Search found 100 matches

by Rescyou
Wed Mar 03, 2004 8:27 pm
Forum: Gas turbine forum
Topic: shafts parameters
Replies: 1
Views: 2606

Shaft-Info

Possible info: http://www.alleghenytechnologies.com/allvac/pages/steel/Default.htm http://www.msm.cam.ac.uk/phase-trans/mphil/Trent1/ http://www.maher.co.uk/alloys.php http://www.ashot.co.il/aerospace2.htm I would suggest you check out a patent site such as gb.espacenet.com and do a little looking t...
by Rescyou
Wed Mar 03, 2004 1:59 am
Forum: Valved pulsejet forum
Topic: A shot in the dark
Replies: 2
Views: 2330

JPL

I do believe Matt has or has access to this document as it is sighted in the biographical section of his p-jet report (woohoo I made the biography too):

http://www.carbonos.com/pulsejet/

Some good reading too.

s.
by Rescyou
Mon Mar 01, 2004 4:21 pm
Forum: Tools and Construction
Topic: Vacuum forming sheet metal
Replies: 16
Views: 13875

Helium

Viv, I think I have to majority of the Helium system but I haven't messed with the cryopump at all. I've been just itching to dismantle the T-Mole-Pump to get at the rotors, but I think I'll just keep it complete for the moment. For those that have never seen the rotors/stators on one of these, chec...
by Rescyou
Mon Mar 01, 2004 3:48 pm
Forum: Tools and Construction
Topic: Vacuum forming sheet metal
Replies: 16
Views: 13875

One word

One word Viv, "EBAY" I was looking at the molec. pumps because of they have some pretty funky compressor blades and snagged one on eBay for about $50. The guy didn't know what it was and sent it as well as some other misc. pieces, one of which was a cryo pump. So Shane got himself about $15000 worth...
by Rescyou
Mon Mar 01, 2004 3:59 am
Forum: Tools and Construction
Topic: Vacuum forming sheet metal
Replies: 16
Views: 13875

Sucking the grey off a battleship..

Whilst looking for some super sucker projects I came across this article for those that are interested in things that suck:

http://www.dream-models.com/h/vacuumpump.html

s.
by Rescyou
Mon Mar 01, 2004 2:58 am
Forum: Tools and Construction
Topic: Vacuum forming sheet metal
Replies: 16
Views: 13875

Really Sux

I have a 5x10^-7 Torr cryo/turbo molecular pump and some other toys that can suck a Boeing 747 through a garden hose, I might just have to retrofit it a bit and try some vacuum-forming as I was messing with the pumps for some plasma stuff and it didn't even dawn on me for vac forming.

s.
by Rescyou
Sun Feb 29, 2004 6:33 pm
Forum: Valved pulsejet forum
Topic: Starting My First Pulse Jet
Replies: 13
Views: 10162

Spark

Unless Darth Bruce has changed that circuit diagram lately, it does not function or does not function correctly. Checkout: http://www.pulse-jets.com/phpbb2/viewtopic.php?t=287 One thing that I tried was using steel wool and a battery and it worked OK in a pinch. Just stick two wires in a small clump...
by Rescyou
Sat Feb 28, 2004 5:03 pm
Forum: Valved pulsejet forum
Topic: Where can i get a flow jector
Replies: 5
Views: 3739

Jectors

Unfortunately what you ask, is like asking for a sparkplug for a 150hp engine, there are 200 diferent 150hp engine configurations out there.. There are many variables: Internal direct inject External 100 different types of fuels Position within the interior/exterior Size of the combustion chamber Sp...
by Rescyou
Sat Feb 28, 2004 5:08 am
Forum: Valved pulsejet forum
Topic: Where can i get a flow jector
Replies: 5
Views: 3739

Flowjector's R' Us

Where are you in Canada, and what F-jector do you want?

s.
by Rescyou
Fri Feb 27, 2004 7:15 pm
Forum: Ramjet forum
Topic: Dump Ramjet Design
Replies: 20
Views: 16174

LPG

Here's a nice little bit of info on properties of various fuel gases: http://www.krona.srv.br/display05_engl.htm The Good Stuff: http://www.gichd.ch/pdf/TN_09_30__04__2001_FAE%20_Version%201.pdf Good Info: http://hypersonic2002.aaaf.asso.fr/received.html http://www.popsci.com/popsci/aviation/article...
by Rescyou
Fri Feb 27, 2004 12:57 am
Forum: Valved pulsejet forum
Topic: Please give me help here!!!!
Replies: 25
Views: 14690

Big lakes

I've often wondered how those things would fair when foul weather sets in. That's probably one of the reasons they're not so mainstream as big-ass waves would pretty much put them out of action I would think.

S.
by Rescyou
Thu Feb 26, 2004 9:23 pm
Forum: Ramjet forum
Topic: Dump Ramjet Design
Replies: 20
Views: 16174

ethylene

Is ethylene in a gaseous state then? I haven't messed much with it. If ethylene is in the liquid state however it will be essentially uncompressable like water. You can put 8000psi on it and when you open the valve, your going to get a few cc's of the fluid by the time it's back to zero. The only wa...
by Rescyou
Thu Feb 26, 2004 12:01 am
Forum: Valved pulsejet forum
Topic: Please give me help here!!!!
Replies: 25
Views: 14690

Boomsticks

It appears you do not know the fundamentals with respect to this type of engine. You should have a good read through Kenneths site here as were as other sources around. Best bet is to build you jet first so you get some experience in it's workings and then once you've gotten the hang of it, then sta...
by Rescyou
Wed Feb 25, 2004 8:45 pm
Forum: Valved pulsejet forum
Topic: Please give me help here!!!!
Replies: 25
Views: 14690

RC

You could use an rc-servo on a fuel needle valve. But also remember there is a point at which the p-jet will not function so it is impossible to throttle it from 0 to 100% unless you can add enough weight to the car so that at the minumum thrust ouput the car won't move or combine the decelleration ...
by Rescyou
Wed Feb 25, 2004 4:21 pm
Forum: Ramjet forum
Topic: Dump Ramjet Design
Replies: 20
Views: 16174

Pressure

What type of system are you going to use to pressurize the fuel cylinder?

S.