FIELD: flying vehicles equipped with noise reducing devices. SUBSTANCE: nozzle has cowling, narrowing duct, corrugations, ejector, supersonic panels and air intakes. Nozzle is provided with additional ducts which connect interior of nozzle narrowing duct with ejector. Additional ducts are provided with valves which shut off flow of gas in flying modes when noise-suppression units are not used. Projections of corrugations are directed towards outer side of nozzle and are located between additional ducts; channel of ejector is divided into sections by supersonic panels. EFFECT: reduction of noise level at take-off mode. 13 dwg
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