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光纤制导导弹以低速低空飞行为特征。一般飞行时间为2min或更长。因而给设计低成本的主级推进装置带来一些困难。推进这些导弹的节省能量的方法就是使用助推—滑翔交替的多脉冲火箭发动机。由于助推时间仅占总飞行时间的一个很小的百分数,所以推进装置的信号特征低,特别是使用无烟双基推进剂时。对于射程大于15km的导弹,将需要4个助推阶段,每段燃烧时间约为2s。可以把火箭发动机设计成由4个单个的推进剂药柱、点火器和隔网组成的整体药柱。这种单块式的设计共进行了8次静态试验,其中包括一次安全试验。有4次试验是4脉冲全程序,每次脉冲时间间隔为30s,均已成功。这种紧凑的整体式设计提供了多种用途,而不仅仅只限于光纤制导导弹。
Fiber-guided missiles are characterized by low-speed low-level flight. The general flight time is 2min or longer. Thus creating some difficulties in designing low cost primary propulsion devices. The way to save energy for these missiles is to use a boost-glide multi-pulse rocket engine. Since boost time represents only a small percentage of the total flight time, the propulsion device has low signal characteristics, especially when using smoke-free double base propellants. For missiles with a range greater than 15 km, four booster phases will be required, each burning for about 2 seconds. The rocket engine can be engineered as a monolithic column of four individual propellant grains, igniters and screens. This monolithic design carried out a total of eight static tests, including a safety test. There are 4 tests are 4-pulse full program, each pulse interval of 30s, have been successful. This compact, monolithic design offers multiple uses, not just fiber-guided missiles.