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  • Members: 934
  • Category: Rockets
  • Founded: Mar 23, 2003
  • Language: English
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Messages 3897 - 3926 of 11235   Oldest  |  < Older  |  Newer >  |  Newest
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3897 Jon Mehlferber
jmehlferber Offline Send Email
Feb 3, 2005
3:02 am
Results of the First International Water Rocket Challenge: 500 mL and Under http://www.orgsites.com/va/bristolwaterrockets/_pgg1.php3 Thanks to all the...
3898 Jon Mehlferber
jmehlferber Offline Send Email
Feb 3, 2005
3:14 am
You probably are aware, but just in case--it has been down for several days. Jon...
3899 David G Leatham
dave698221 Offline Send Email
Feb 3, 2005
4:32 am
... From: "Jon Mehlferber" <jmehlferber@...> ... Hope that gets fixed. I was running sim on Clifford's site last thurs w/ no probs...and my links also...
3900 David G Leatham
dave698221 Offline Send Email
Feb 3, 2005
4:43 am
Forgot to mention,,, I managed to get my Bristol Launcher to let go around 140 psi by a careful adjustment of a hoseclamp that surrounds the capture. ((-;...
3901 David G Leatham
dave698221 Offline Send Email
Feb 3, 2005
4:47 am
... So spank you Jon. Howbout listing the other entrants? # must be U, me and Lonnie. I admit my entry was very weak, and yours was very strong. In fact,...
3902 Clifford Heath
clifford_heath4 Offline Send Email
Feb 3, 2005
4:58 am
Thanks Jon & David. You only need to email me, not the list, when it's down. As the server doesn't get monitored by our staff, nor by me, if it goes down, you...
3903 Lonnie Engbrecht
lexwaterockets Offline Send Email
Feb 3, 2005
5:21 am
Jon, and David. Nice job. Looking forward to round two. Lonnie...
3904 ake ottoson
ake_ottoson Offline Send Email
Feb 3, 2005
9:52 am
When and When and where will that be? WÄSTERÅS Aeronautics and Space Administration (WASA) will accept the challenge if it is possible. Åke Ottoson ... ...
3905 Jon Mehlferber
jmehlferber Offline Send Email
Feb 3, 2005
2:46 pm
Yes, David, it entries came from you me and Lonnie--not quite the "international" challenge I had hoped for--I guess I can only purport to be the "national...
3906 Jon Mehlferber
jmehlferber Offline Send Email
Feb 3, 2005
2:58 pm
My first contest, like any subsequent, will be open to anyone anywhere in the world. Playing by the rules is up to you--"honor system''--but I can check the...
3907 Jon Mehlferber
jmehlferber Offline Send Email
Feb 3, 2005
3:11 pm
Sorry--didn't know if your managesoft email was also tied to the server. Isn't weather fun? BTW: Your firewall program sounds very marketable--want to sell...
3908 David G Leatham
dave698221 Offline Send Email
Feb 3, 2005
5:26 pm
... From: "Jon Mehlferber" <jmehlferber@...> ... thanks. Not an exactly presision adjustment system, but is useful. Takes very little change to...
3909 David G Leatham
dave698221 Offline Send Email
Feb 3, 2005
6:07 pm
... From: "Jon Mehlferber" <jmehlferber@...> ... Any idea of the actual apogee as compared to duration? If you captured vid of the launch you can at...
3910 Gordon McDonough
gordonmcdipwrs Offline Send Email
Feb 5, 2005
8:04 pm
It is winter in the Northern Hemisphere, so last Wednesday, on a day school was canceled for snow, I did a little research rocketry in my kitchen. I took a...
3911 David G Leatham
dave698221 Offline Send Email
Feb 5, 2005
8:55 pm
... From: "Gordon McDonough" <gordo@...> ... Gordo, that's way too much fun. ((-; I've been wanting to find a lens to add to my small cam so it can be...
3912 ake ottoson
ake_ottoson Offline Send Email
Feb 6, 2005
7:05 pm
I was on Gordon McDonough home page. There you say I quote “Some have been shrunken from 500 ml to 400 ml using boiling water. “ Does this not make the...
3913 Jon Mehlferber
jmehlferber Offline Send Email
Feb 6, 2005
10:22 pm
Is it possible to come up with a SIM for side-gliding (AKA back-slider) rockets? I would think that if you could find out the CD of the rocket moving sideways...
3914 Lonnie Engbrecht
lexwaterockets Offline Send Email
Feb 6, 2005
10:33 pm
Not at all. I custom shrink 500 mil bottles down on wooden molds to get the shape I want. Never had one blow yet. Lonnie ... From: ake...
3915 Gordon McDonough
gordonmcdipwrs Offline Send Email
Feb 6, 2005
10:39 pm
I have never burst one of these bottles. I regularly run bottles up to around 120 psi. The bottles feel quite rigid after shrinking, and I had always assumed...
3916 David G Leatham
dave698221 Offline Send Email
Feb 7, 2005
12:21 am
... From: "ake ottoson" <ake.ottoson@...> ... Hi Åke I've successfully, repeatedly pressured this size of shrunken bottles to150psi. Not to say that...
3917 Jon Mehlferber
jmehlferber Offline Send Email
Feb 7, 2005
3:23 am
A nice trick is to fill the bottle with water first, then use the hot glue--the water takes the heat away so that the plastic is not affected. Jon...
3918 Jon Mehlferber
jmehlferber Offline Send Email
Feb 7, 2005
3:24 am
A neat trick is to fill the bottle with water first--the heat from the glue is sucked away by the water so that the plastic is not affected. Jon...
3919 Jon Mehlferber
jmehlferber Offline Send Email
Feb 7, 2005
3:30 am
A nice trick is to fill the bottle with water first, then use the hot glue--the water takes the heat away so that the plastic is not affected. Jon...
3920 Clifford Heath
clifford_heath4 Offline Send Email
Feb 7, 2005
3:40 am
... So you said :-). The water is also incompressible, so the bottle can't shrink....
3921 Gordon McDonough
gordonmcdipwrs Offline Send Email
Feb 7, 2005
3:47 am
I know it is unlawful to throw objects off the high bridges I stood on. (Rio Grande Gorge, Golden Gate, an amazing bridge in St. John, New Brunswick. Get...
3922 Gordon McDonough
gordonmcdipwrs Offline Send Email
Feb 7, 2005
4:53 am
There are also people out there who have used heat and pressure to stretch bottles. ('guppying' them) I don't know their pressures, but I don't recall...
3923 Gordon McDonough
gordonmcdipwrs Offline Send Email
Feb 7, 2005
4:55 am
I know it is unlawful to throw objects off the high bridges I have stood on. (Rio Grande Gorge, Golden Gate, an amazing bridge in St. John, New Brunswick....
3924 Jon Mehlferber
jmehlferber Offline Send Email
Feb 7, 2005
5:07 am
Sorry for all the repeats--hotmail is screwed up: may be switching to gmail or somthing else soon. Jon...
3925 David G Leatham
dave698221 Offline Send Email
Feb 7, 2005
8:37 am
... From: "Gordon McDonough" <gordo@...> ... I like that plan. Some of the local teachers have even been about at a launch of mine...havena heard back...
3926 Jon Mehlferber
jmehlferber Offline Send Email
Feb 7, 2005
9:23 pm
Sorry for all the repeats, hotmail has been a real pain lately, not allowing me to use Entourage to check/send mail, but not letting me know until after I hit...
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