BT5 - BT55 Centering Rings

The Estes BT5 - BT55 Centering Rings assortment gives educators and student builders a flexible set of components for creating custom model rocket engine mounts. With 26 pieces in five useful configurations, this package supports hands-on projects involving popular BT5, BT20, BT50, and BT55 tube sizes.

Bring Engineering Concepts Into the Build

Centering rings help position an engine mount tube securely inside a rocket body tube, giving students a practical way to study alignment, balance, and structural design. Educators can use these components to connect model rocket construction with lessons in engineering, measurement, physics, and problem-solving.

Support Creative Student Design

The variety of ring configurations allows students to experiment with different tube combinations and develop original rocket designs. They are also useful for modifying existing rockets, completing repairs, or challenging students to create an engine mount that meets specific project requirements.

A Versatile Resource for Group Programs

With 26 centering rings included, this assortment works well for classrooms, after-school programs, camps, youth organizations, and rocketry clubs. Pair the rings with compatible body tubes, engine mount tubes, and adhesives to create engaging build activities that encourage teamwork, precision, and creative thinking.