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untested. inspired by this http://www.instructables.com/id/Soda-Bottle-Rocket./ I thought it would be fun to see if more thrust could be obtained by creating a venturi nozzle. Nozzle should spin onto bottle like a cap.
follow basic instructions in link above. launcher should epoxy into 1 inch pvc or abs. launch trigger is with 1/8 wire (coathanger will work). It may need a bead of silicone in the bottom of the launcher to create a good seal.
bottle rocket fins and venturi by crujones43 is licensed under the All Rights Reserved license.
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