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Upper stage engines (purple label). Great for Mongooses, EchoStars and Comanche-3’s.
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The Q-Jets are the world’s most advanced 18mm model rocket motors. They utilize a patent pending high-strength polymer case and bulkhead, ceramic nozzle and RCSs exclusive […]
Upper stage engines (purple label) that come in three packs. B6-6’s are great with EchoStars and Mongooses.