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  1. JDcluster

    1 or 2 igniters ( per motor) for a 3 motor cluster?

    I usually go with just 1 per motor but, on it's first flight; I got 2 out of the 3 to ignite in my Tri-Star. The motors were about 5 years old; AT DMS I 140. The rocket reach 2,000+ ft on the pair. I was contemplating using 2 per motor but opted not to at the pad. I was afraid that they could...