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

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.

quick question on loading water..

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
Post Reply
User avatar
Nick B
Internet Troll
Posts: 347
Joined: Tue Apr 03, 2012 8:47 pm

quick question on loading water..

Post by Nick B » Wed Apr 11, 2012 9:12 pm

When you have multiple 2 liter bottles hooked/spliced together, how do you keep your water in the rockets with your launchers? Or how do you keep the water in your rockets with gardenia launchers also?

We are starting off with the bottles with full bore openings and the cross pin/and vertical air tube. Forgot the name of the design. :(

What is the most common way to keep the water or load the water into these rockets without it leaking down into the pvc and air lines? :(



My apologies for not searching thru all the threads, but I'm short on web time for a little while.


Thanks.


Nick and Dad B.

User avatar
Brian
WRA2 Member
WRA2 Member
Posts: 496
Joined: Fri Feb 08, 2008 6:02 am

Re: quick question on loading water..

Post by Brian » Fri Apr 13, 2012 12:47 am

The vertical air tube that extends into the rocket can be extended further above the water line, a 1-way valve can be used to stop water flowing back or a section of the airline can be raised above the water level to stop the water there.


Ascender Water Rockets
http://ascenderwaterrockets.weebly.com/
https://www.youtube.com/channel/UCS2NHXS-VFxEux70DCINR0w

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

Re: quick question on loading water..

Post by U.S. Water Rockets1 » Sat Apr 14, 2012 11:10 pm

Nick B wrote:When you have multiple 2 liter bottles hooked/spliced together, how do you keep your water in the rockets with your launchers? Or how do you keep the water in your rockets with gardenia launchers also?

We are starting off with the bottles with full bore openings and the cross pin/and vertical air tube. Forgot the name of the design. :(

What is the most common way to keep the water or load the water into these rockets without it leaking down into the pvc and air lines? :(



My apologies for not searching thru all the threads, but I'm short on web time for a little while.


Thanks.
As long as the pressure in the launcher is higher then the pressure inside the rocket, the water will not come out, even if you have no internal tube. The pressure inside the launcher resists the escape of water like a straw full of water with a finger over the top. The air pressure holds the water from coming out.


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
Tommy
WRA2 Member
WRA2 Member
Posts: 19
Joined: Sat Mar 03, 2012 4:10 pm

Re: quick question on loading water..

Post by Tommy » Wed Jun 27, 2012 9:28 am

Try using a one way valve or looping the air hose above the water in the rocket.



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

Re: quick question on loading water..

Post by U.S. Water Rockets1 » Sat Jun 30, 2012 10:06 pm

Tommy wrote:Try using a one way valve or looping the air hose above the water in the rocket.
The problem with a 1-way valve is that you can't drain the pressure in the rocket in case of an emergency.


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

Post Reply