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整体式火箭冲压发动机导弹系统采用无喷管固体燃料助推器,比用一般可抛喷管具有许多优点。这些优点包括,消除了破片的危害,简化了设计,提高了可靠性和性能。缩尺寸和全尺寸发动机的长期设计经验表明,无喷管助推器使用一个长径比为3.5的药柱,在性能上将比得上可抛喷管系统,而如果使用更大长径比的药柱,则无喷管发动机的性能将能提高15％。本文还给出一般设计规则和限制。
Integral rocket ramjet missile systems using no nozzle solid fuel booster than the general can be thrown nozzle has many advantages. These benefits include eliminating the hazards of fragmentation, simplifying design, improving reliability and performance. Long-term design experience with downsized and full-size engines shows that a nozzleless booster that uses a grain of 3.5 length-to-diameter ratio will be comparable in performance to a throwaway nozzle system, whereas with a larger aspect ratio Of the grain, then no nozzle engine performance will be able to improve 15%. This article also gives general design rules and restrictions.