In cluster rocketry, how can one minimize the impact of a motor failing to ignite?

The approach of making the holes in the forward centering ring closer to the centerline than those of the aft centering ring is correct because it strategically positions the motors to enhance stability and minimize the adverse effects of potential motor failure. By offsetting the attachment point of the motors in this manner, the design helps to maintain the center of gravity and center of thrust in alignment, thereby reducing the chances of the rocket experiencing destabilization during flight.

In the event of a motor failing to ignite, a well-balanced rocket is less likely to veer off course, which is critical for safe recovery and enhanced performance. This adjustment in motor positioning effectively supports better aerodynamic performance and helps the rocket remain stable, even if one motor does not ignite.

On the other hand, ensuring all motors are of the same type and brand promotes reliability and consistency but does not directly address the issue of a motor failing to ignite beyond minimizing variability. Placing motors closer to the rocket's nose cone for better airflow does not effectively contribute to resolving the situation of ignition failure, as airflow has a minimal impact on whether a motor ignites. Finally, merely increasing the total thrust of the cluster does not solve the problem of ignition failure; instead, it could amplify the consequences should a motor fail