FIELD: aeronautical engineering. SUBSTANCE: coaxial propeller includes front and rear blade hubs with blade angle hydraulic control mechanisms. Each hub is provided with power source of working fluid. Method of control of coaxial propeller includes delivery of working fluid at variable pressure from regulator at normal regulation modes. At fast change of blade angle, control chambers of hubs are disconnected from regulator and power source of working fluid contained in each hub is placed in operation. EFFECT: enhanced efficiency. 20 cl, 4 dwg
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