Welcome to the Water Rocket Forum, sponsored by The Water Rocket Achievement World Record Association.

Since our founding in 2003, we've become the largest, most sophisticated and ground breaking group supporting you, the serious water rocket flyer! Whether you are a beginner or an expert, the WRA2 has something for everyone.

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.

Post your personal or team best here.

Post your team or personal best. To be displayed on the WRA2 standings page(Altimeter Data and Videos are optional)
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Spaceman Spiff
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Re: Post your personal or team best here.

Post by Spaceman Spiff » Mon Aug 18, 2008 8:22 am

Daan.[D&P]Rockets* wrote:Team.[D&P] Rockets* best flight so far with an altimiter is 529` or 161 meters:
http://nl.youtube.com/watch?v=e61b6cjgVYo

We are gonna get higher :)
Did you fly this high with your camera on the rocket or without? Either way this is very impressive. What size nozzle are you using, and how much volume is in the rocket? I don't remember any time in the past few years when so many people were getting water rockets to fly this high. I remember just a few years ago when 300 feet was considered amazingly high!


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Tim Chen
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Re: Post your personal or team best here.

Post by Tim Chen » Mon Aug 18, 2008 9:25 am

Oh my. Mark and I better get our act together and launch another personal best flight!


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Re: Post your personal or team best here.

Post by Cloud Dancers » Mon Aug 18, 2008 9:35 am

Daan.[D&P]Rockets* wrote:Team.[D&P] Rockets* best flight so far with an altimiter is 529` or 161 meters:
http://nl.youtube.com/watch?v=e61b6cjgVYo

We are gonna get higher :)
Nice job. How close to those trees did you land? Trees can be a very scary experience.


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Re: Post your personal or team best here.

Post by The Mooseheads » Mon Aug 18, 2008 2:43 pm

I'll make sure this flight gets added to the personal best listing on the main website! Great work!


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Re: Post your personal or team best here.

Post by WRA2 » Mon Aug 18, 2008 3:18 pm

Daan.[D&P]Rockets* wrote:Team.[D&P] Rockets* best flight so far with an altimiter is 529` or 161 meters:
http://www.youtube.com/watch?v=e61b6cjgVYo

We are gonna get higher :)
Congratulations Daan.[D&P]Rockets*,

You Team best has been published on the World records page on the WRA2 site. Keep up the good work we look forward to your next flight!


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Daan.[D&P]Rockets*
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Re: Post your personal or team best here.

Post by Daan.[D&P]Rockets* » Tue Aug 19, 2008 6:51 am

Thanks for the great responses!
The rocket had a volume of 8 litre. And a standard pop bottle nozzle of 22 mm.
The rocket is spliced to getter and this time we pressured the rocket up to 10 bar!
It has to be capable of 12 bar but before we do that the pomp hose has to be longer :) (safety first)



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Re: Post your personal or team best here.

Post by Daan.[D&P]Rockets* » Tue Aug 19, 2008 6:57 am

about landing near the trees...

It landed just 150 meters from the trees so there was some space left :wink:

We had it before that a rocket landed in the trees. It was hanging there for 1 week :( ...
It was this rocket:
http://www.youtube.com/watch?v=G0EZTbg0Yo8

lucky we didn't put any electronics in that rocket.. although the rocket went really high! I am interesting how high that rocket went!



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Tim Chen
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Re: Post your personal or team best here.

Post by Tim Chen » Tue Aug 19, 2008 9:36 am

Daan.[D&P]Rockets* wrote:Thanks for the great responses!
The rocket had a volume of 8 litre. And a standard pop bottle nozzle of 22 mm.
The rocket is spliced to getter and this time we pressured the rocket up to 10 bar!
It has to be capable of 12 bar but before we do that the pomp hose has to be longer :) (safety first)
Can I ask you what the diameter of the outside of the rocket is? The more skinny a bottle is the more pressure it can hold. I bet this is how you get so much pressure in your rockets.


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Daan.[D&P]Rockets*
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Re: Post your personal or team best here.

Post by Daan.[D&P]Rockets* » Tue Aug 19, 2008 10:54 am

The outher bottle diameter is 85mm i gues. Its the normal bottle size in the netherlands.
But the bottles we use are the old bottles from the netherlands. They are much thicker and stronger then the US bottles.
And the bottles we have nowadays suck. They are weak and cant wearstand high pressures.
I bought some old bottles so i have some spares :)



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Spaceman Spiff
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Re: Post your personal or team best here.

