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.

2-stage-rocket

Post photos and videos of your rocket, launches and your onboard video or photos here. A wide variety of formats supported including attachments and embedded youtube.
Post Reply
Scorpion_XIII
Advanced Member
Advanced Member
Posts: 22
Joined: Thu May 21, 2009 10:57 am

2-stage-rocket

Post by Scorpion_XIII » Sun May 24, 2009 8:48 am

Hello,

this is my 2-stage-rocket.
It is a SST-Rocket with GFK for booster and second stage. Booster has its own parachte that is released when the second stage starts in the air.
The second stage has a electronic that uses the earth magnetfield to detect the apogee (named MAGIER) It controls three parachtes by two servos.
The second stage has a camera :)
Stage separation is done with the crushing sleeve from Batkiter.

Nice launch and perfect flight :D

Scorpion_XIII
You do not have the required permissions to view the files attached to this post.



User avatar
rockets-in-brighton
Senior Member
Senior Member
Posts: 431
Joined: Fri Jun 20, 2008 12:33 pm

Re: 2-stage-rocket

Post by rockets-in-brighton » Thu May 28, 2009 5:25 am

Scorpion_XIII wrote:Hello,

this is my 2-stage-rocket.
It is a SST-Rocket with GFK for booster and second stage. Booster has its own parachte that is released when the second stage starts in the air.
The second stage has a electronic that uses the earth magnetfield to detect the apogee (named MAGIER) It controls three parachtes by two servos.
The second stage has a camera :)
Stage separation is done with the crushing sleeve from Batkiter.

Nice launch and perfect flight :D

Scorpion_XIII
That's really nice. So "GFK" is a kind of glass fibre. What pressure can GFK hold?


Cheers
Steve
Rockets-in-Brighton
WEB: http://groups.google.co.uk/group/rockets-in-brighton

Scorpion_XIII
Advanced Member
Advanced Member
Posts: 22
Joined: Thu May 21, 2009 10:57 am

Re: 2-stage-rocket

Post by Scorpion_XIII » Thu May 28, 2009 5:39 am

Hi,

yes GFK=Glasfaserverstärkter Kunststoff=glas-fibre laminate.
I spliced bottles together with the SST method and then I laminated it with a little bit glas-fibre. So it can hold 16bar=232psi (this is the maximum of my handpump (named SKS)).
http://www.sks-germany.com/sks.php?l=en ... 2191753745

For information, 16bar=232psi is mostly the maximum pressure that is used in germany because of the SKS pump



User avatar
Mark Chen
WRA2 Member
WRA2 Member
Posts: 179
Joined: Wed Jan 31, 2007 1:13 pm

Re: 2-stage-rocket

Post by Mark Chen » Thu May 28, 2009 1:08 pm

That looks pretty sweet! 232 PSI is getting up there! Good to know crushing sleeve will work at higher pressure! Any idea how high it goes?


Mark Chen
Team Enterprise

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

Re: 2-stage-rocket

Post by Alien Space Agency » Sun Dec 27, 2015 8:11 pm

Cool, it looks like NASA's Terrier-Malemute 2-stage sounding rocket.


Nothing can stop a curious mind from inventing- Anonymous

Astrofox
WRA2 Member
WRA2 Member
Posts: 15
Joined: Sat Feb 27, 2016 8:31 pm

Re: 2-stage-rocket

Post by Astrofox » Sun Mar 06, 2016 6:31 pm

Say, I have a question: where did you find the staging mechanism? I've always wanted to have a multi-stage rocket.



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

Re: 2-stage-rocket

Post by Alien Space Agency » Tue Mar 08, 2016 6:11 am

Actually you have to build one yourself. It consists of a rigid tube and a rubber sleeve.


Nothing can stop a curious mind from inventing- Anonymous

User avatar
China_WaterRocket
WRA2 Member
WRA2 Member
Posts: 85
Joined: Fri Feb 10, 2017 9:36 am

Re: 2-stage-rocket

Post by China_WaterRocket » Fri Mar 03, 2017 12:58 am

Good picture, thank you.


I come from China, do not understand English, your information I use the translation software to view. I like water rockets, technology is the same, I hope we can become friends.

Post Reply