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Water rocket

Note (?)
Difficulté (?)
Durée (?)3h 0 min.
Date03.05.2013
AuteurMartin
TraducteurMartin
Organismeinfo-energie
Coût (?)~20 CHF
Languefrançais deutsch english
License (?)
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This water rocket DIYs project shows how you can stock energy and illustrates the action-reaction principle.

 

With the help of a bicycle pump, air is compressed in a tank (bottle) containing some water. By releasing the air, the water is expelled and the rocket is launched high in the air.

To optimize the performance of the rocket, it is important that its structure is balanced and that leaks are reduced to a minimum. The amount of water and air in the bottle is also important. Optimizing the rocket shows that with the same amount of energy it is possible to improve the performance of the rocket.


Matériel

Outils

Réalisation


Remove the thread of a PET bottle neck with a fine.   Allow a certain roughness (sto ...
Roll about 50 cm of teflon thread seal tape around the bottle neck.
Screw tightly the threaded tap connector on the bottle neck.   It should hold very w ...
Cut out 3 cylinders from the central parts of the 3 remaining 1.5 litre PET bottles.   ...
Cut off the neck of the top part of one of the cut bottles.   Form the top of the ro ...
Cut the flattened cylinders according to the drawing to form 4 stabilizing fins.   P ...
Cut the remainging cylinder to form a 10 cm high cylinder.   Fix the fins around the ...
Slide the cylinder with the fins on the lower part of the rocket.   With insulating ...
Push the valve gently through the female Gardena connector using a long bolt and a hammer. ...
Drill a 2.5 cm diameter hole with a metal hole saw at about 4 cm from the upper edge of the la ...
Pass through the hole in the wood board the female Gardena connector and screw its cap on the ...
Drill the wood slat using an M4 bit as indicated.
Pass the end of the cable tie through the hole B of the wood slat and tighten the other side u ...

Fonctionnement

Liens&Références