Abstract: In a simulator for training airplane pilots comprising a base positioned on he ground (24), a platform supporting an airplane equipment station of which the interior reproduces the interior of a real cockpit (17) and an assembly of jacks (15) and scissors (16) disposed between the base (24) and the platform and actuated by means of a hydraulic control system, the platform is replaced by a cross-braced self-supporting structure in the form of a basket (18), the base of which coincides with the base of the simulated cockpit (17) and the upper edge of which is located approximately at the height of the lower edges of the windows of the simulated cockpit (17), the jacks (15) and the scissors (16) connecting the base to the structure (18) being fixed in at least three places in proximity to the upper edge of the said structure (18) and being directed toward the base (24), mounted on the ground, in spaced apart relationship from said structure.