Post by Spaceman Spiff » Tue Aug 19, 2008 1:14 pm

Daan.[D&P]Rockets* wrote:The outher bottle diameter is 85mm i gues. Its the normal bottle size in the netherlands.
But the bottles we use are the old bottles from the netherlands. They are much thicker and stronger then the US bottles.
And the bottles we have nowadays suck. They are weak and cant wearstand high pressures.
I bought some old bottles so i have some spares :)
I just imagine what it would be like if we had the same problem here. I would travel to every store around and buy the drinks with the good bottles before they went away. I imagine all the water rockets people in the Netherlands did the same thing because that's what we would do here!

I think the bottles you have now that you hate are the same as the ones we have had for many years.

I think that many years ago the bottles in the US had a "cup" glued on the bottom in place of the "claw". I remember seeing them many years ago. I don't know if anyone remembers those. I guess I am dating myself by saying that I remember them!

I wish I had some of those because they had no claw on the end. They were done shaped! And the "cup" was what they stood up on!


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Re: Post your personal or team best here.

Post by Aquafire » Tue Aug 19, 2008 10:21 pm

Spaceman Spiff wrote:
Daan.[D&P]Rockets* wrote:The outher bottle diameter is 85mm i gues. Its the normal bottle size in the netherlands.
But the bottles we use are the old bottles from the netherlands. They are much thicker and stronger then the US bottles.
And the bottles we have nowadays suck. They are weak and cant wearstand high pressures.
I bought some old bottles so i have some spares :)
I just imagine what it would be like if we had the same problem here. I would travel to every store around and buy the drinks with the good bottles before they went away. I imagine all the water rockets people in the Netherlands did the same thing because that's what we would do here!

I think the bottles you have now that you hate are the same as the ones we have had for many years.

I think that many years ago the bottles in the US had a "cup" glued on the bottom in place of the "claw". I remember seeing them many years ago. I don't know if anyone remembers those. I guess I am dating myself by saying that I remember them!

I wish I had some of those because they had no claw on the end. They were done shaped! And the "cup" was what they stood up on!
I remember them too but I cannot locate a good photo of them in the whole internet!!

All I can find is this one:
You do not have the required permissions to view the files attached to this post.



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Re: Post your personal or team best here.

Post by Aquafire » Tue Aug 19, 2008 10:24 pm

Daan.[D&P]Rockets* wrote:Team.[D&P] Rockets* best flight so far with an altimiter is 529` or 161 meters:
http://www.youtube.com/watch?v=e61b6cjgVYo

We are gonna get higher :)
Nice video Daan! You sound very excited and releived when the parachutes deploy! I think I would react the same way!



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Daan.[D&P]Rockets*
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Re: Post your personal or team best here.

Post by Daan.[D&P]Rockets* » Thu Aug 21, 2008 12:00 pm

The exiting did come from both of us :)
We where releaved that the parachutes did come out.
Because we had some bad flights before and now we finaly did get a good flight! :WRA2:

Thnx



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U.S. Water Rockets1
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Re: Post your personal or team best here.

Post by U.S. Water Rockets1 » Sat Oct 04, 2008 9:34 pm

Aquafire wrote:
Spaceman Spiff wrote:
Daan.[D&P]Rockets* wrote:The outher bottle diameter is 85mm i gues. Its the normal bottle size in the netherlands.
But the bottles we use are the old bottles from the netherlands. They are much thicker and stronger then the US bottles.
And the bottles we have nowadays suck. They are weak and cant wearstand high pressures.
I bought some old bottles so i have some spares :)
I just imagine what it would be like if we had the same problem here. I would travel to every store around and buy the drinks with the good bottles before they went away. I imagine all the water rockets people in the Netherlands did the same thing because that's what we would do here!

I think the bottles you have now that you hate are the same as the ones we have had for many years.

I think that many years ago the bottles in the US had a "cup" glued on the bottom in place of the "claw". I remember seeing them many years ago. I don't know if anyone remembers those. I guess I am dating myself by saying that I remember them!

I wish I had some of those because they had no claw on the end. They were done shaped! And the "cup" was what they stood up on!
I remember them too but I cannot locate a good photo of them in the whole internet!!

All I can find is this one:

Aqua fire:
We're trying to find an example of these old style bottles so we can do a comparison to the new ones we have today. There's been some discussion regarding the hemispherical bottom (under that "cup" foot) and how the shape would allow much higher pressures to be achieved.


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andicirk
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Re: Post your personal or team best here.

Post by andicirk » Sat Oct 11, 2008 7:15 pm

i doubt this is the correct place to post this but if there is anyone in the south of france that wants to work as a team i would be really interested in that.. i'm in the vaucluse (84) and can be contacted through my profile , as a personal record at the moment im still well below the 100m mark , at the last mini festival i managed to get to 79 m but that was the last flight of my single bottle rocket as the parachute failed to open and it nose dived onto a concrete parking ........



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