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 ...

Easy to assemble metal water rocket launcher with a 125 PSI safety valve. Rocket will NOT fly straight without an aerodynamic nose cone made from a second soda bottle and use only 1 cup (200 ml ...

In this case, though, we’ll respectfully disagree with [Zach Hipps] assessment of his remote-controlled soda bottle rocket launcher as “overengineered”. To us, it seems just right.

This bottle rocket runs on ethanol, ejecting the hot products of ethanol combustion. It is fairly loud and moves very quickly. This will get everyone's attention. Make sure the launcher platform is ...

To assemble the stomp rocket, place the rocket on the end of the launcher. Then stomp on the 2-liter bottle to see how high ...