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Propulsion In the previous section we saw the various types of propellants and how the propellants upon burning produced tremendous amount of gases, which were used to generate thrust. In this section we will study the various techniques that can be employed for propelling a rocket. That is the method by which the gases are produced by propellants Let us first start with the meaning of word “propulsion” Well in simple words, it is a method of propelling an object forward and maintaining its motion. Here, in this case it is a method of propelling a space vehicle (rocket) forward. Keeping this definition of propulsion in our mind, let us proceed further and see the Principles on which the propulsion is based.
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