Introduction of Some Processibility and Propellant Characteristics for Large-Sized Solid Rocket Motor

There are two major groups in solid propellants, the composite propellant and the double base propellant, used for rockets. The famous “Pencil Rocket” developed by Prof. Itokawa of Tokyo Univ. used double base propellant, that is made from nitrocellulose and nitroglycerine. Recently, composite propellants are widely used for large-sized solid rocket motors, since that have good burning property, good mechanical property, processibility, higher stability and long shelf-life. In this paper, some characteristics of composite propellants are briefly introduced.