When flying a rocket on a heavier motor than simulated, what should be checked about the CG?

In rocketry, the center of gravity (CG) is a critical factor influencing a rocket's stability and performance. When a rocket is equipped with a heavier motor than what was initially simulated, it's essential to determine the balance point again with the actual installed motor. The reason for this is that a heavier motor will shift the CG, potentially affecting the rocket's stability during flight.

Ensuring the correct placement of the CG helps to maintain proper aerodynamic characteristics, allowing the rocket to fly straight and controlled. If this is not addressed, the rocket might experience unstable flight characteristics, which can lead to recovery failure, crashes, or other safety issues.

Thus, recalibrating the CG with the heavier motor installed is crucial for safe and successful launches.