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 85 users online :: 6 registered, 0 hidden and 79 guests


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

Registered users: Bing [Bot], BORIS_ELCIN, 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

Combustion Silencer????

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Combustion Silencer????

Unread postAuthor: Snikle » Mon Jun 27, 2005 10:23 am

Heay everyone ive just made my first spud cannon with my dad and a couple of mates. It fires great (see vid below)

The problem is that its too loud and i live in a residential area, it is perfectly safe to fire it in my garden as i have a huge wall at the end of my garden which can be seen at the end of the vid.

We had no idea how powerfull these things were and it shocked as all lol

But its too loud to fire regulary without the neigbours phoneing the police :), do silencers really work, and if so, does anyone have a good design for one.

Thanks snikle

http://www.elks1.demon.co.uk/ants/Spud%20Gun.mpg
  • 0


Snikle
Private
Private
 
Posts: 4
Joined: Mon Jun 27, 2005 10:14 am
Reputation: 0

Unread postAuthor: iamthewalrus » Mon Jun 27, 2005 10:44 am

boogieman has a good design on his site. http://www.advancedspuds.com
  • 0

i got connections with the modfia, watch who ur talkin to noob.


talk to me on AIM at iamthwalrus3
User avatar
iamthewalrus
Colonel
Colonel
 
Posts: 559
Joined: Mon Feb 28, 2005 9:28 pm
Location: Iowa (SO BORING!!)
Reputation: 0

Unread postAuthor: spudshot » Mon Jun 27, 2005 1:00 pm

well, judging from the way you talk you're british or australian, i dont know what the laws are there, but here you cant legally possess a silencer without a 200 dollar tax stamp, which is why we dont make "silencers" per say, but we make "extensions" :wink: :wink: :wink: you should have gotten the hint by now
  • 0

Image

spudshot
Brigadier General
Brigadier General
 
Posts: 1036
Joined: Sun Oct 03, 2004 7:16 am
Reputation: 0

Unread postAuthor: saladtossser » Mon Jun 27, 2005 1:36 pm

ya, these extension we are talking about have holes in them and by coincidence they reduce noise. how odd..
  • 0

"whoa... I thought pimpmann was black..."-pyromanic13
User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Unread postAuthor: iamthewalrus » Mon Jun 27, 2005 8:09 pm

o yeah, forgot to tell him about that, how strange of me.
  • 0

i got connections with the modfia, watch who ur talkin to noob.


talk to me on AIM at iamthwalrus3
User avatar
iamthewalrus
Colonel
Colonel
 
Posts: 559
Joined: Mon Feb 28, 2005 9:28 pm
Location: Iowa (SO BORING!!)
Reputation: 0

Unread postAuthor: Snikle » Tue Jun 28, 2005 5:34 am

Yer im British, so these "extensions" do they really work at reducing the noise in my "experiment on the expansion of gas" :lol:
  • 0


Snikle
Private
Private
 
Posts: 4
Joined: Mon Jun 27, 2005 10:14 am
Reputation: 0

Unread postAuthor: saladtossser » Tue Jun 28, 2005 6:26 am

yes roflmfao, and measure the speed of expansion by seeing how fast a potato moves in a tube.
  • 0

"whoa... I thought pimpmann was black..."-pyromanic13
User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Snikle » Tue Jun 28, 2005 11:03 am

but really do they work???
  • 0


Snikle
Private
Private
 
Posts: 4
Joined: Mon Jun 27, 2005 10:14 am
Reputation: 0

Unread postAuthor: spudshot » Tue Jun 28, 2005 11:13 am

yeah they do, i've got one for my mini
  • 0

Image

spudshot
Brigadier General
Brigadier General
 
Posts: 1036
Joined: Sun Oct 03, 2004 7:16 am
Reputation: 0

Unread postAuthor: Snikle » Tue Jun 28, 2005 11:17 am

kl thanks ill make one with the spare tubes i have left over from the cannon itself.
  • 0


Snikle
Private
Private
 
Posts: 4
Joined: Mon Jun 27, 2005 10:14 am
Reputation: 0

Unread postAuthor: boilingleadbath » Wed Jun 29, 2005 2:48 pm

Yeah, there certainly is a way to quiet a combustion, it's called: a longer barrel.

Seriously, make the barrel long enough that the C:B ratio is .7:1 or .8:1, and it will be pretty quiet.
It will make it more powerfull too!
  • 0

User avatar
boilingleadbath
Moderator
Moderator
 
Posts: 1642
Joined: Sat Mar 12, 2005 10:35 pm
Location: Pennsylvania, USA
Reputation: 0

Unread postAuthor: Kunta_Kinte » Thu Jun 30, 2005 12:08 pm

boilingleadbath wrote: C:B ratio is .7:1 or .8:1, and it will be pretty quiet.
It will make it more powerfull too!


so a for every 7" of the chamber add a 1' to the barrel.
  • 0

User avatar
Kunta_Kinte
Private
Private
 
Posts: 4
Joined: Thu Jun 23, 2005 7:38 pm
Reputation: 0

Unread postAuthor: saladtossser » Thu Jun 30, 2005 12:18 pm

that brings something up in my mind, does that equation work? and y somebody use c:b ration it a form like 0.5:1 while others use b:c and it's 2:1 :?: :?:
  • 0

"whoa... I thought pimpmann was black..."-pyromanic13
User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Unread postAuthor: spudshot » Thu Jun 30, 2005 1:30 pm

kunte you're really off on that, it goes by VOLUME not LENGTH .7 of the chamber volume= the barrel volume (1)
  • 0

Image

spudshot
Brigadier General
Brigadier General
 
Posts: 1036
Joined: Sun Oct 03, 2004 7:16 am
Reputation: 0

Unread postAuthor: cardinals08 » Sat Dec 24, 2005 1:56 am

the more barrel, the better then?
  • 0


cardinals08
1st Lieutenant
1st Lieutenant
 
Posts: 270
Joined: Thu Dec 22, 2005 5:07 pm
Reputation: 0

Next

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'