Here I present the very important part of VFR XC planning for every pilot, i.e., computing Wind Correction Angle and Ground speed, and also the Headwind and Crosswind components. The wind/ground speed circle is a vital tool when a diversion is performed (hello, checkrides!). Just print it and take along with you, and whenever using dead reckoning as a navigation method, after determining your heading, quickly correct it for wind and determine your ground speed for fuel calculations. The inner circle represents the wind correct angle while the outer circle the anticipated ground speed.