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 Headwind with connected IAS Sensor

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T O P I C    R E V I E W
m-a-r-t-i-n Posted - 15/04/2019 : 08:42:34
Hello,

some short questiones:

If I connect a bluetooth Aisspeedsensor to LK8000 will headwind be calculated like:
a) TAS minus Groundspeed or
b) Headwind is Headwindcomponent of latest Wind calculation

If a) is correct, what will be used for final glide calculation?

-) Headwind (always actual if Airspeed is available)
-) Wind coming from latest windcalculation

Thank you and best regards,
Martin






4   L A T E S T    R E P L I E S    (Newest First)
m-a-r-t-i-n Posted - 17/04/2019 : 17:16:43
cool

and is "headwind" used for final glide calculation, or is final glide calculation based on "wind"?
(headwind is currently updated - wind is more difficult to update, because winddirection is more difficult to get)

On the other hand: If I put the Wind manually (because I know, that it will change during gliding) it is better to have it based on wind..
AlphaLima Posted - 17/04/2019 : 14:40:57
Ups Sorry,
you're right (we are not in the else condition):
https://github.com/LK8000/LK8000/blob/fc1ef71b542db53da0a2618652b433ee04c063ed/Common/Source/Calc/HeadWind.cpp#L35
hpronto Posted - 17/04/2019 : 12:14:30
I believe Head Wind is actually IAS-ground speed. I use this for landing as it is easier to read the wind direction in real time.

@AlphaLima maybe you made some confusion with wind calculation alone?

Hugo
AlphaLima Posted - 17/04/2019 : 10:10:44
b!
Having the GPS + airspeed the wind is calculated by a quite accurate modified Kalman Filter. (Wind setting "Both")

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