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| blastopvc |
 Posted: 05/19/2006 8:10 AM Post subject: |
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Private
Joined: 12 May 2006
Posts: 5
0.00 Spud Bux
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| nice. but could u use clear pvc cus i like that better . it look kewler and works better |
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| SpudStuff |
| Posted: 05/19/2006 10:00 AM Post subject: |
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Major General
Joined: 10 Dec 2005
Posts: 1379
128.17 Spud Bux
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no you can't get clear sch 80 pipe that big to build a hybrid.
also if you could it would be like $200 for the chamber pipe alone
PS: learn to spell |
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| jrrdw |
| Posted: 05/19/2006 16:34 PM Post subject: |
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Donating Moderator
Joined: 16 Nov 2005
Posts: 3151
4891.55 Spud Bux
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| I like the wooden mount, keeps things a little safer. I'm wondering how long it took to build? Are you putting the disk inbetween the barrel and chamber? Noisie beast aint it! NICE CANNON, I LIKE IT!!!! GREAT BUILD!! |
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| boilingleadbath |
| Posted: 05/19/2006 20:02 PM Post subject: |
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Moderator
Joined: 12 Mar 2005
Posts: 1647
5491.22 Spud Bux
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| You can get 4" sch 80 clear PVC on mcmaster. It's 140$ for a 4' chunk and only rated to 160 psi, which makes it unsuitable for a high-mix hybrid. |
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| mnrocketman |
| Posted: 07/28/2006 19:35 PM Post subject: Nos hybrid Saftey |
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Private
Joined: 28 Jul 2006
Posts: 5
14.48 Spud Bux
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| I did some calulations, and if you started with a 70 psi Nos-Propane mix, the final pressure would be close to 1000 psi. It would also be about 3000 degrees F. Plastic will not hold that kind of pressure (or temp), but metal will. |
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| drac |
| Posted: 07/28/2006 22:38 PM Post subject: Re: Nos hybrid Saftey |
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Metalhead Moderator
Joined: 24 Apr 2005
Posts: 890
5160.49 Spud Bux
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| mnrocketman wrote: | | I did some calulations, and if you started with a 70 psi Nos-Propane mix, the final pressure would be close to 1000 psi. It would also be about 3000 degrees F. Plastic will not hold that kind of pressure (or temp), but metal will. |
Yes, and the NOS would also detonate the mixture, which I doubt even the steel coud withhold without being deformed or even burst. We tend to discourage the use of oxidizers due to the hazards that they present.
I'm intrigued though, how do you calculate thos figures? |
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| SpudStuff |
| Posted: 07/28/2006 23:03 PM Post subject: |
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Major General
Joined: 10 Dec 2005
Posts: 1379
128.17 Spud Bux
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| Yes good point is there a ACCURATE way you calculate thoes figures?[/b] |
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| Spyider |
| Posted: 07/30/2006 0:43 AM Post subject: |
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Staff Sergeant
Joined: 06 Jul 2006
Posts: 121
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| Quote: | | why dont you add nitrous oxide,like on dragsters?it is an oxidizer ,and would up the power to a whole nother level of insanity |
that would just be stupid pvc dont show up in x-ray but if you wana rask it ok.... |
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| Shrimphead |
| Posted: 07/30/2006 0:44 AM Post subject: |
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Colonel
Joined: 17 Nov 2005
Posts: 514
667.65 Spud Bux
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| Actually, people have proven that pvc does show up in x-rays. There was a topic on here a while ago. |
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| mnrocketman |
| Posted: 08/01/2006 12:04 PM Post subject: |
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Private
Joined: 28 Jul 2006
Posts: 5
14.48 Spud Bux
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| I did some basic chemistry to get those figures (PV=nRT). However, those calculations did not include the effect of detonation or efficiency, and that probably changes everything. |
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| zeigs spud |
| Posted: 10/14/2006 17:26 PM Post subject: |
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Colonel
Joined: 04 Apr 2006
Posts: 642
730.16 Spud Bux
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wow very nice hybrid. i like it alot  |
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| spud-tom |
| Posted: 11/18/2006 0:02 AM Post subject: |
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Corporal
Joined: 22 Oct 2006
Posts: 73
78.66 Spud Bux
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if i just put the barrel into the chamber and sealed it , then put the diaphragm in it,
would it work?
IS is true that hybryds are 2 as strong as pneumatic? |
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| SpudStuff |
| Posted: 11/18/2006 0:11 AM Post subject: |
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Major General
Joined: 10 Dec 2005
Posts: 1379
128.17 Spud Bux
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| Please stop kicking up dead topics to ask useless questions. That is not relevent to the topic at all. |
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