Which construction technique minimizes the impact of a motor failing to ignite in a cluster rocket?

Utilizing holes in the forward centering ring that are closer to the rocket's centerline is an effective construction technique for minimizing the impact of a motor failing to ignite in a cluster rocket. When the holes are positioned nearer to the centerline, it ensures that the motor's thrust is better aligned with the rocket's center of gravity and voice when ignited. This alignment helps in maintaining stability during the launch phase, as all the motors can share the thrust load more evenly.

If a motor fails to ignite, having the holes closer to the center can reduce the asymmetrical thrust that might occur from a missed ignition. This is because the thrust will be generated more centrally, lowering the risk of unwanted yaw or roll, which could result from one or more outboard motors failing to light.

The other options do not address the alignment and thrust distribution in quite the same way. For example, using larger holes may lead to less structural integrity or reduced airframe control. Similarly, increasing the distance between centering rings can create a longer moment arm, increasing potential instability if one motor fails. Attaching all motors to a single igniter can compromise individual motor performance and may not allow for troubleshooting or correction for a single-failure scenario. Therefore, moving the