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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

First time making a water bottle rocket

Discussions about rockets, construction materials, adhesives, nozzles, nosecones and fin design.
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Ootharju
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Posts: 4
Joined: Sat May 12, 2018 10:28 pm

First time making a water bottle rocket

Post by Ootharju » Sat May 12, 2018 10:50 pm

Hi everyone! I'm new to this site and making water bottle rockets. I have to make a water bottle rocket that follows these 3 rules for my engineering task:
1. As the body is a pressure vessel, no hole, slit or splicing two bottles together is allowable.
2. Fins, wings and a nose cone can be added to ensure stability.
3. Small weights can be added as long as they are enclosed in the nose cone and are unable to be
dislodged during landing (or a controlled crash).
4. The rocket must travel a minimum of 50 metres in distance, not height.

If anyone could show me some designs and some basic instructions on how to make the rocket, that'll be really appreciated! Thanks!



Ootharju
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Posts: 4
Joined: Sat May 12, 2018 10:28 pm

Re: First time making a water bottle rocket

Post by Ootharju » Sat May 12, 2018 10:59 pm

I had forgotten to say it needed to be made out of soft drink bottles, and nothing else. :?



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addstogether2
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Joined: Sun Mar 15, 2015 1:25 am

Re: First time making a water bottle rocket

Post by addstogether2 » Sun May 13, 2018 7:15 am

Hi and welcome to the forum.

There are plenty of designs and instructions on this site and many of the other individual web sites that will help you.

http://www.aircommandrockets.com/home/

us water rockets .... and plenty of others

regards Al


Life is like riding a bicycle. To keep your balance you must keep moving.
"Albert Einstein"

Ootharju
New Member
Posts: 4
Joined: Sat May 12, 2018 10:28 pm

Re: First time making a water bottle rocket

Post by Ootharju » Sun May 13, 2018 8:50 am

addstogether2 wrote:
Sun May 13, 2018 7:15 am
Hi and welcome to the forum.

There are plenty of designs and instructions on this site and many of the other individual web sites that will help you.

http://www.aircommandrockets.com/home//

us water rockets .... and plenty of others

regards Al
Will give this a try, thanks! :D



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anachronist
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Posts: 200
Joined: Sun May 07, 2017 2:18 pm

Re: First time making a water bottle rocket

Post by anachronist » Sun May 13, 2018 6:17 pm

A rocket that doesn't need a recovery system (it stays in one piece the whole flight) is easy enough to construct. Your main project will be the launcher. Believe me, that will take the most time. Your rocket sounds simple.



Ootharju
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Joined: Sat May 12, 2018 10:28 pm

Re: First time making a water bottle rocket

Post by Ootharju » Sun May 13, 2018 9:11 pm

anachronist wrote:
Sun May 13, 2018 6:17 pm
A rocket that doesn't need a recovery system (it stays in one piece the whole flight) is easy enough to construct. Your main project will be the launcher. Believe me, that will take the most time. Your rocket sounds simple.
The launcher is provided by the school, but I just need to make a water rocket out of plastic soda bottles with the rules applied. Thanks!



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