually able to compute wind data,or it only reads wind vector from the mission editor?Thanks

[Luigi Gorgonzola]

Hello,that's a question for developers.

Reading the manual, it seems that the PNK-800 avionic component can calculate wind speed&direction. But with dynamic weather i see no changes in the data displayed by PVI-800 in the wind page,or maybe we can read wind changes after long time ,since the weather is dynamic...?

Other than that, the wind speed and direction provided by ATC is slightly different from the PVI-800,even 1 m/s more or less....so,my question is:

Is the PNK-800 actually able to compute wind data,or it only reads wind vector from the mission editor?Thanks

The PVI is no meteorological computer. It doesn't compute the wind speed and direction, it displays it. This is what the FM says and this is what happens.

 

I just don't know if this information is being uploaded during preparation (maybe along with ABRIS data) or if it is being received through SAT-TLK (or DL).

 

EDIT: In other words. I don't know the sourece of the data.

Edited March 9, 2012 by Luigi Gorgonzola
added tl;dr

[flanker0ne]

I insert myself into the discussion with a question;

 

Besides being a reminder to be consulted later when you need, what does the wind since entered the PVI-800?

What kind of operations the PVI-800 does with that information?

If we change it, even greatly, what changes/happens?

Edited March 26, 2012 by flanker0ne

[effte]

You have the INS, which when properly updated knows your speed, heading and direction of travel. You have yoir air data compiter which knows the speed at which you travel througjh the air.

 

Speed and direction through the air mass. Speed and direction over the ground. The difference is the wind, which the aircraft can tell you.

[flanker0ne]

Yes I though the same at the begining but:

 

1) With Dynamic Weather this value should change accordingly.

 

2) If this value is obtained with some internal PVI-800 calculation, why is editable from the Pilot?

[flanker0ne]

1,5) By climbing the heli, the wind speed and wind direction often change, even a lot in some cases. The value in the PVI-800 should follow those variations if is a result.