Ask not...
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Ask not...
... what water rocketry can do for you. Ask what you can do for water rocketry.
My achievement this weekend
Regards
Soren
My achievement this weekend
Regards
Soren
- Attachments
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- badamm.JPG (103.38 KiB) Viewed 316 times
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Re: Ask not...
Wow !! Well done...
Did that rocket actually go through the tiles?
I still have a rocket sittin' on neighbour's roof too!!! Don't know if he even knows...
Did that rocket actually go through the tiles?
I still have a rocket sittin' on neighbour's roof too!!! Don't know if he even knows...
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Re: Ask not...
NICE
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Re: Ask not...
Hi,
Ooooh yeah it broke one tile and went through. There was a piece of 63 mm PVC pipe in front of the rocket, as weight (probably not even 100 grams). That must have been hard enough to smash the tile.
But as you can see, the roof is a bit aged. With holes in it too, now. Obviously a pre space age, non-rocketproof roof.
Regards
Soren
Ooooh yeah it broke one tile and went through. There was a piece of 63 mm PVC pipe in front of the rocket, as weight (probably not even 100 grams). That must have been hard enough to smash the tile.
But as you can see, the roof is a bit aged. With holes in it too, now. Obviously a pre space age, non-rocketproof roof.
Regards
Soren
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Re: Ask not...
Here are a few more pics of the flight. I can't wait to get the movie out of the onboard cam - as soon as I get the USB connector soldered back on, or get a card reader.
Now, does anyone have an idea for something else I can use for a weight in a rocket? In simulations, and in reality too as far as I can see, adding weight to a rocket improves (peak altitude) performance in some cases. There will simply be more kinetic energy to overcome wind resistance.
Ideally, one of course just adds weight by using a stronger pressure vessel. But I have only the PET bottles now, and I have to get away from flying hammers.
I want my weight:
- either soft (softer than a water tank, which can still pack quite a punch), or located behind a PET bottle crumble zone (maybe 1/3 down the rocket)
- nice and dense, not bulky
- if located around the sides of the pressure vessel, then it should not fragment in an explosion
Any ideas? Other than wrapping the rocket with 13 rolls of packing tape?
Regards
Soren
Now, does anyone have an idea for something else I can use for a weight in a rocket? In simulations, and in reality too as far as I can see, adding weight to a rocket improves (peak altitude) performance in some cases. There will simply be more kinetic energy to overcome wind resistance.
Ideally, one of course just adds weight by using a stronger pressure vessel. But I have only the PET bottles now, and I have to get away from flying hammers.
I want my weight:
- either soft (softer than a water tank, which can still pack quite a punch), or located behind a PET bottle crumble zone (maybe 1/3 down the rocket)
- nice and dense, not bulky
- if located around the sides of the pressure vessel, then it should not fragment in an explosion
Any ideas? Other than wrapping the rocket with 13 rolls of packing tape?
Regards
Soren
- Attachments
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- Impact crater from below.
- badamm2.JPG (75.87 KiB) Viewed 301 times
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- Me with the rocket, for size comparison. I'm 184 cm.
The rocket splice configuration is:
<CC]|SS|[CC>|SS|[CC>
(a CocaCola with top and bottom not cut off, spliced with a SSPrite, top and bottom cut off .. etc.
A 2 liter Coca-Cola fits *perfectly* into a 2 liter Sprite. The latter is a tiny bit larger.
I chose that configuration because it is easy to assemble, and it has bulkheads inside the rocket to dampen the air flows if the rocket should explode.
I have another |SS|[CC> section ready for extending the rocket, if I should want to. - badamm4.jpg (116.42 KiB) Viewed 305 times
- Me with the rocket, for size comparison. I'm 184 cm.
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- Rocket on sky.
The air flap, the transparent PVC pipe, the parachute, the battery and USB plug to supplement the weak built-in battery of the camera are all visible. - badamm3.JPG (83.74 KiB) Viewed 298 times
- Rocket on sky.
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- Another beautiful lift-off. Until you compare the axis of the vapor trail with that of the rocket. Is was simply thrusting in the wrong direction!
I guess I will have to secure those carburetor pipes of mine in both ends. - badamm5.JPG (54.66 KiB) Viewed 307 times
- Another beautiful lift-off. Until you compare the axis of the vapor trail with that of the rocket. Is was simply thrusting in the wrong direction!
