Water Rocket

Have you ever dreamed of having your rocket? Well now you can! All you need is some household items to make a high-flying water rocket. This is a pretty easy project that can be done in 30 minutes of less.

Step 1 Get the Materials

In order to build this cool rocket, you'll probably have everything you need at home. These are the materials you need.

Materials:

2 2-litter pop bottles- You can use any size, just make sure both are the same size, though. I like 2-litters best because they go the highest. Try experimenting with different sizes.

Duct tape- The ultimate tape.

Hot glue gun with glue for it

Cardboard- Find the sturdiest.

X-Acto knife

After you get the hot glue gun, you should probably plug it in. This way it's hot when you're ready to use it.

Comments

[Emziii]

Hey do u hav 2 use a hot glue gun? If not plz tell meh sum otha glues i can use. Would duct tape work okay?

[Emziii]

Please answer asap

[qwertyboy]

Duct tape might work, but I just used hot glue because I could hold the fin in place while the glue hardened.

[chipf]

a estes model rocket launch pad works great for these just glue a pc of straw on the side. i made one with 20 oz. bottles and used this method. me and my 2 boys are making one from a 5 gallon water jug now to try.

[gigocorp]

Do you put the duct tape on to keep the hot glue from melting the bottle? Or does the duct tape have a different purpose?

[qwertyboy]

it is to help with removal if you want to try different fins

[gigocorp]

Oh, I see. Nice idea. A while back I tried to make one and the hot glue melted and disfigured the plastic. But my glue gun is a high-heat glue gun. I figured I'd eventually buy a low-heat glue gun and try again. Maybe we'll test the high-heat glue gun with the duct tape to see if that will protect the plastic. Thanks for a simple and straightforward Instructable.

[floopy290]

I have made some of these but smaller out of little water bottles and a tiny pump. I put a hole large enough for the hose to go through in the bottle cap and filled the bottle 1/4 way with water. I then put the hose into the hole (which had a tight fit) and started pumping. After the bottle was presurized (feel that it is hard to squeeze) I placed it so that the water was at the end with the hole in it and pulled out the hose (you better be wearing water-proof clothing.) The rocket shot into the air! If you have a question ask me!

[LILhazY]

GET BACK TO ME WHEN YOU FIND/MAKE A LAUNCHER FOR IT IM SO KEEN TO MAKE ONE THANKS <(*- *)>

[LuenDe]

how it works

[DIYerr]

THIS is kewl. I get to make one for a school project, and I was wondering if any of you know a way to make them whistle as they fly. I am kinda thinking of whistling arrowheads from China. I think a simple hole in the side of the nosecone should work, but I'm not sure. If anyone has ideas please reply?

[Matt21497]

well i was at my friends and he has nerf darts that wistle u should look those up and think something similar and this could slow down your rocket

[KaptinScarlet]

very nice and simple, I like the fins. Have you flown it yet? I guess I mean do you know if the fins work? they look like they should

[qwertyboy]

no, i havent flow this one yet because i'm not finished with my launch pad, but i've flown ones with the same fin design and they work

[Whitedude0728]

If i put the lid on the nose cone will that improve performance?? cuz it look like itll add drag.

[Kiteman]

I hope you are going to turn the launch pad into an Instructable as well?

[qwertyboy]

yeah, in a while, once i get the stuff

[hassannaeem101]

there's another way to make a rocket. 1. water or soda bottle, bigger the better 2. 1 pump 3.some water now figure out the rest

[bylerfamily]

Cool!Just tried my version.I didn't do it with water though.And I only put it up to 50 psi.But it was snowing and it was hard to pump.Also I didn't feel like getting blasted by water in the dead of winter.

[markus101]

how do you launch??

[bylerfamily]

Check this instructable.

[teddy981]

I was thinking about making a smaller one of these with water bottles or soda bottles or something and then having a launcher that was shoulder mounted like a bazooka. I would make it for an air compressor though so it would fill quickly.

[adam2013]

have you finished the launch pad yet thanks

[qwertyboy]

no, i kinda gave up on it. it was giving me a lot of trouble trying to make a release system

[knex lover]

Nice instructable, it's very simple and looks cool...

[Jahoovi]

rather use 4 wings than 2 so it wold fly strait up. also make the top like a cone shape, but dont make it pointy on top.

[qwertyboy]

it really has 3 fins

[Jahoovi]

really.... it looks like it has 2

[ItsTheHobbs]

How do you make one go in the air?

[Jahoovi]

air pump

[dsman195276]

i made one like this for my science final. mine has to land a egg safely after a launch. i almost got it to work to, everything worked perfectly untill the parachute did not unfold properly and it still fell kinda hard. the egg cracked a little. i fixed all the problems but i never got to do a second launch :-(