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 ...
At this point, there are several different bike pump head designs, but for Fernando Tages, the Founder of Radian USA/Chainlift, there had to be a better way. It’s a classic story, man gets tired of an ...
A valve from a bicycle inner tube ... sure the valve can open to let air through from the pump. It may be damaged or screwed shut. If the rocket does fly but not very well, there are things ...