Rocket will NOT fly straight without an aerodynamic nose cone made from a second soda bottle and use only 1 cup (200 ml) of water. Kit includes StratoLauncher IV, StratoFins, ball head ...

Practise and challenge your friends! Download the Water bottle Rockets PDF(378 Kb). Adobe Acrobat is required. SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres.

This piece of engineering is so simple and elegant, you’ll want to build a pretty serious water ... of your rocket. The main portion of the build is made out of plastic soda bottles (2 liter ...