Water Rocket RPG Launched At 100psi 500ml

This is another one of my water rocket RPG launch at Seng Kang open field. The rocket was filled with 500ml of water, which is the maximum, anything more than that will slow down the rocket.

The rocket is then filled with air through a quality bicycle pump to an air pressure of 100psi, which is more than 3 times the normal air pressure of a car tire at around 30 psi.

For this test, the rocket fly way too high up to the sky probably because the angle of launch was too much, around 70 degrees. Ideally, it should be about 45-60 degrees to obtain a long horizontal distance.

World First RPG Propelled By Water Bottle Rocket

This is the RPG that I have created that is propelled by pressurized water and air. If you can’t see me, I’m at the far right of the video, the spot where I launched the RPG water rocket.

For this video, the rocket is pressurized to 60psi and filled with 250ml of water. You can see that when the rocket is launched, there is some short burst of water spray which is the reaction mass that help to propel the water rocket forward.

This happens because water is forced out of the rocket by the pressurized air.

The water rocket then reaches a peak when the water has all expelled out, it then descends back to the ground due to the force of gravity.