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- We have an anomaly ... parabolic flight, no chute deployment ... secure the area...
- badamm6.JPG (40.83 KiB) Viewed 288 times
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Re: Ask not...
Nice little adventure you had there. Looking forward to seeing the onboard video.
Congratulations on making the 4,000th post.
Congratulations on making the 4,000th post.
Lisa Walker,
Forum Administrator.
The Water Rocket Achievement World Record Association
Forum Administrator.
The Water Rocket Achievement World Record Association
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Re: Ask not...
hahaha...
Water Rockets are amazing things, One second there sitting on the launch pad, the next, splattered all over your shirt.
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Re: Ask not...
Hi Soren,dongfang wrote:Here are a few more pics of the flight. I can't wait to get the movie out of the onboard cam - as soon as I get the USB connector soldered back on, or get a card reader.
Now, does anyone have an idea for something else I can use for a weight in a rocket? In simulations, and in reality too as far as I can see, adding weight to a rocket improves (peak altitude) performance in some cases. There will simply be more kinetic energy to overcome wind resistance.
Ideally, one of course just adds weight by using a stronger pressure vessel. But I have only the PET bottles now, and I have to get away from flying hammers.
I want my weight:
- either soft (softer than a water tank, which can still pack quite a punch), or located behind a PET bottle crumble zone (maybe 1/3 down the rocket)
- nice and dense, not bulky
- if located around the sides of the pressure vessel, then it should not fragment in an explosion
Any ideas? Other than wrapping the rocket with 13 rolls of packing tape?
Regards
Soren
Sorry to hear about the roof, but the rocket looks great. Something you may want to try as a weight is a zip-lock plastic bag with water in it. You can easily change the amount of water in it depending on your needs. It will easily conform to the space you have available, whether in a crumple zone, or in between bottles. If the rocket goes boom, you only need to worry about water spray and a torn plastic bag.
http://www.AirCommandRockets.com
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Re: Ask not...
DARN, I can't find the movie on the SD card of the camera.
I will have to fly that monster again .....
(It actually flew pretty well, and came quite high for the lousy 6 bar of pressure I had in it. Next time, it will set a personal altitude record, I think).
Regards
Soren
I will have to fly that monster again .....
(It actually flew pretty well, and came quite high for the lousy 6 bar of pressure I had in it. Next time, it will set a personal altitude record, I think).
Regards
Soren
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Re: Ask not...
Soren:
Is there any reason you don't like modelling clay? (plasticine) Seems to tick all your boxes...
Is there any reason you don't like modelling clay? (plasticine) Seems to tick all your boxes...
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Re: Ask not...
Hi,
I don't know what it is
But if it some plastic (the adjective, not the noun) stuff, how would you attach it to the rocket? Roll it into strips and tape them on?
Is it natural clay, or full of solvents?
Regards
Soren
I don't know what it is
But if it some plastic (the adjective, not the noun) stuff, how would you attach it to the rocket? Roll it into strips and tape them on?
Is it natural clay, or full of solvents?
Regards
Soren
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Re: Ask not...
It is the brand name of a type of non-setting artificial modelling clay common in the UK/Commonwealth, I don't know if you'll recognise the description here <http://fr.wikipedia.org/wiki/P%C3%A2te_%C3%A0_modeler>dongfang wrote:Hi,
I don't know what it is
But if it some plastic (the adjective, not the noun) stuff, how would you attach it to the rocket? Roll it into strips and tape them on?
Is it natural clay, or full of solvents?
or English: <http://en.wikipedia.org/wiki/Plasticine>
Maybe that will remind you of a similar local brand. Very useful stuff.
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Re: Ask not...
Sounds like a plandongfang wrote:DARN, I can't find the movie on the SD card of the camera.
I will have to fly that monster again .....
(It actually flew pretty well, and came quite high for the lousy 6 bar of pressure I had in it. Next time, it will set a personal altitude record, I think).
Regards
Soren
Water Rockets are amazing things, One second there sitting on the launch pad, the next, splattered all over your shirt.
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Re: Ask not...
That's the most awesome water rocket crash I ever have seen!
Sorry about the rocket and roof.
Sorry about the rocket and roof.
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Re: Ask not...
THat's one of the best rocket pictures (sticking in the roof). That's the problem with launching, finding a safe place to do it. I used to launch in my driveway until one of my rockets almost crashed into the neighbor's Lexus. Now I need to find an open field close by ...