FIELD: units for test of machines and mechanisms in simulated flight conditions. SUBSTANCE: according to the first variant, the pneumatic support features by the fact that it is furnished with an additional ring-shaped flexible member of the diaphragm type located in the axis of the pneumatic support, cylindrical adapter, extension piece made in the form of a perforated cylinder, and a flexible hinge; the upper end face of the adapter is connected to the second edge of the main flexible member, the lower end face of the adapter is connected to the extension piece, and through the member it is linked with the upper edge of the chamber, and the lower end face of the extension piece is linked with the chamber base through the flexible hinge. According to the second variant, the pneumatic support features by the fact that it is furnished with an additional ring-shaped flexible member of the diaphragm type located in its axis and a cylindrical adapter, and the flexible shoulder is made in the form of pneumatic stops installed the housing and adapter in the plane perpendicular to the pneumatic support axis; the upper end face of the adapter is connected to the second edge of the main flexible member, and the lower end face of the adapter is connected to the upper edge of the chamber through the additional flexible member. EFFECT: enhanced efficiency. 3 cl, 5 dwg
