water rocket

[Pyro Ninja]

I use to be really into water rockets and ive looked at heaps of web sites, try this one . http://ourworld.compuserve.com/homepage ... tIndex.htm

[)DEMON(]

Professor Amadeus told me that he filled a 2L bottle with water, probley half way and then stuck it on his barrel (of his spudgun) and fired it off. I think it will have the same effect as a normal lock down water rocket. You will need a lot of air though. Just lube the barrel on the outside and fix an o-ring to the bottle lip.

[killagorrila99]

Make it a shoulder mounted launcher using 4 inch pvc as the tube

[Pyro Ninja]

And also a good water to air ratio is around 1/3 water and 2/3s air. I hope thats some help

[Antonio]

We made one in Aerospace Engineering for a project and it went 70 meters high. We did all the maths and calculations on it. I could put the report on this forum. It tells u the optimum fins, center of pressure, center of gravity and even thrust calculations. How can I post a document on this post?

[jackssmirkingrevenge]

How can I post a document on this post?

Save it as a zip file and you can upload it like you upload pictures.

Here's a list of files and sizes you can upload

[Antonio]

Yeah I know about which files can be uploaded but there is no upload button on this post. Normally I do get ehm on other ppls post..strange

[Sticky_Tape]

I love water rockets I make alot of them here is a six litre that I will launch in spring or summer as long as weather is permiting

[Jared Haehnel]

Thats pretty cool...how much pressure do you think it will hold?

Might want straighten out that nose....

[Sticky_Tape]

at least 80 the people who hold water rocket compitions I think they are science olympid or somthing are limited to 60 psi.

[Antonio]

How can I post a document on this post?

Save it as a zip file and you can upload it like you upload pictures.

Here's a list of files and sizes you can upload

Thnx. I found out you can only add a file if you quote someone. I also found out that my file is too big>2.8mbso thats not really ganna work:(

[jackssmirkingrevenge]

I found out you can only add a file if you quote someone.

Or if you click on the lovely icon at the bottom of the page