In Kansas, the location would probably make burning very hard as you cannot drift smoke over an airport. I guess "normal" burning rotations are site-by-site specific. Also, they are somewhat a function of your goals with the vegetation. In areas with higher rainfall, the rotation is shorter. In more xeric climates, it is much, much longer. It is somewhat unique to NWSG grasslands as those plants evolved under the influences of fire and grazing and the growth points of the plants are below ground where they are protected from the fire effects. I'm sorry that is not a more specific answer, but I would have to include the site specific information as well as the owner's goals in order to come up with the ultimate plan. Here, a 4 year rotation is about right. In wet periods, it could be shortened to 3. In dry periods, it could be more. What level your woody succession is at and what your goals are for the cover might result in you burning 2-3 years in a row or waiting 8 years before the next fire. How you graze or hay will also influence your rotation. They normally extend the rotation if done properly. On the same site, your rotation might differ depending upon whether your priority was game, cattle, hay, or winter calving. There are many factors to consider. You have to realize that, in the year of the burn, your soil will be exposed to higher temperatures and wind effects that will make the site more xeric. In that same year, the site will have almost 100% solar harvest. This will only decrease in subsequent years as thatch increases and intercepts some of that solar potential.