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 41 users online :: 4 registered, 0 hidden and 37 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

The Pipe Dream lives...

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

Unread postAuthor: daberno123 » Tue Feb 12, 2008 3:04 pm

Where do you work that you have so much funding and materials on hand?

This will be an awesome gun if it gets built, taking spudding to a whole new level.

Good Luck
  • 0

User avatar
daberno123
Colonel
Colonel
 
Posts: 594
Joined: Mon Nov 19, 2007 5:56 pm
Location: Ohio
Reputation: 0

Unread postAuthor: psycix » Tue Feb 12, 2008 3:50 pm

D_Hall wrote:Oh, having re-read the old thread in the archives (thanks for the link) and the new one thing may sound redundant but isn't....

In the old thread I said I had the trailer; that there was an old hulk rotting in a field that I was laying claim to.

In this thread I say I have the trailer....


....but it's a different trailer. The trailer I now possess was (a) procured especially for this project and (b) is in magnificent condition.


Hmm thats one step ahead :)
Now do the rest, and realize your dreams.

You should contanct the guiness book of records, maybe theyve got a spot free for you :D
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: D_Hall » Tue Feb 12, 2008 7:38 pm

daberno123 wrote:Where do you work that you have so much funding and materials on hand?



The materials are "free" in that they're stuff left over from past projects. You know, you're building something... You order 1000' of pipe. At the end of the day you have 60' left over. What do you do with it? Well, we hang on to it in case we ever have a need for it and.... Well, that's where all the materials are coming from: the spare parts left over from the past 30 years or so of work around here.
  • 0

Last edited by D_Hall on Sat Oct 29, 2011 6:46 pm, edited 1 time in total.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: Ragnarok » Tue Feb 12, 2008 7:49 pm

D_Hall wrote:You know, you're building something... You order 1000' of pipe.

You know, something means I somehow doubt many spudders have ever experienced that...

... but of course, I order hundreds of yards of pipe all the time, and I always wonder what to do with that last few dozen feet because it has me completely stumped every time, but now I have the answer!
:D

Man, I'm in a silly mood.
  • 0

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

Unread postAuthor: spuzi14 » Tue Feb 12, 2008 8:38 pm

D_Hall I'm glad to see you still after this cannon! I forgot about it until now.
  • 0

www.thehurl.org <---Join it!

Those who live by the spudgun, die on the way to the plumbing store <---I don't know.
User avatar
spuzi14
Staff Sergeant
Staff Sergeant
 
Posts: 117
Joined: Sun Nov 06, 2005 9:11 pm
Location: Struthers Ohio
Reputation: 0

Unread postAuthor: D_Hall » Wed Feb 13, 2008 6:27 pm

Ho Lee Crap.

I'm beginning to think that fate is on my side and this thing may happen. In my original post I referenced a requirement for a 100 mm gun that can do 800 m/s. That was based on a conversation with management.

Today, management turned over the actual customer request.

I don't know where he got 800 m/s from. Maybe there's a gun out there that will do 800 m/s and he took that as the requirement? In any event, the actual doctument states a requirement for 333 m/s (1093 fps).

The Pipe Dream can do that!

So now I've got an actual customer requirement and a design already fleshed out. That REALLY greases the wheels for this sort of thing.
  • 0

User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: nabu92 » Wed Feb 13, 2008 6:38 pm

Wow 100 lbs at 1k fps?!
  • 0


nabu92
Sergeant
Sergeant
 
Posts: 94
Joined: Sat Jan 21, 2006 6:57 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: D_Hall » Wed Feb 13, 2008 6:51 pm

Well you don't think a gun that size is designed to launch golf balls, do you?
  • 0

User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: DYI » Wed Feb 13, 2008 7:14 pm

Well you could fire a grapeshot of ~1000 golfballs. Would be a bit over 100 pounds, but that would be an area roughly 17" long of the 19" barrel full of golfballs.

I'm assuming most ammo will be saboted in a low density material, since a 19" OD x 24" long ice slug would weigh 227 pounds, well over your set projectile mass.

That aside, if you get this built, I REALLY want to see what a 225 pound ice slug at 700 fps with 1 700 000 ft/lbs of muzzle energy will do to, say... a house :twisted:
  • 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
DYI
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: brogdenlaxmiddie » Wed Feb 13, 2008 8:25 pm

I have one and only one question- What in the hell would you use this for? And where do you work? :shock:
  • 0


brogdenlaxmiddie
Colonel
Colonel
 
Posts: 562
Joined: Sun Jul 22, 2007 2:19 pm
Country: United States (us)
Reputation: 0

Unread postAuthor: bigbob12345 » Wed Feb 13, 2008 8:31 pm

Thats two questions brogdenlaxmiddie.
And you should make a 1000lb slug aim it at some big tree and see what happens.
  • 0

User avatar
bigbob12345
Major General
Major General
 
Posts: 1516
Joined: Sat Dec 01, 2007 9:13 am
Location: Mercer Island,Washington
Reputation: 0

Unread postAuthor: D_Hall » Wed Feb 13, 2008 8:41 pm

brogdenlaxmiddie wrote:I have one and only one question- What in the hell would you use this for? And where do you work? :shock:


Where I work has already been stated in this thread (hint: it's even on this page!).

What I would use it for: Dynamic testing of missile components.
  • 0

User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: brogdenlaxmiddie » Wed Feb 13, 2008 8:48 pm

I see says the blind man.... All I can say is that you have one helluva awsome job :D
  • 0


brogdenlaxmiddie
Colonel
Colonel
 
Posts: 562
Joined: Sun Jul 22, 2007 2:19 pm
Country: United States (us)
Reputation: 0

Unread postAuthor: spuzi14 » Wed Feb 13, 2008 8:54 pm

I dream of your job D_Hall....I dream of it!

Are you gonna get to use this for like...recreational purposes as well?
  • 0

www.thehurl.org <---Join it!

Those who live by the spudgun, die on the way to the plumbing store <---I don't know.
User avatar
spuzi14
Staff Sergeant
Staff Sergeant
 
Posts: 117
Joined: Sun Nov 06, 2005 9:11 pm
Location: Struthers Ohio
Reputation: 0

Unread postAuthor: D_Hall » Wed Feb 13, 2008 9:25 pm

spuzi14 wrote:Are you gonna get to use this for like...recreational purposes as well?

Well, this is the kind of thing that Military PR guys dream of. Something that's big and makes smoke and fire but something that everybody thinks is fun and cool (ie, the anti-military types can't get too up in arms about). So yeah, I see a press release in the future if the gun gets built.

And in that press release? How does, "World's Largest Spudgun" sound?

And if it's gonna be a spud gun it's gotta shoot spuds, right?

I'm thinking that shooting a gunny sack full of potatoes would be appropriate (purely for public relations, of course).
  • 0

User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

PreviousNext

Return to Hybrid Cannon Discussion

Who is online

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

Reputation System ©'