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.


Hello Everyone. It is that time of year again. Time to approve changes to the competition rules for the new year.

You Can vote at:
viewtopic.php?f=32&p=19486#p19486

Please take the time to vote. TH:

Booster and Launcher

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
Post Reply
User avatar
Water Rocket Expert
WRA2 Member
WRA2 Member
Posts: 621
Joined: Fri Nov 22, 2013 10:39 am

Booster and Launcher

Post by Water Rocket Expert » Fri Jan 10, 2014 12:23 pm

Do you think the launcher that US water rockets shows how to make is good. I have one similar. And for a booster rocket one with boosters do the boosters have to put out more thrust or the main rocket just weight more?


Water Rocket Expert
I'm 18
Maryland
"Anyone who has never made a mistake has never tried anything new." -Albert Einstein

User avatar
Team Seneca
WRA2 Member
WRA2 Member
Posts: 242
Joined: Sun Dec 31, 2006 1:40 am

Re: Booster and Launcher

Post by Team Seneca » Fri Jan 10, 2014 1:39 pm

Water Rocket Expert wrote:Do you think the launcher that US water rockets shows how to make is good. I have one similar. And for a booster rocket one with boosters do the boosters have to put out more thrust or the main rocket just weight more?
You can't go by weight or thrust for that. You have to go by weight and thrust together over time, and that's acceleration. The easy way to make this calculation is to simulate a booster as if it were a single stage and then simulate the sustainer as a single stage. If the sustainer has a greater acceleration than the booster at any point during the booster thrust phase, then you will have a problem with the boosters falling off when still powered.

I've not seen the U.S Waterrockets booster rocket or launcher, so I can't say that it is any good or not. I need to look into it but couldn't find anything about it.


Bill W.
Team Seneca

User avatar
Water Rocket Expert
WRA2 Member
WRA2 Member
Posts: 621
Joined: Fri Nov 22, 2013 10:39 am

Re: Booster and Launcher

Post by Water Rocket Expert » Fri Jan 10, 2014 3:54 pm

They don't have a booster rocket but they do have a launcher. The launcher part of my question was seperate. It was about how to construct a launcher. http://www.uswaterrockets.com/construct ... torial.htm


Water Rocket Expert
I'm 18
Maryland
"Anyone who has never made a mistake has never tried anything new." -Albert Einstein

User avatar
Team Seneca
WRA2 Member
WRA2 Member
Posts: 242
Joined: Sun Dec 31, 2006 1:40 am

Re: Booster and Launcher

Post by Team Seneca » Sat Jan 11, 2014 3:02 pm

Water Rocket Expert wrote:They don't have a booster rocket but they do have a launcher. The launcher part of my question was seperate. It was about how to construct a launcher. http://www.uswaterrockets.com/construct ... torial.htm
That looks like a really well engineered launcher mechanism. Since it seems to work on their carbon rockets with huge pressures, I can't imagine you being able to make a rocket that would break it. Why didn't anyone think of this design ever before?


Bill W.
Team Seneca

User avatar
U.S. Water Rockets1
WRA2 Member
WRA2 Member
Posts: 1771
Joined: Sat Feb 03, 2007 3:24 pm

Re: Booster and Launcher

Post by U.S. Water Rockets1 » Sat Jan 11, 2014 11:22 pm

Team Seneca wrote:
Water Rocket Expert wrote:They don't have a booster rocket but they do have a launcher. The launcher part of my question was seperate. It was about how to construct a launcher. http://www.uswaterrockets.com/construct ... torial.htm
That looks like a really well engineered launcher mechanism. Since it seems to work on their carbon rockets with huge pressures, I can't imagine you being able to make a rocket that would break it. Why didn't anyone think of this design ever before?
Thatnks, Bill. But remember: we have no idea what the limit to the design is. It should be proportional to the number of cable ties and the strength of each one. It should be more than capable of holding down a cluster rocket.


Team U.S. Water Rockets
Visit USWaterRockets.com
Visit our Blog
Tune in to our YouTube Channel
Visit our Facebook page
Visit our Twitter Page
Opportunity is missed by most people because it is dressed in overalls and looks like work. --Thomas Edison

User avatar
Water Rocket Expert
WRA2 Member
WRA2 Member
Posts: 621
Joined: Fri Nov 22, 2013 10:39 am

Re: Booster and Launcher

Post by Water Rocket Expert » Sun Jan 12, 2014 12:09 am

Thatnks, Bill. But remember: we have no idea what the limit to the design is. It should be proportional to the number of cable ties and the strength of each one. It should be more than capable of holding down a cluster rocket.[/quote]

I have made mine with pulleys and the clamp method and I have drilled holes for stakes and also made the launch tube interchangeable.


Water Rocket Expert
I'm 18
Maryland
"Anyone who has never made a mistake has never tried anything new." -Albert Einstein

User avatar
Water Rocket Expert
WRA2 Member
WRA2 Member
Posts: 621
Joined: Fri Nov 22, 2013 10:39 am

Re: Booster and Launcher

Post by Water Rocket Expert » Sun Jan 12, 2014 12:11 am

Thatnks, Bill. But remember: we have no idea what the limit to the design is. It should be proportional to the number of cable ties and the strength of each one. It should be more than capable of holding down a cluster rocket.[/quote]

I have made mine with pulleys and the clamp method and I have drilled holes for stakes and also made the launch tube interchangeable.


Water Rocket Expert
I'm 18
Maryland
"Anyone who has never made a mistake has never tried anything new." -Albert Einstein

User avatar
Alien Space Agency
WRA2 Member
WRA2 Member
Posts: 148
Joined: Sun Nov 15, 2015 7:32 am

Re: Booster and Launcher

Post by Alien Space Agency » Wed Nov 18, 2015 8:54 pm

Well, usually boosters are used for foaming rockets because these kinds of rockets produce lesser than normal thrust. So boosters are used to get it up to speed.
Try checking Air Command for tips.
www.aircommandrockets.com


Nothing can stop a curious mind from inventing- Anonymous

Post Reply