DDT video!!!

Harness the power of precision mixtures of pressurized flammable vapor. Safety first! These are advanced potato guns - not for the beginner.
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SpudFarm
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Sat Mar 15, 2008 4:13 pm

i did a easy search on youtube and got some results...
(look at other videos of this guy)[youtube][/youtube]
Last edited by SpudFarm on Sat Mar 15, 2008 4:24 pm, edited 1 time in total.
"Made in France"
- A spud gun insurance.
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SpudUke5
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Sat Mar 15, 2008 4:15 pm

Link doesnt work
4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
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POLAND_SPUD
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Sat Mar 15, 2008 4:20 pm

oh jesus just remove the last 3 letters 'url'

EDIT
it's ok now
Last edited by POLAND_SPUD on Sat Mar 15, 2008 4:27 pm, edited 1 time in total.
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potatoflinger
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Sat Mar 15, 2008 4:27 pm

Wow, that's pretty impressive!
It's hard to soar with eagles when you're working with turkeys.
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brogdenlaxmiddie
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Sat Mar 15, 2008 4:27 pm

wow..... That was pretty damn amazing :D I like how the flag in the back was like POOSHH everytime it fired....
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Hotwired
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Sat Mar 15, 2008 4:33 pm

Thats a hell of a test rig. Looks like a porcupine.

Interesting stuff. You can certainly see that the detonation is significantly more violent than the deflagration.

*edit: thats not just a test rig. It's a pulse detonation engine :shock:
Last edited by Hotwired on Sat Mar 15, 2008 4:36 pm, edited 2 times in total.
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SpudFarm
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Sat Mar 15, 2008 4:33 pm

larda has build one also (that smart bastard JK)
i just though (barrel on that thing)
"Made in France"
- A spud gun insurance.
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D_Hall
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Sat Mar 15, 2008 4:42 pm

Meh... Try this one on for size. ;) 'Tis a little toy we played with at the office a few years ago...

Image

link to video
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SpudFarm
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Sat Mar 15, 2008 4:51 pm

wow that was nice... :)
"Made in France"
- A spud gun insurance.
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SpudFarm
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Sat Mar 15, 2008 5:25 pm

http://www.ptb.de/en/org/3/34/342/e-u-f/animation3.gif
detonation in clear pipe...
"Made in France"
- A spud gun insurance.
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DYI
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Sat Mar 15, 2008 6:03 pm

It seemed that the first video wasn't operating at anywhere near a high enough frequency to generate useful thrust. But it was probably just tuned down somehow.

D_Hall's device, on the other hand... :twisted:
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.
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D_Hall
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Sat Mar 15, 2008 6:12 pm

To be fair, 'tweren't my device. 'Twere Pratt & Whitney's device (we just got to do some testing for P&W).
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SpudFarm
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Sat Mar 15, 2008 6:25 pm

DYI i said look at the other vids of that guy...
there is a hydrogen/oxygen at 25HZ there..
"Made in France"
- A spud gun insurance.
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potatoflinger
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Sat Mar 15, 2008 7:42 pm

I like this video a little better though...
It's hard to soar with eagles when you're working with turkeys.
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Matheusilla
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Sat Mar 15, 2008 7:49 pm

Holy friggin crap! Now there's some engineering! I've never seen anything so efficient.
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