Water-rockets - Group about homemade rockets powered by compressed air and water, and related topics. Water Rocketry - Learn about water rocketry firsthand from the folks at NASA. Useful software that helps predict your rocket launches and trajectories. A section for teachers who would like to use water rocketry in the classroom. 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. Water Rocket News - Design, construction, launching, and recovery, with aerial photography, in-flight videos, and photo galleries. 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. DotRocket Blog - Water rocket enthusiast's blog. Hornsby Heights Water Rocket Space Agency - Instructions for constructing launch systems. Water Rockets at the Ghent University - Chronicles launcher and circuit testing by a group of PhD students. Clayton's Water Rockets - Instructions for parachute deployment and video camera installation. Air Command Water Rockets - In-depth information on water rocketry, including how-to videos.