Login    Register
User Information
We are a free and open
community, all are welcome.
Click here to Register
Who is online

In total there are 77 users online :: 4 registered, 0 hidden and 73 guests

Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Global Moderators
global_moderators.png CS


Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
  • Author

Unread postAuthor: starman » Tue Jun 10, 2008 4:43 pm

I'll chime in here ....Magnum, DO NOT fool with trying to nitrate ANYTHING, especially glycerine. The chemicals used (I assume you know what they are) are highly corrosive, fairly hard to get, and not cheap.

Also, hasn't this discussion gone too far already into high explosives no-no land??.
  • 0

User avatar
Donating Moderator
Donating Moderator
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: Ragnarok » Tue Jun 10, 2008 4:46 pm

starman wrote:Also, hasn't this discussion gone too far already into high explosives no-no land??.

Good point, I'd forgotten that. Discussion of this is against forum rules:

Solid propellant: Any substance containing all the chemical elements required to enable sustained combustion without the presence of additional oxidizers.
1. For this purpose, nitroglycerine, though liquid, would qualify.

Where's a grumpy mod when you need one?
  • 0

Does that thing kinda look like a big cat to you?
User avatar
Chief of Staff
Chief of Staff
Posts: 5339
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK
Reputation: 8

Unread postAuthor: DYI » Tue Jun 10, 2008 5:11 pm

Nitroglycerine production factories are usually situated a few miles offshore, if that means anything to you. The resources required to produce and store even a tiny amount of it with any degree of safety would run up thousands of dollars. Also, you have no idea what you're doing, so don't even try it. They'll find the spudguns in whatever's left of your property, put two and two together, come up with -5, and decide that the whole hobby should be banned outright.

Why did this ridiculous discussion even start? The basic points are:
Vaporised alcohol is a decent, if somewhat tricky fuel
Glycerine on its own isn't going to do anything other than complicate things further
Putting concentrated acid (especially nitric) in anything remotely resembling a normal spudgun is going to result in a very expensive puddle of paste
Putting any quantity of HE in anything remotely resembling a normal spudgun is not a method of enhancing power of said spudgun, it is a method of demolishing it

Go ahead and use alcohol as a fuel, but if you're going to kill yourself, find less creative ways to do it.
  • 0

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
User avatar
Lieutenant General
Lieutenant General
Posts: 2861
Joined: Sat Jul 07, 2007 8:18 pm
Location: The People's Republic of Canuckistan
Country: Turks and Caicos Islands (tc)
Reputation: 9

Unread postAuthor: BC Pneumatics » Tue Jun 10, 2008 6:13 pm

Nice recap DYI. Now, lets all move on.

If you didn't heed my advice, and ended up killing yourself, I would not be terribly remorseful.
  • 0

<a href="http://www.bcarms.com/"><img src="http://www.bcarms.com/images/store_logo.png" border="0"> </a>
User avatar
BC Pneumatics
Donating Member
Donating Member
Posts: 1089
Joined: Tue Jan 18, 2005 6:55 pm
Location: Fresno, CA
Reputation: 0


Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'