How does the Kestrel 4500s crosswind calculator work?
The 4500 features a built-in digital compass that allows you to measure the wind speed and direction. In order to display the crosswind, simply point the Kestrel down the runway or target and set the reference heading. Then hold the 4500 into the wind and it automatically calculates the crosswind with respect to the reference heading. It also calculates the headwind/tailwind the same way (headwinds are positive values and tailwinds are negative).
