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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.

WR-car from antigravity-research

Discussions about water rocket powered cars, sleds or boats.
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RaZias
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WR-car from antigravity-research

Post by RaZias » Sat Aug 15, 2009 10:45 am

Well, it seems that anty-gravity research team also as a WR car:




Research and Development is the soul of WR

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U.S. Water Rockets1
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Re: WR-car from antigravity-research

Post by U.S. Water Rockets1 » Sat Aug 15, 2009 9:51 pm

RaZias wrote:Well, it seems that anty-gravity research team also as a WR car:


They've had that out on the market for a number of years. Maybe they've tweaked it a little in the past couple of years but it's still not as cool as Todd's water rocket cars because his are made by his own hands.


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thampson
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Re: WR-car from antigravity-research

Post by thampson » Sun Aug 16, 2009 9:11 am

thanks US Water Rockets :)

Its a pretty clever design. I had a look at antigravityresearch's wrocket car and was trying to work out what it was that is keeping it on the ground. The cradle when looking front on in the video .. looks like it would give lift .. I see they mention in the instructions to add weight behind the yellow bumper at the front to keep it on the ground, so that must cancel any lift from the cradle.

Also the rear fins seem to have slots in them to possibly create a twisting force, maybe this is pushing those rear fins / stabalisers onto the ground, i did see it lift the same front skid a few times, maybe the torque from the twisting force did this.

Have to give credit to these guys though, its a good solution that tracks pretty straight and is fast ...

-todd-


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Hornsby Heights Water Rocket Space Agency
http://wrocket.hampson.net.au

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RaZias
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Re: WR-car from antigravity-research

Post by RaZias » Mon Nov 02, 2009 8:03 am

Here is the link to the anti gravity car

http://www.antigravityresearch.com/HTML ... et_Car.pdf


Check out the skids they use.


Research and Development is the soul of WR

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