FIELD: aviation. SUBSTANCE: invention refers to field of complex test of pickups of automatic control system of aircraft. It is most significant for in-flight test of velocity pickup, pickup of angle of attack, pickups of angular velocities and pickups of overloads along axes of body axes system. Gear includes four adders, five multipliers, three squarers, functional converter and unit of square root extraction. With their aid comparator compares differences of vectors of overload acting on aircraft measured and calculated by reading of pickups with its value known beforehand. If this difference differs from known value comparator operates warning of failure of pickups of automatic control system. EFFECT: enhanced authenticity of detection of failure of pickups without excess of hardware on board the aircraft. 2 dwg
