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Mythbusters Cannon
Posted: Wed Mar 24, 2010 11:11 pm
by deathbyDWV
On mythbusters tonight I saw they used a cannon to launch slush drinks. Did any one else?
It reminded me of tech's qdv...
Does anyone know what type of cannon it was?
I was thinking maybe a spool valve...
Posted: Thu Mar 25, 2010 8:07 pm
by twizi
i think its some type of spool
Posted: Sat Mar 27, 2010 8:46 am
by metalmeltr
What was that tank that held the air? It looked like the valve was incorperated into the tank.
Posted: Sat Mar 27, 2010 1:08 pm
by deathbyDWV
Yeah it looked like a propane tank. That's why I thought spool valve.
Posted: Sun Sep 12, 2010 3:14 am
by jackssmirkingrevenge
Found the episode online 
Handheld air cannon in the last couple of minutes.
Posted: Sun Sep 12, 2010 8:03 am
by Heimo
there are 2 different launchers in that episode...
this one
I have no idea how this one works but is probably works a lot like a QDV
then there is this one
this one uses a solenoid actuated valve, here is a pic of the valve from a different episode where they showed a close up
Posted: Sun Sep 12, 2010 8:22 am
by Crna Legija
they used the big red one in another episode to, when they tested if a car going forwards at 80mph and a gun shooting backwards would at 80mph would end up with the round just falling straight down.
Posted: Sun Sep 12, 2010 11:21 am
by Technician1002
That type valve is a large QEV used on hoppers to relieve gravel and such that jams and stops flowing. I've seen them used. They are used in the cement and coal industries. The piston in them is shaped like a hockey puck, so the style is a QEV, not a QDV. The cut away view on their site shows the valve housing is in the rear of the tank.
Here is one by Flotec;
http://www.aircannon.org/installations.html
That paticular tank and valve looks like one by Martin Engineering;
http://www.martin-eng.com/products/air- ... ccessories
