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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.

our launcher

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
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C.I.A.C
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our launcher

Post by C.I.A.C » Mon Sep 08, 2008 12:34 am

hi,, here i have some fhotos of my launcher
it`s maded by the cable ties sistem
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Spaceman Spiff
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Re: our launcher

Post by Spaceman Spiff » Mon Sep 08, 2008 8:44 am

Aye Caramba! That looks like a sturdy launch platform! What is it makde out of? It looks like welded steel plate to me!

Is that 5 gallon drinking water bottle a rocket too? I've never seen anyone make a rocket from one of these except on mythbusters!


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Cloud Dancers
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Re: our launcher

Post by Cloud Dancers » Mon Sep 08, 2008 12:08 pm

Hello C.I.A.C,

Nice launcher you have there. Just one question. What does the second rope control? I see that one of then controls the PVC pipe that holds the ties but the other is connected to a metal lever of some kind. Is that some kind of valve to either fill the rocket or dump pressure in an emergency?


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C.I.A.C
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Re: our launcher

Post by C.I.A.C » Mon Sep 08, 2008 3:15 pm

hi, again

the water galon is for just water, because theres no water in that place

and the plataform of the launcher is iron and we have 4 of that plataforms, its made for airports lights , i get it because my dad make airport lights :wink:

the secondary rope is for the steel lever that secures the iron pipe, if the steel lever wasnt there the pipe slips down :mrgreen:



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Tim Chen
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Re: our launcher

Post by Tim Chen » Tue Sep 09, 2008 8:44 am

C.I.A.C wrote:hi, again
the secondary rope is for the steel lever that secures the iron pipe, if the steel lever wasnt there the pipe slips down :mrgreen:
I don't get it either. Can you explain more? If it holds the iron pipe in place then why does it have a rope to release it remotely as well as the rope to pull down the collar remotely?


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C.I.A.C
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Re: our launcher

Post by C.I.A.C » Tue Sep 09, 2008 1:07 pm

that steel thing is just to make sure that the iron pipe won`t slip down because some bottles are damaged and de cable ties and the pipe haven`t a good grip,

its just a safety mechanism that it assured that the rocket does not fly without previous warning :mrgreen:

we had cases that the rocket flew without previous warning :shock:



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Spaceman Spiff
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Re: our launcher

Post by Spaceman Spiff » Tue Sep 09, 2008 1:16 pm

C.I.A.C wrote:hi, again

the water galon is for just water, because theres no water in that place

and the plataform of the launcher is iron and we have 4 of that plataforms, its made for airports lights , i get it because my dad make airport lights :wink:

the secondary rope is for the steel lever that secures the iron pipe, if the steel lever wasnt there the pipe slips down :mrgreen:
Thanks for explaining the launcher for me. If you ever decide to fly that big water jug, I'd love to see it! :lol:


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Cloud Dancers
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Re: our launcher

Post by Cloud Dancers » Tue Sep 09, 2008 9:49 pm

C.I.A.C wrote:that steel thing is just to make sure that the iron pipe won`t slip down because some bottles are damaged and de cable ties and the pipe haven`t a good grip,

its just a safety mechanism that it assured that the rocket does not fly without previous warning :mrgreen:

we had cases that the rocket flew without previous warning :shock:
Thanks for answering. Unplanned takeoffs are such a drag (it really messes up your deploy if you are using a timer) :(


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C.I.A.C
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Re: our launcher

Post by C.I.A.C » Wed Sep 10, 2008 1:01 am

hi,

if you can see the picture number 1 you`ll see that the deploy sistem is gravital and not electrical is better because its simple and it isnt heavy

see my video here, you will see the deploy sistem working

http://vids.myspace.com/index.cfm?fusea ... d=42113229



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