英国的“推进剂、炸药和火箭发动机研究院”(PERME)是在第二次世界大战后建立起来的。该院发展了液体推进剂火箭发动机,随后,又发展了固体推进火箭发动机,后者在战术领域逐渐取得了优势。但液体推近剂,尤其是预包装液体推进剂具有潜在的优点,即:可改变推力,排气无烟,推力随温度变化小,可延长燃烧时间,较好的比冲,抗冲击,适用温度范围宽。此种推进 Britain’s “Propellant, Explosives and Rocket Engine Research Institute” (PERME) was established after World War II. The hospital developed a liquid propellant rocket engine, followed by the development of a solid-propellant rocket engine, which has gradually gained an advantage in the tactical arena. However, liquid propellants, especially pre-packaged liquid propellants, have the potential advantages of being able to change thrust, smokeless exhaust, small changes in thrust with temperature, longer burning times, better specific impulse, impact resistance, Wide temperature range Such advance