My first water rocket

after seeing the first water rocket videos it didn't take long before i started to make my own water rocket.

This first rocket was made of a single 1.5 liter bottle with the top of another bottle as a nosecone, at first there was no recovery system on this rocket, later i added a parachute that was supposed to deploy at apogee using NOAA (Nosecone Of At Apogee) but the nosecone hardly ever came of at all or fell of just after thrust phase. 

I used a cork with a bicycle valve and a bicycle pump to launch the rocket (no release system), this way it's always hard to know when the rocket launches and you miss half of the flight because the rocket is already near apogee when you're aware that it was launched. So i made a release system to launch the rocket when i wanted it to. This release system was a U-pin that held the bottle behind the collar. Then, when the rocket was pressurized, the pin was pulled out and the rocket was launched.

 

We had great fun with this rocket, but i wanted more...