# wind triangle

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## wind triangle

[′wīn ′trī‚aŋ·gəl]
(aerospace engineering)
A vector diagram showing the effect of the wind on the flight of an aircraft; it is composed of the wind direction and wind speed vector, the true heading and true airspeed vector, and the resultant track and ground speed vector.
References in periodicals archive ?
To find ETAS, do a wind triangle on a flight computer supporting the calculation.
But if there's an issue with the electronic gizmos, it's that they have taken away the art of visualization, which allows us to see how the calculations are derived by means of wind triangles and the like.
To explain why this is so, one needs to understand the wind triangle.
The wind triangle, as its name implies, has three basic components in its simplest form.
The idea of a headwind when our desired course and the wind direction directly oppose each other is a relatively easy one to grasp: We don't need a wind triangle to understand that if the air in which we are flying is moving at 20 knots in a direction exactly opposite our heading, groundspeed will be reduced by 20 knots.
Instead, most pre-flight planning these days is conducted online, and well-refined algorithms compute the results of a wind triangle for us, providing projected groundspeed and magnetic heading to steer, all in a nice, concise flight log we can print at the FBO and carry with us to the airplane.
Then we must use a wind triangle to calculate the effect of the forecast winds aloft.
You should enter your estimated groundspeed you calculated from performing the wind triangle.
I did a reverse wind triangle, using the E6-B's instruction book and I mechanically followed the steps.
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