二次世界大战后,在德国V-2导弹技术基础上,以液体推进剂为动力源的导弹首先得到发展,此后高能固体推进剂和新型复合材料研制成功,大幅度地提高了推进剂比冲,减轻了火箭的消极重量,提高了发动机的运载能力和质量比。六十年代中期,固体火箭制 After the Second World War, based on the German V-2 missile technology, the missile propelled by liquid propellant was firstly developed. After that, the successful development of high-energy solid propellants and new composite materials greatly improved the specific impulse of propellant , Reducing the negative weight of the rocket and improving the carrying capacity and mass ratio of the engine. Mid-1960s, solid rocket system