When should motor ignitors be installed in a high power rocket motor?

The installation of motor ignitors should occur at the launcher or a designated area for several important safety and practical reasons. This practice minimizes risks associated with handling live ignitors and ensures that the rocket is only prepared for flight immediately before launch.

Installing ignitors at the launcher allows for better control over the environment and conditions surrounding the ignition process. It reduces the likelihood of accidental ignition during transportation or assembly, which can lead to hazardous situations. Furthermore, it aligns with safety protocols that recommend launching activities occur in designated areas where safety measures are in place.

Additionally, this approach helps ensure that the rocket stays safe from any external interference or accidents that might occur if ignitors are installed early in the preparation process. Thus, by waiting until the rocket is at the launch site, the entire operation is conducted under the safest possible conditions, minimizing potential risks associated with ignitor handling and launch preparations.