Wind Triangle

A vector diagram used in flight planning that solves the relationship between three vectors: the wind (direction and speed), the aircraft's true airspeed and heading, and the resulting ground track and groundspeed. By knowing any two of these three vectors, the pilot can solve for the third. The wind triangle is the mathematical basis behind E6B flight computer wind calculations, and understanding it is essential for computing wind correction angles, estimating groundspeed, and planning accurate fuel burns on cross-country flights.