Soda Bottle Water Rocket

Step 3 Bottle Merge

Take the cut bottle from the previous step and insert it directly over the bottom of the other bottle - this becomes the nose cone of the rocket. Try your best to keep everything straight. If you put the nose on crooked, your rocket will fly crooked. Place the nose cone on loosely at first, then gently press down until firm. Turn bottle upside down and let it drop on a hard surface several times. If you press the nose cone on too hard, you'll start to get "crinkles" in the plastic. Crinkles are bad.

Comments

[Schober]

There is a way to splice the two bottles together so that you get an increased pressure chamber instead of having the other bottle being just dead weight on your rocket. Be advised this does take much more time and is far more costly than simply attaching the other bottle, but it seems to me like it would be worth it. I did not make this video I'm simply sharing it with the people.

[paperclip32]

I think getting all the materials to do that would cost too much.This is just for kids,anyway.

[epic sonic]

ever thing is cheap except for the foam core

but you can buy it at the $Rama for $2.00 but then its not as good as if you buy it at

staples

thanks for your time

[paperclip32]

I was referring to the video Schober posted.

[cyenobite]

note: the lower bottle has not been cut at all - this is the one that will hold all of the air pressure and water. The upper bottle that has been cut, is really just a "nose cone" and does NOT hold any pressure or water.