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

In total there are 56 users online :: 5 registered, 0 hidden and 51 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Semi-Hybrid?

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
Sponsored 
  • Author
    Message

Semi-Hybrid?

Unread postAuthor: Insomniac » Sun Sep 19, 2010 9:55 pm

This is continued from my successful hijack of JSR's topic :D

I'd post a proper description of what this is, but all the info is in JSR's thread and I've really got to get off the PC and study for some exams, so I'll leave you with some pictures and a nice cosy thread to discuss them in :wink:

See if you can figure out why I'm getting increased power from a mix that won't ignite from a piezo spark because it's so far off optimum, and whether it's fragments of aluminium which are rupturing the disk, or the pressure spike from a small, bright arc in a very small chamber.

The AA battery is just for scale.


Image

Image
  • 0

I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
User avatar
Insomniac
Major General
Major General
 
Posts: 1297
Joined: Mon Dec 18, 2006 3:47 pm
Location: Australia
Country: Australia (au)
Reputation: 0

Unread postAuthor: POLAND_SPUD » Sun Sep 19, 2010 10:26 pm

It seems it might be a cool way to ignite really high mixes
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Unread postAuthor: ilovefire » Sun Sep 19, 2010 11:01 pm

would it be that it would work kinda like this
  • 0

User avatar
ilovefire
Colonel
Colonel
 
Posts: 511
Joined: Sat May 22, 2010 6:48 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sun Sep 19, 2010 11:05 pm

[youtube]http://www.youtube.com/watch?v=ETxJvaQ4beM[/youtube]

Impressive :) actually worth the hijack ;)
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Insomniac » Mon Sep 20, 2010 2:42 am

[youtube]http://www.youtube.com/watch?v=VV1rmgHRUwI[/youtube]

250PSI and a double thickness burst disk... and now it only goes off with fuel, not with air... It's still a pretty rich mix (~5.8% butane or so), but it is a bona fide hybrid!
  • 0

I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
User avatar
Insomniac
Major General
Major General
 
Posts: 1297
Joined: Mon Dec 18, 2006 3:47 pm
Location: Australia
Country: Australia (au)
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Mon Sep 20, 2010 3:56 am

Can see why you test it in the toilet, with that kind of muzzle flash I'd be crapping myself too :roll: :D
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Insomniac » Mon Sep 20, 2010 4:23 am

:D

It's the only room with nothing too expensive in it! Though my first test shot into the towels scared me a little... I half expected to pull them back and see a shattered tile :roll:


EDIT: And of course, the real main reason why I test stuff there is that of all of the rooms in my house, it's the only one that's relatively non-flammable. :D
  • 0

I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
User avatar
Insomniac
Major General
Major General
 
Posts: 1297
Joined: Mon Dec 18, 2006 3:47 pm
Location: Australia
Country: Australia (au)
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Lockednloaded » Mon Sep 20, 2010 5:31 pm

cool looking setup, simple but effective. I was wondering if you could get a video of the aluminum foil doing whatever it does outside of the chamber
  • 0

I love lamp
User avatar
Lockednloaded
Major General
Major General
 
Posts: 1558
Joined: Thu Sep 03, 2009 9:38 pm
Location: Texas, USA
Reputation: 0

Unread postAuthor: Insomniac » Mon Sep 20, 2010 6:26 pm

Even better, here's a long exposure photo of what's happening within...

Image
  • 0

I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
User avatar
Insomniac
Major General
Major General
 
Posts: 1297
Joined: Mon Dec 18, 2006 3:47 pm
Location: Australia
Country: Australia (au)
Reputation: 0

Unread postAuthor: Lentamentalisk » Tue Sep 21, 2010 11:24 am

Wow, that photo is downright spectacular!
  • 0

Do not look back, and grieve over the past, for it is gone;
Do not be troubled about the future, for it has not yet come;
Live life in the present, and make it so beautiful that it will be worth remembering.
User avatar
Lentamentalisk
Brigadier General
Brigadier General
 
Posts: 1202
Joined: Tue Aug 07, 2007 5:27 pm
Location: Berkeley C.A.
Reputation: 0

Unread postAuthor: Insomniac » Wed Sep 22, 2010 2:57 am

Why thank you! :D

The thing pictured is actually my old drinking straw ETG, minus the barrel/chamber/drinking straw. I've got some more pictures in the same vein that I could upload later.
  • 0

I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
User avatar
Insomniac
Major General
Major General
 
Posts: 1297
Joined: Mon Dec 18, 2006 3:47 pm
Location: Australia
Country: Australia (au)
Reputation: 0

Unread postAuthor: Gun Freak » Wed Sep 22, 2010 3:55 pm

Yeah that really is a great picture, similar to the one in your avatar. What exactly is the one in your avatar?
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Return to Hybrid Cannon Discussion

Who is online

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

Reputation System ©'