Assuming steady flight of the kite downwind of the tether anchor point (i.e. at zero azimuth angle) the velocities and forces acting on the kite can be calculated analytically. The effect of varying reel-out velocity, cross wind velocity and tether elevation angle is illustrated in the following JAVA applet. Click the image to start the applet (depending on your internet connection it might take between a few seconds and a minute to load the applet for the first time).