Brief intro.
Water rocket is filling a PET (think coke bottle) with water (1/3), sealing it, pumping it full of air, and letting it shoot upwards through the force of the exiting water and air. The world record is something about 2000 ft.
Where oh where to put the fin page? Anyway, it's here. cylinder fin
Safety
Launchers
Nozzle/Connectors
Recovery Mechanisms
MORE POWER
