In this study, the ways of analysis to evaluate best-fit landing gears for an aircraft considered is explicitly conducted. The configurations are designed then analyzed in order to obtained optimum landing gears designed. The dynamic equations of the wheelbase and wheel track which described the aircraft can be laterally stabilized on the ground are given. The dimensioning of the shock absorbers which are the basic components of the landing gears and stroke, the dimensions and pressure of landing gear wheels are obtained. Landing gear components and links are exposed important loads during the touch-down. These external and internal loads are applied to the models. Under the effect of these loads the structural behavior of the landing gear components are analyzed.