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Rocketry Glossary
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Centering Ring
A ring of paper, cardboard, plywood, or other material which connects the motor tube to the airframe, ensuring that the motor remains parallel to the rocket's main axis. A motor tube requires at least two centering rings. More powerful motors sometimes require more.
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