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Published on May 5, 2013
Static test of the short 2-grain DoubleSShot sugar rocket motor for the Sugar Shot to Space project. Each of the Bates grains had a mass of approximately 7kg (15 pounds) of propellant and contained about 0.1% CF for increasing tensile strength.
Motor is actually 168mm or 6.625" diameter...normal 6" motors fit inside with room to spare.