Rockets
- 42
- Kansky Water Rocket Radio Controlled Glider Experiment
- This site documents modifying a water rocket to work as a "payload" rocket to lift a remote controlled glider to higher altitudes using a 2 liter pop bottle as the water rocket.
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- Water Rocket Achievement World Record Association
- Association bringing together water rocket experimenters of all ages and skill levels through online discussions and organizing competition rules and safety standards.