But pointing out that lightweight cardboard tubes can be tricky to ship without getting crushed, [Concrete Dog] has come up with HEXA, a clever model rocket kit that uses pre-scored cardstock instead.
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A Tale of Two Model Rocket Companies: SpaceX and EstesThe other makes small model rockets for hobbyists ... to test various aspects of the new rocket. The main focus was on a new version of the “Ship” upper stage, which sported a new aerodynamic ...
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