The weight characteristics of the aircraft, including the location of the center of mass, has a direct and important impact on its stability and control. For example, air dropping is one of those cases in which weight characteristics are subject to considerable changes. Today, the development of algorithms for accurate estimation of weight characteristics has flourished both on-line and off-line. Therefore, it is important to develop the means by which kinetic-based estimation algorithms can be tested. The device should be efficient both in terms of mechanical performance and Implementation capability. To do this, we have to design an outline of the machine, which has the same dynamics as a...