Amateur building guide motor rocket
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Description:Categories of Hobby Rocketry The term "non-professional rocketry" is so broad that it is typically broken down further in general use. There are four common categories used to describe the sub-groups: Model Rocketry is what many of us did as children. The classic model rockets are those made by Estes, Centuri now defunct and Quest. Estes and Quest rockets are available in most hobby shops and larger toy stores. These rockets use pre-manufactured, inexpensive, usually black powder motors up to "D" size.