FIELD: rocketry. SUBSTANCE: solid-propellant engine includes housing with load-bearing envelope, inner heat-protective coat made in form of evenly located overlapping circular layers of tapes, sealing coat located between heat-protective coat and load-bearing envelope where load-bearing envelope is spirally wound from high-modulus organic fibre threads and heat-protective coat consists of several alternating layers of cloth of sealing phenolic-elastomer film with circular layers of gauze glass fabric tape located between them; gauze glass fabric is impregnated with phenolic-elastomer adhesive. All layers of heat- protective coat are covered with circular layer of low- modulus strands and glass fibre threads; direction of laying of all circular layers of heat-protective coat coincides with direction of flow of powder gases. EFFECT: enhanced reliability. 2 dwg
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