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 ...

The EZ-Launch bottle rocket launcher has an internal spring loaded ... pump or air compressor to pressurize the bottle through air valve stem.

Starliner and its rocket ride, a United Launch Alliance ... at the site so scientists can replace a misbehaving valve in the launcher's upper stage. The duo could be back soon, however: They ...

Combustion efficiency is further improved with the addition of a valve that controls the flow ... countermeasure to North Korea’s multiple rocket launchers, which can target bases 150-200 ...

As part of ESA's Future Launchers Preparatory Program ... investigating new designs for propellant valves and injectors that can vary the thrust of rocket engines powered by more sustainable ...