OK, Thats WC.. now how do they seriously work?

K

Kinnear

Spaceman
Thats WC, but now how do afterburners REALLY work?

WCNEWS posted a question for me, and I'm going to ask it again here. How do afterburners REALLY work? Not like the WC related post just below - I'm building a 1:1 scale model Excalibur in my warehouse, and one of the problems I'm forseeing is how to make a realistic exhaust flamejet. WITHOUT using a jet engine, of course. Can anyone help me with this? I know there are special fx devices to do this, but I don't know how to make one.

+Kinnear
 
people already said how a real one works, pretty much extra fuel is released into the exhaust of the engine and it is ignited.
 
ok, but how am i going to do that in realistic terms as a special effect in my model excalibur. I can't just add extra fuel to the combustion.. i don't have a jet engine. :)
 
Flyable model? :eek:

Well, there's always the ad section in Popular Mechanics...they seem to know a lot more about these things than mere people...
 
Ummm. What you're talking about is building a flamethrower onto the back of a model Excal :O

I guess in simple terms, all (and its a pretty big all) you'd need is a pressurized fuel source (probably LPG or something), a nozzle to squirt it through and and a flame to ignite it. You're looking at a bunsen burner or a gas barbeque, except on a large scale.

Alternatively you could go for some kind of firework or special effects device or something.

Either way, what we're looking at is a great big flame in an enclosed space. Not something I'd be looking at doing without serious professional help.

Then of course there's the fact that, although it sounds (and should look) impressive, WC ships don't get an afterburner flame. IIRC the engine glow changes color, but that's about it.
 
First of all.. no, it's not going to be flyable. Its for a photo shoot, and simply for the same enjoyment people get out of making little plastic kitsets. :) And when it's done I'll rip it down.

Originally posted by AzraeL
Ummm. What you're talking about is building a flamethrower onto the back of a model Excal :O
You're looking at a bunsen burner or a gas barbeque, except on a large scale.
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Thats what I'm planning on, yes. And the method you described is pretty much exactly how I will have to construct it, unless anyone has a better idea.

Either way, what we're looking at is a great big flame in an enclosed space. Not something I'd be looking at doing without serious professional help.
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Ie, get a neighborhood kid to testfire it before I do.. i thought of this in advance. ;)

Another question.. what should I use? LPG? CNG? HYDROGEN?

+Kinnear
 
Originally posted by Ghost
In WCP,Wc3, WC4 IIRc the flame extends a bit specially, as Wedge says, in WCP
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In Wc1 and 2 they extend and change the colour IIRC. A very nice colour combinatione even... :)
 
Why not just go down to MacAullife station and grab one of those decaying fighters Tolwyn saw lined up. :)
 
that, lehah, is cause we dont live in our own little dream world and can just pop in and steal a fighter :)

use hydrogen! its fun! :D
 
Why use hydrogen when you can just use the Cold Fussion formula I just made? :D
 
Originally posted by Michael_A
I think the admin's need a new rule "Only post when you are sober".
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That wouldn't help, because my toxicant of choice is insanity! :D
 
Originally posted by Newcommanderondablock
HYDROGEN??? i dont think so...
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Aww.. but it'd be so much fun! Remember the Hindenburg..
CNG? i have no idea what THAT is!
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Compressed Natural gas.
LPG is probbably best, but you would need a helluva lot!
Do you have the $$$?
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Well, I only need enough to burn long enough to take a photo.. take that much, multiply by the cost of testing, and development which would amount to about 40 testfires.. (30 if i get it right early on), plus sealing joint problems (which account on average for 3 testfires worth of fuel), and that'd come to around $120.. with a budget of $3000 for this project, i can handle it. :) Although, I've already spent around $2000 of that just for the computer displays and cockpit internals. :\

+Kinnear
 
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