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 ...

With a water bottle and some industrial duct tape ... kind of learning about rocket launches and what good rocket design might look like,” said En-Tze Chong, UT Tyler Academy campus engineering ...

The problem with a lot of these water bottle rocket projects is that they leak where the bottle meets the launcher. In most cases this is a good thing as it’s almost impossible to build up ...