The Multiaxial Panel Test System was designed and constructed at the Institute for Aircraft and Lightweight Construction at the TU Braunschweig. It is used to test large lightweight structures under multi-axis cyclic loading. For this purpose, six independently controllable hydraulic cylinders with a static nominal force of 630kN to 2.0MN are built into the machine. Additionally, the amplitude and phase position can be set as required. Time signals and modal operation of the cylinders are also possible. Through suitable storage of the load introductions to one another, both horizontal and vertical shear loads can be introduced into the test field at the same time as compressive or tensile loads and thus any biaxial load combination can be applied to a test field.