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I'm Thomas from Germany and this is my first post in this forum . I would like to show you my new two-stage-rocket. It is an SST-rocket with an 5,1 liter Booster and an 2,3 liter sustainer. Both tanks are tested to 13bar (188 psi). Recovery Sytem is a simple tommy-timmer system. Stage-release.system is an crushingsleeve made by Claus (batkiter).
But here are some pictures (If i currently have some time I will paint the rocket):
zweistufige 001klein.jpg (29.63 KiB) Viewed 189 times
zweistufige 004klein.jpg (29.45 KiB) Viewed 189 times
I haven't reinforced this rocket. In German we have a systhem called "Mehrweg" . That means that we have bottles that are used more than one time. Becaus the bottles have to be more stronger they have a greater wall thickness. A single bottle can hold more than 18-20bars (260-290 psi) without exploding, but when you splice them I would not go over the 13 bars (188psi) but some testsplices already held 16 bars (230 psi)(limit of my handpump).
Thomas
Two images of the recovery systems:
Sustainer (one parachute is under the nosecone):
bild 020_800x600.jpg (366.67 KiB) Viewed 172 times
I'm Thomas from Germany and this is my first post in this forum . I would like to show you my new two-stage-rocket. It is an SST-rocket with an 5,1 liter Booster and an 2,3 liter sustainer. Both tanks are tested to 13bar (188 psi). Recovery Sytem is a simple tommy-timmer system. Stage-release.system is an crushingsleeve made by Claus (batkiter).
But here are some pictures (If i currently have some time I will paint the rocket)
Greets from Germany
Thomas
Welcome to the forum and the WRA2 Thomas
Lisa Walker, Forum Administrator. The Water Rocket Achievement World Record Association
I'm Thomas from Germany and this is my first post in this forum . I would like to show you my new two-stage-rocket. It is an SST-rocket with an 5,1 liter Booster and an 2,3 liter sustainer. Both tanks are tested to 13bar (188 psi). Recovery Sytem is a simple tommy-timmer system. Stage-release.system is an crushingsleeve made by Claus (batkiter).
But here are some pictures (If i currently have some time I will paint the rocket):
zweistufige 001klein.jpg
zweistufige 004klein.jpg
Greets from Germany
Thomas
Hi Thomas! Welcome to the forum! I don't know what an SST-rocket is. Can you explain what SST means?
Befor I can fly the rocket i have to make 2 new parachutes and a new launcher. But the simulator says that the rocket fly up to 300Meters (984 feet) when I use 11bar . I don't know wheter I use a altimeter
When I use a Cable Tie Launcher for the booster a litel bit higher (nozzle diameter of the sustainer is 9mm). Here a picture of the launcher I want to build.
Befor I can fly the rocket i have to make 2 new parachutes and a new launcher. But the simulator says that the rocket fly up to 300Meters (984 feet) when I use 11bar . I don't know wheter I use a altimeter
When I use a Cable Tie Launcher for the booster a litel bit higher (nozzle diameter of the sustainer is 9mm). Here a picture of the launcher I want to build.
startrampe3d.jpg
Thomas,
Where did you get the picture of the launcher? Are there plans available for this design? It looks really impressive. I would like to improve my launcher so that it doesn't look like an amateur built it. People would be impressed if I had a launcher that looked as good as that.
This picture of the Launcher I made by my self. It is a picture out of Solide Edge. There aren't any plans for this launching base. I will build it out of 18mm phenolic resin coated plywood plates. The Cabletielauncher is made out of steel, the nozzle material is POM, a very strong kind of plastic. I can screw every kind of launcher on it (Gardena normal (9mm), Gardena profi (15mm) and Cable Tie (22mm).
Here is a picture of the calbe tie Launcher with base plate (No cableties in this image).
ctasm.jpg (13.56 KiB) Viewed 137 times
Fot stabilizing the rocket on the first meter I can use 3 aluminium tubes, ore a 6mm ITEM-Rail, which is used by the german pyro-rocketyrs.
I can post a plan if there is use.
Thomas
Befor I can fly the rocket i have to make 2 new parachutes and a new launcher. But the simulator says that the rocket fly up to 300Meters (984 feet) when I use 11bar . I don't know wheter I use a altimeter
When I use a Cable Tie Launcher for the booster a litel bit higher (nozzle diameter of the sustainer is 9mm). Here a picture of the launcher I want to build.
startrampe3d.jpg
Thomas,
Where did you get the picture of the launcher? Are there plans available for this design? It looks really impressive. I would like to improve my launcher so that it doesn't look like an amateur built it. People would be impressed if I had a launcher that looked as good as that.
Our launcher is made from steel water pipes and pressure treated lumber. It's 7 years old, so it's nicely weathered too. Nobody seems to notice it at all when the rocket is on it.
schmidi093 wrote:Ready for take off with the new launchpad :
Startrampedoku 015.jpg
Thomas
That's a really well made launcher. You have done a really professional job. Nice work! The bike wheel is a really cool idea to connect the launch rails and allow clearance for the fins to pass through.
. I would like to show you my new two-stage-rocket. It is an SST-rocket with an 5,1 liter Booster and an 2,3 liter sustainer. Both tanks are tested to 13bar (188 psi). Recovery Sytem is a simple tommy-timmer system. Stage-release.system is an crushingsleeve made by Claus (batkiter).
. That means that we have bottles that are used more than one time. Becaus the bottles have to be more stronger they have a greater wall thickness. A single bottle can hold more than 18-20bars (260-290 psi) without exploding, but when you splice them I would not go over the 13 bars (188psi) but some testsplices already held 16 bars (230 psi)(limit of my handpump). 
. I don't know wheter I use a altimeter
