SpudFiles

you say a small area? is 2000cc small? my hybrid has much less...
And piston movement... is like the disc bursting..
Im quite sure about ddt that its hard to let happen... I think you have much more chance if u would use pure O2..
If no one had a ddt ... then who came on this idea. if it hasnt been proven i don't believe it..... If im correct the water pressure hybrid used 7 times mix.. so where's the ddt?

My fittings ar all class 300.. 2000 psi.. is rated so burst presure is higher and thats for the hand held.. i want to try 7x at least. i will post it when i go above 5x mix 8)
Hope i live through
As for my 20x mix Hybrid (burst pressure 725 bar) thats like 11000 psi hope its enough.
Cheers

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SpudBlaster, DR did shoot the hybrid at 5x. He said it was out of pure stupidity and would never be attempted again.
I have experimented with DDT, and used a 1/2" Sch 80 steel x 5 foot combustion chamber at 6x with one spark in the very end. It didn't blow, but did cause the steel to actually bulge outwards in a "blister" near the union.

that is amazing one day i am going to build a hybrid my potato cannon goal is to break a sound barrier i have to have alot of time to figure out the workings to get it i am going to work on making a really good pneumatic and then a good combustion to get ready for making a hybrid

I have experimented with DDT, and used a 1/2" Sch 80 steel x 5 foot combustion chamber at 6x with one spark in the very end. It didn't blow, but did cause the steel to actually bulge outwards in a "blister" near the union.

Was there a burstdisk in the union, or was the blast entirely contained?
I can't imagine 1/2" sch80 warping that much. I mean, how many thousand psi is it rated for?
I guess I won't push my hybrid past 4x. I don't really feel like getting parts of my hand re-attached.

There were 2 layers of 1/32" sheet steel as a burst disc. The report was, as you can probably imagine, very loud.

So no DDT? then it must be possible to get 7x mix in a small chamber? and no DDT..
The i must conclude that if ure chamber is strong enough for like 300 bar.. you can probably get higher mixxes then 5... but only in a small chamber cause DDt needs a long way to occur... Right?

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could someone explain exactly how a hybrid works differently from pneumatic or combustion

A Hybrid cannon is a mix between the two. It uses a pressurized flammable gas (propane or MAPP) with enough pressurized air to allow it to ignite. It is many more times more powerful than either a pneumatic or combustion. Next time look it up in the wiki or use the search function

ok i will - thanks

Don't mention it

And by the way

WELCOME TO SPUDFILES

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SpudBlaster15 wrote:

daberno123 wrote:It is many more times more powerful than either a pneumatic or combustion.

Not necessarily, a pneumatic launcher running on multiple kpsi pressures and using helium will outperform every hybrid launcher currently in existence.

Now if we can only see one of those....

SpudBlaster15 wrote:You do not want to go above 5x. If you do, you risk DDT, which can cause even the strongest of steel chambers to rupture.

7x mix hybrid + hand held = blatant stupidity.

Then i guess i am <a href="http://www.spudfiles.com/forums/the-bra ... "Blatently Stupid"</a>