A regular flight of every conventional aircraft includes a climb and a descent. Climb and descent are two other parameters in aircraft performance evaluation, although the climb is much more significant. The fastest climb often requires the smallest amount of fuel and thus will result in a more available fuel for cruising flight. This flight condition has a specific climb speed and a specific climb angle. Climbing with any airspeed other than the minimum power airspeed will result in a lower climb rate other than the maximum rate of climb. Consider an aircraft in a climbing flight where the pilot employs its maximum available thrust and has a constant airspeed. A very beneficial approach in the analysis of the climb performance is to use a graphical technique. In the climb analysis, there are other parameters of interest such as “time to climb” and “fuel to climb”.