My new toy is on the way.

[Big Frank]

I saw a video of a rail-car implosion. SCIENCE! That would be awesome to see in person. The 55 gallon drum must have been too. Around here, making excessive noise is illegal (no fun aloud ) so shooting the can cannon is a vacation tine activity.

I still have some camo tape left and my CCU is setting here, so it will likely get some tape before long. Not the forend I don't think, but the receiver tube. Maybe a strip on top of the rail too. I already did the forearm of my VRF14 not-a-shotgun. I'll try to remember to post pics when I have it back together.

[alfsauve]

For my children's TV show's The Professor segment we did implode one.  The scream is genuine surprise by one of the cast, because it takes a while for the vacuum to build up.
I'll save you the full lenght, 5 minute setup portion, though co-starring with The Professor is Construction Charlie (me).


https://vimeo.com/1070385032?share=copy#t=0

[Rastus]

Some years ago out of Lafayette, LA, a coiled tubing company had an incident with a liquid nitrogen transport tank.  Liquid nitrogen is used to provide lift in old wells to clean them out, etc.  Anyway it's pumped through a heater and then down the well through a big coil of tubing.  Whilst unloading the transport the crane operator at the dock somehow dropped it in the water....which covered up the relief valve which vents nitrogen as the tank warms up.  The relief valve is a very normal thing as the transports always vent some nitrogen...however in this particular instance water got into the piping and froze as a solid block of ice in the vent piping to atmosphere.  About 2 AM the tank exploded and leveled a big industrial building..very violent and very fortunate no one was working that night as anyone within the fenced area would have been killed. 

[Big Frank]

  Extremes of pressure and temperature are nothing to treat casually. Here's a video of a rail tanker imploding. I wonder how much vacuum it was pulling? The last 6 seconds of music is Sirius by The Alan Parsons Project.



https://www.youtube.com/watch?v=Zz95_VvTxZM


https://www.youtube.com/watch?v=OkC_oi0ksuw

[MikeBjerum]

  Extremes of pressure and temperature are nothing to treat casually. Here's a video of a rail tanker imploding. I wonder how much vacuum it was pulling?

It takes very little vacuum to collapse a tank. Go to farm country and you will find a collapsed honey wagon in every town. VanDale and Balzer set their relief valves under 20". Replacement valves were typically built with a 15" limit. Our tank typically ran at 12", and I could lift 1,500 gallons eight feet in less than ten minutes.  Unloading was done at five pounds or less.

[Sponsor]

[Big Frank]

Wow!

To run a honey wagon business, you really have to know your s**t. 

[Big Frank]

I already put my old Devil Dog Concepts Tactical Hard Charger side charger on the can cannon. Then I cut a space out of the bottom of an M16A4 type detachable carry handle to fit around it and mounted it one slot back from the normal position. After that I modified an M203 quadrant sight to fit. These work on M16 style rifles with a fixed carrying handle, but not with a flattop with a detachable handle. I ground the last 50 meters off the bottom of the elevation scale so it fits snugly on top of the Hard Charger. And I had to replace the front knob of the carry handle with a hex nut and flat washer, and cut the stud off with a hacksaw blade to mount the modified quadrant sight. I may flip the nut over, and file the stud down while the nut's off, but it's good enough for now. But now the elevation arm only goes to 250 meters on what's left of the 450 meter scale. When the sight is deployed and depressed for range, it gets in the way of the cocking handle on the hard charger. But there's still has a latch in the normal charging handle location, so the bolt can be pulled back from the rear. I'm out of golf balls, but one of my friend's sons has a few.I think I'l see if he wants to shoot them in his back yard when the weather warms up again. This is the same lower I use with my 16" and 20" uppers, and I put the 16" back on. I have an original style Hard Charger coming next week for the 20" AR I bought this side charger for.

For future reference, there wasn't room to get my SIG Romeo MSR on the T-Rex offset Aimpoint mount mounted on the receiver, and not the forend. Not with my Athlon Armor cantilever mount in front of the Tactical Hard Charger mounted near the rear (slot #3). I would have to take it off and move the scope mount back farther, and still not have room for the rear sight. Since I can only use a red dot or folding sights, I'm going with the red dot. So I'll put my 3" offset Vortex Sport Series cantilever on instead. I can't use the folding offset sights with it because it has to be mounted so far back, but there will be room for the T-Rex offset mount between it and the front-mounting (last slot) Original model Hard Charger with a Tactical handle I ordered. I'll post pics in the appropriate thread when I get er done.

Looking at the pics and seeing the hacked off stud and scarred up nut bothers me. I'll have to fix it eventually, but plan on going back to bed soon.

[Big Frank]

I finally figured out how to add a sling to the Can Cannon, without duct taping a sling to it. I have an M16A2 Top Sling Adapter, made to carry the rifle "patrol style", horizontally, not in a low ready or high ready position. I ran the tail of the strap through the metal loop twice and pulled it tight. Then put 2 Strike Industries Bang Bands over the strap, then one in front of them. I pulled the strap back and put another Bang Band in front of the last one, then added a Samson QD socket to the front clamp. The Bang Bands did NOT want to stretch that far, but I wasn't taking no for an answer. I have the cable channel guides on all 4 Bang bands pointing straight up. They're ~1 band width from the muzzle, and with the strap behind the front one, the strap and QD socket should stay clear of the muzzle when it's slack.

https://www.strikeindustries.com/bangband.html



https://www.youtube.com/watch?v=DexJowYLSa4