Make a launchpad that holds the bottle with the neck downwards, lets you attach the pump and stand behind the bottle. One good method is to plant a spade or garden fork in the ground at a low angle ...

Such projects always hold the potential for entertainingly over-the-top designs, materials ... assessment of his remote-controlled soda bottle rocket launcher as “overengineered”.

No eyes were lost, and it was good clean ... launch air-water rockets and came up with a pretty clever system. The core task is to pump air into the partially filled water bottle and then release ...

This stunt has lots going on: air pressure, a satisfying 'whoosh' noise, a high speed departure and a good soaking if you ... Download the Water bottle Rockets PDF(378 Kb). Adobe Acrobat is ...