Rocket, model

"Rocket drive" by means of propulsion, plastic bottle with special valve and guide fins along with connecting hose and hand pump, the "pressure tank" is partially filled with water and sealed using the special valve, pumping causes a rise in pressure in the " pressure tank", sufficient pressure causes the connecting hose to be ejected from the valve, water is forced through the valve at high velocity and the rocket rises
Total height: approx. 430 mm, pump hose L = approx. 145 cm
Caution: experiment may only be performed out of doors!
Ascent altitude: 5 - 40 m depending on water volume in tank