FIELD: testing equipment, plants for strength testing of aircraft structures. SUBSTANCE: hydraulic system includes power supply source with pressure and discharge lines, electrohydraulic amplifier, hydraulic cylinder, hydraulic distributors mounted on body of hydraulic cylinder or on separate post, bearing plates anchored on rod of hydraulic cylinder or on tested object. Inlet of hydraulic distributors is connected to pressure line and its outlet carrying adjustable throttle is linked to discharge line. EFFECT: raised reliability of protection of object during tests. 2 dwg
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