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Spacecraft Design Dynamics Conceptual Question: If I had an oblate spinning spacecraft (hockey puck shaped) spinning...

Spacecraft Design Dynamics Conceptual Question:

If I had an oblate spinning spacecraft (hockey puck shaped) spinning about it's z-axis (the body z-axis being normal to the top surface).

If I were to add an internal spinning wheel with that spin axis aligned with the body z (therefore a dual spinner spacecraft) does that change the existing stability at all?

My guess is that it makes it even more stable by adding more resilience to external torque, like a bicycle wheel rotated on its side, internal gyro, etc.

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