Being still a relatively new BAR...I am beginning my first venture into clustering, by building a clone of the classic Estes Astron Cobra. Reading articles and reviews by other rocketeers, I often see how these people mention using extra wadding, to compensate for the extra ejection charge of multiple motors. But, I ask...how can this matter? What are the odds of all two, three, or more, motors firing their ejection charge at the same time? Not only would the rated time delay have to be 100% accurate, and consistent...but all the motors would have had to ignite at the same precise moment as well. I would think that in all likelihood, the motors would *not* fire their ejection charge at the same instant. The first charge would deploy the recovery system, while the following charges...even if a fraction of a second later...would be redundant, and pose little "threat" (if one's fears are of extra power from a multiple ejection charge). Is my thinking correct here?
- posted
18 years ago