... Yeah, you may be right, Gordon, though a naked bottle doesn't tell us much, since it just tumbles. And no, I'm afraid I don't know the maths at all, I was...
... info ... turns ... any ... I'll CC this to the water rocket list - others may well have comment to make. Joe More anon - it's 1:34am and I should be asleep...
Hi Russell, glad to hear that all of you are back home by now. I liked your reports so far and am looking forward for more (in some time). Probably you could...
... <tongue firmly in cheek throughout...> Cheating!? CHEATING!?!?! Surely you jest! Plastic pop bottles are what made it all possible in the first place, they...
Most of this is intuitively exactly what I was thinking. The comment about optimal strength to weight resulting from even and complete coverage by the...
... HISTORY LESSON FOR YOUNG-UNS When I was a kid, before pop-tops, before no-deposit No-return anything, not quite before plastic, but before plastic pop ...
... You can see this in my simulation, which shows the velocity and acceleration curves all the way to crash-down. I would agree with Gordon, most rockets do...
I didn't answer this ... before ... Essentially doesn't happen. If the rocket is stable then it goes where it is pointed for the few hundredths of a second...
... No gravity at tipover is still equal on all parts, thus relative to each other weightless. Have to reach sufficient velocity towards ground to have aero...
Hey Group, I just got an 1150 psi kick in the rear that is going to get me back into WR. From time to time I read the thread and just found out about the...
Thanks for your comments Steve. Perplexing subject and I am struggling for a baseline. Please correct the following. Assuming no design features, just liquid...
Welcome back! Weren't you on some canoe adventure? I didn't get any good chances this summer ... quite jealous :) Did you ever test your Spectra test vessel? ...
Hi Robert Hope your summer has been fun. The AG crew certainly helped ours be great. You are right. The record is good but the doin's is really fine. Glad...
... " with "or to". Unfortunately, "coast" is really rapid initial aerodynamic deceleration from that high peak velocety, unless you have really reduced peak...
... Backslide is also free fall. The only difference during backslide is that the rocket is now starting to move relative to the air, so drag force acting on...
... - Keeping a liquid "down" at this stage is difficult because the aerodynamic deceleration forces are very high relatively. In a 1.5l bottle rocket...
Tim/Steve, good summary of the forces on the rocket. A few additions: You can see the peak deceleration immediately after burnout using my simulator, both on...
... From: <cjh@...> To: <water-rockets@yahoogroups.com> Sent: Wednesday, September 03, 2003 4:26 PM Subject: Re: [water-rockets] Forces on a liquid ...
Since I am new to this sport, I will be asking a lot of the same old questions. Here is my first: I just built 3 FTC rockets, but had trouble choosing the...
Hi Group, I wondered why the last spam here got sent to me as a single mail in a digest by his own (I read all the mails as one daily digest). This mail is to...
Hey Group, Since I was away from the group a while I want to make sure I didn't miss anything about high pressure FTC Vessels. I had spectra warped FTC and...
... Watch the drag calculations. As diameter drops length rises as the square (as you know) and the drag gets nasty for exceptionally long thin vehicles. ... A...
First, I'd recommend finding some "PL Premium" construction adhesive (polyurethane). The adhesive you used may or may not work, but waiting a week is not...
... Yes, http://www.sumrallworks.com/rockets/carbontest.html I could not pop it at 600psi. I have enough sleeve to do a 8 footer (in progress). ... would take ...
... From: <txsnapper@...> ... than ... A definite change in the launch gear needed to play here. The challenge is going to be the seems on ... My thoughts...
