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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.


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my water rocket car

Discussions about water rocket powered cars, sleds or boats.
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Jelo
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my water rocket car

Post by Jelo » Mon Oct 26, 2009 8:06 am

here's a video of my 2 litre water rocket car!

http://www.youtube.com/watch?v=TdY0mj0hPc4


Anto'

always wear a raincoat

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thampson
Current WRA2 Dragster Speed & Distance Record Holder
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Re: my water rocket car

Post by thampson » Wed Oct 28, 2009 8:39 am

Anto

nice work :) Plenty of run off room there on the beach.

I guess the sand was really hard as I cant see the wheels digging in. Was the sand flat or sloping to the right .. did this account for the car moving to the right ?

I like the shot of the dog checking it out !! :)

keep us informed of your progress

-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: my water rocket car

Post by RaZias » Wed Oct 28, 2009 11:21 am

I like the fact of using the Mecano as structure instead of wood, it's more faster and simpler to construct !

I hope you can put a radio controled system on it.


Research and Development is the soul of WR

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Jelo
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Re: my water rocket car

Post by Jelo » Wed Oct 28, 2009 12:00 pm

thanks both of you :)
nice work :) Plenty of run off room there on the beach.

I guess the sand was really hard as I cant see the wheels digging in. Was the sand flat or sloping to the right .. did this account for the car moving to the right ?

I like the shot of the dog checking it out !! :)

keep us informed of your progress
yeah i went to the beach to have some fun with my dog and RC cars and just tought about letting the WRC tag along :P the tide was going down, leaving moist flat sand, just moist enough to hold together but not enough to stick to the wheels. actualy the slope was near 0 degrees maybe 1 or 2, i figured out when i went home some sand got in the right wheels, creating a lot more friction on one side, making it turn right. and yeah, my dog gets very exited once he sees a water rocket,or anything that moves actualy...he jumped on my RC plane once just after landing :cry: RIP plane....

I like the fact of using the Mecano as structure instead of wood, it's more faster and simpler to construct !

I hope you can put a radio controled system on it.
yep, i use mecano on it so i can easily change it around as it is one of my first cars, i can change the fins, rear wings and so on! only problem is the weight of the car, 650g without the bottles...but it gives it good momnetum.only prolem with mecano....rust.....


Anto'

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RaZias
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Re: my water rocket car

Post by RaZias » Thu Oct 29, 2009 9:19 am

You can paint the mecano parts with a anti-rust spray


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Jelo
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Re: my water rocket car

Post by Jelo » Thu Oct 29, 2009 2:16 pm

yeah but them they stick together and the holes get clogged up... but the way im making a new water rocket that would use an air flap recovery system. gonna try compete in class C! got a massif parachute as well hehehe


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RaZias
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Re: my water rocket car

Post by RaZias » Fri Oct 30, 2009 3:23 am

If you paint each part separated (before making the car) and then you put ruber discs between each hole (so the friction doesn't take out the anti-rust paint), I think it would work.


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Jelo
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Re: my water rocket car

Post by Jelo » Sat Nov 21, 2009 3:13 pm

i stopped water rocket car making for a while...there realy not as impressif as rockets!


Anto'

always wear a raincoat

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