It’s an automatic parachute deployment system that you build into the nose-cone of your ... is then slipped over another bottle that makes up the body of the rocket. The rubber band wraps ...

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 ...

Water gets pushed down, bottle flies up. Done? Oh no! The first step into more sophistication is the aerodynamics. But honestly, if you make something vaguely rocket-shaped with fins, it’ll ...

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.