TWO-STAGE ROCKET Russian patent published in 2004 - IPC

FIELD: rocketry, applicable in construction of small-sized rocket shots. SUBSTANCE: the rocket has a separable booster engine coupled to the aft part of the sustainer stage. A cavity is formed between the rear end face of the sustainer stage and the front part of the engine, and a through hole is made on the side surface of the sustainer stage casing before the engine communicating with the mentioned cavity through a duct positioned inside the casing of the sustainer stage. EFFECT: reduce disturbances of the rocket sustainer stage at separation, and as a result-enhanced reliability. 2 dwg