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  • Members: 743
  • Category: Rockets
  • Founded: Mar 23, 2003
  • Language: English
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Messages 9941 - 9970 of 11235   Oldest  |  < Older  |  Newer >  |  Newest
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9941 Clayton G
claytong_nz Offline Send Email
Sep 1, 2009
11:20 am
While you are discussing nozzles, here is what I have done in the past: Rather than a screw on nozzle I have glued on the Gardena style nozzles. However to get...
9942 toddjackrabbit Offline Send Email Sep 1, 2009
2:02 pm
We didnt get any testing done this weekend but we did manage to build a new rear wing for the rocket car. The logic of using a rear wing is to provide more...
9943 Ralph Oborn
polecatpop Offline Send Email
Sep 1, 2009
3:03 pm
Does the steering problems occur during the start or at speed? During thrust or during the runout? Would a short ( 1m) guide rod help to steer durring the...
9944 toddjackrabbit Offline Send Email Sep 1, 2009
3:16 pm
... Under low thrust it doesnt appear .. car runs pretty straight. Under high thrust it just steers off to the left or right ... High thrust phase ... I dont...
9945 Mike Passerotti
mikepasserotti Offline Send Email
Sep 1, 2009
3:43 pm
Todd, A friend of mine that drove funny car dragsters said that after he hit second gear the front wheels were off the ground and the steering wheel was...
9946 Bill Kuhl
billkuhl53 Offline Send Email
Sep 2, 2009
6:23 pm
The bellows air system worked well for about 7 launches and then crashed the next two. I taped the remains together and then the parachute deployed early the...
9947 toddjackrabbit Offline Send Email Sep 4, 2009
2:19 pm
A friend of mine that drove funny car dragsters said that after he hit second gear the front wheels were off the ground and the steering wheel was useless. He...
9948 toddjackrabbit Offline Send Email Sep 5, 2009
1:29 pm
After about our 4th attempt, we have finally managed to get a smaller diamter nozzle to work properly. We need these to even out the thrust on our water rocket...
9949 toddjackrabbit Offline Send Email Sep 9, 2009
1:58 pm
The list was a little quiet this week ... everyone busy I guess :) We had a launch day on the weekend to try out the new rear wing and 6mm nozzle. Good news is...
9950 houston_water_rockets
houston_wate... Offline Send Email
Sep 9, 2009
6:49 pm
I wonder if you chould turn the bottle to direct the thrust, instead of trying to steer the car. But I always over think stuff anyway! Ed...
9951 rubenlaan Offline Send Email Sep 9, 2009
9:27 pm
Hi Everybody, Been busy on some other projects (home made audio-speakers) lately so launching was delayed, mostly also due to horrible weather, good conditions...
9952 air.command Offline Send Email Sep 10, 2009
4:06 am
Very nice update on the water rocket car experiments Todd! Boy 96m so close too. :) When you switch the disks in your nozzle to restrict the flow, have you...
9953 air.command Offline Send Email Sep 10, 2009
4:15 am
Very nice find Ruben. :) An HD camera at that weight is very nice. I tried looking up a price for it, but was unable to find one. Is it a recent release? There...
9954 rubenlaan Offline Send Email Sep 10, 2009
6:08 am
Hi George, It looks like the price is still unknown at this point. I'm sure it will not be cheap though! Cheers Ruben...
9955 rubenlaan Offline Send Email Sep 10, 2009
6:08 am
Hi George, It looks like the price is still unknown at this point. I'm sure it will not be cheap though! Cheers Ruben...
9956 uswaterrockets Offline Send Email Sep 12, 2009
10:43 pm
Hi Ruben, We noticed that you were interested in seeing some HD footage taken from a water Rocket. We hope to satisfy your curiosity by inviting you to check...
9957 rubenlaan Offline Send Email Sep 13, 2009
7:11 am
Hi US WR, Do you guys have a name, John or Chris or whatever? I like the 3000 project a lot, great nosecone with payload section! Despite being HD the camera...
9958 air.command Offline Send Email Sep 15, 2009
1:50 pm
Hi Guys, We had a good flight day on Sunday. It was good to get something off the ground again. :) We flew a modified rocket that gave us a different ...
9959 Mike Passerotti
mikepasserotti Offline Send Email
Sep 15, 2009
2:31 pm
Great video! I could see how the foam generation changes the thrust. Unfortunatly, the foam is formed and then it is real hard to see what happens. But, you...
9960 rocker9455 Offline Send Email Sep 15, 2009
8:58 pm
Hi, I loved pauls website - it was really inspirational, i dont know if anyone has a backup or if paul himself has a backup or has relocated it now? Thanks, ...
9961 henning_torsteinsen
henning_tors... Offline Send Email
Sep 16, 2009
7:10 pm
Tested three more samples of PL400 today. Mixed results... Sample A failed somewhere between 18.8 and 22 kg. The water tank was full (18.8 L), so I unhooked...
9962 rubenlaan Offline Send Email Sep 16, 2009
7:15 pm
Hi George, Great stuff... I was thinking about doing something similar for my tumbler efforts... Since my camera only weighs 18 grams i' m going to do...
9963 George
air.command Offline Send Email
Sep 16, 2009
10:43 pm
Thanks Mike, :) You are right, we need to fly this without foam to get a better view of what the water is doing. I was going to add food colouring, but forgot...
9964 George
air.command Offline Send Email
Sep 16, 2009
10:51 pm
Hi Ruben, that sounds like a great idea. We all assume that a deployment system behaves a certain way in flight, but being able to see really how the mechanism...
9965 rubenlaan Offline Send Email Sep 17, 2009
7:38 pm
Hi George, Did you notice in the slow motion landing that the rocket actually bends into a curve hitting the ground and bounces back into shape as it falls...
9966 George
air.command Offline Send Email
Sep 18, 2009
12:10 am
Thanks for those glue results Henning. It seems like the PL400 is a pretty good glue if it was still able to hold 22.5Kg. Did that sample have the same bubble...
9967 George
air.command Offline Send Email
Sep 18, 2009
12:20 am
Hi Will, I agree, as was mentioned in the earlier thread (http://groups.yahoo.com/group/water-rockets/message/9901) it's sad to see such a great site gone. I...
9968 rocketsinbrighton
rocketsinbri... Offline Send Email
Sep 18, 2009
6:13 am
... I emailed him shortly after I discovered the site had closed. No reply, I'm afraid. His email address is paul-grosse AT ntlworld.com and you must put AG7Y...
9969 Todd
toddjackrabbit Offline Send Email
Sep 18, 2009
6:55 am
We have completed some more testing with reduced nozzle inserts and have the results posted on our website. We tested 6mm, 7mm, 8mm and 9mm nozzles and also an...
9970 Jan Petersen
henning_tors... Offline Send Email
Sep 18, 2009
7:49 am
... These were all loaded during cure, and I didn't observe the same air bubbles. The samples are the same strips used for the previous test, and I didn't...
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