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 37 users online :: 3 registered, 0 hidden and 34 guests

Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

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

The Team
Global Moderators
global_moderators.png CS

Hydrogen spud gun

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: squeaks » Mon Jan 22, 2007 5:15 pm

Okay, BC, we won't get in a squeaking fight but I have to make two small points.

#1 electrolysis is a very efficient energy conversion, with some getting appr. 90% efficiency. Plus hydrogen COULD(just a guess) potentially be much more powerful than propane.

#2 The skin theory is just a theory. I would say to take the mythbusters' word as gospel would be stupid. On the other hand there are several good points for either side. On one hand, cotton burns really fast whereas the skin for the hindenburg just had the dope on it(which to my knowledge doesn't burn very fast). Now as to that jacobs ladder thing, anything will burn in a jacobs ladder. You could put concrete in a jacobs ladder and it'll burn. Also, it is rediculous to say that the hydrogen in the hindenburg did not ignite. The second that the skin burnt to expose the hydrogen to the air it would have ignited. On the other hand, the effect the hydrogen had on the blimps crash/explosion is unknown and probably will forever remain as such. Also, the mythbusters did show that the skin could create a small scale thermite reaction. It may have been larger if the mythbusters had the dope formula wrong. The main lesson behind the hindenburg is a simple one. No matter what don't fill your blimp with explosive and paint it with something that might just accelerate that.

Whoa, I just had a revelation. I wonder if the hindenburg was filled with helium would it have smothered the fire? Thermite does oxidize itself, but was there a great enough thermite concentration on the hindenburg? Too many questions, too little color on news reel footage. Anyone got a time machine :?:
  • 0

"Nine out of ten Americans agree that out of ten Americans one will always disagree with the other nine."
-Collin Mockery
Who's Line is it Anyway

Borrow money from a pessimist, he won't expect it back.

Posts: 326
Joined: Sun Oct 01, 2006 5:45 pm
Location: Enoch, UT(next to Cedar City)
Reputation: 0

Unread postAuthor: medievalman » Mon Jan 22, 2007 6:32 pm

Yeah, I might be able to send you one, but the shipping would cost a fortune! This is what the beast looks like:

:computer: :computer: :computer:
:clock: :iroc: :clock:

You Like? lol!
  • 0

Join the AirAssault Army!

Welcome to Minnesota, Land of 10,000 Lakes, and 10,000,000,000 Mosquitoes.
User avatar
Posts: 319
Joined: Tue Dec 05, 2006 5:52 pm
Location: Central Minnesota
Reputation: 0

Unread postAuthor: BC Pneumatics » Mon Jan 22, 2007 8:19 pm

#1.. Not sure what point you are making... I agree with that, thought it still is far from free.

#2 The reason they used a Joccob's Ladder was to test the theory that it was ignited by a spark jumping sections of the frame. After they colored the film, many people (That had witnessed the real deal) said that the colors that support the 'Thermite Theory' looked most like the even itself.
  • 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

Unread postAuthor: Mic Whitey » Mon Feb 12, 2007 5:42 pm

go for it. its sweet. i've done it. got the hydrogen from school. use a far away electric ignitor. and boom. i blew up one gun, too much boom.
  • 0

Mic Whitey
Posts: 7
Joined: Mon Feb 12, 2007 3:45 pm
Reputation: 0

Unread postAuthor: Kenny_McCormic » Mon Feb 12, 2007 11:13 pm

or aluminum abs seems to hold up better than pvc in a combustion also
  • 0

1st Lieutenant
1st Lieutenant
Posts: 283
Joined: Wed Jan 03, 2007 8:59 pm
Reputation: 0


Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot]

Reputation System ©'