Pilot - Tail Wind Vector Calculation
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Pilot - Tail Wind Vector Calculation
This should be a really simple question, but:
During a flight do you calculate the tail wind component to give you an idea of fuel burn etc...
I was speaking to a BMI pilot about sticking a few extra gauges on the Airbus ECAM cruise page, and the TWC gauge was suggested.
He mentioned (and like an idiot I forgot to write it down) the calculation as something like: GS-TAS or TAS-GS.
Is that the rough method, can anyone please clarify?
Many thanks,
Robbie
Farnborough College of Technology
Aeronautics Department
During a flight do you calculate the tail wind component to give you an idea of fuel burn etc...
I was speaking to a BMI pilot about sticking a few extra gauges on the Airbus ECAM cruise page, and the TWC gauge was suggested.
He mentioned (and like an idiot I forgot to write it down) the calculation as something like: GS-TAS or TAS-GS.
Is that the rough method, can anyone please clarify?
Many thanks,
Robbie
Farnborough College of Technology
Aeronautics Department
Try this, http://www.aviation.org.uk/excel/wv-fixed.xls
Tailwinds have the same direction as the aircraft's velocity, therefore it would be positive. TAS + (+)TW = GS [> TAS.]
With headwinds they're opposing aircraft velocity's direction, TAS + (-)HW = GS [< TAS.]
Tailwinds have the same direction as the aircraft's velocity, therefore it would be positive. TAS + (+)TW = GS [> TAS.]
With headwinds they're opposing aircraft velocity's direction, TAS + (-)HW = GS [< TAS.]
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Thanks for that, so essentially the basic resolution is TW=GS-TAS
For a head wind u would therefore end up with a -'ve result. The gauge we are working on will have a 'flag' to indicate HW or TW.
Thanks again,
Robbie
For a head wind u would therefore end up with a -'ve result. The gauge we are working on will have a 'flag' to indicate HW or TW.
Thanks again,
Robbie