Booster stage engine and has to be used with a standard engine;Engine is for flights in rockets weighing less than 14 ounces, including the engines;Engines tested and certified by the NAR;Easy to use and comes with clear instructions
Booster stage engine and has to be used with a standard engine;Engine is for flights in rockets weighing less than 14 ounces, including the engines;Engines tested and certified by the NAR;Easy to use and comes with clear ins...
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