FIELD: rocketry. SUBSTANCE: proposed solid propellant control unit of rocket-ramjet engine is placed between gas generator and afterburning chamber and it contains nozzle insert and rod with movable central body. Nozzle insert has rear wall forming, together with insert, and intermediate space accommodating central body and rod secured on rear wall. Nozzle holes are made in rear wall to deliver gas generator combustion products into afterburning chamber. Central body and rod form control space connected to channels passing through rear wall and rod. EFFECT: increased combustion efficiency in afterburning chamber and improved reliability of solid propellant control unit. 2 cl, 2 dwg
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