fire

All posts tagged fire

Check out this article from Las Vegas. It’s about the new 550′ Ferris wheel that can hold over 1100 people and the article highlights some of the planning that went in to possible rescue situations.

Kudos to the Las Vegas FD tech rescue team for being proactive in the situation. It looks like, should something ever happen, that it will be a complex mix of lead climbing, aid climbing, and some team based lowering. The fact that the fire dept. was consulted at all during construction is pretty neat too. Anchors were placed inside each pod so that a system could be hooked up and 3 victims at a time can be lowered.

Neat stuff!

http://www.reviewjournal.com/business/tourism/high-roller-emergency-will-require-high-intensity-response

ferris wheel

Thanks to my sister, Caity, for pointing this one out to us. It’s not rescue stuff, but be sure to check out her awesome website spiralspiritballooncompany.com. Lots of great sculptures there!

Here are two great videos from DRR Rescue posted on youtube that show how to construct a 1-1-1 picket system, which is three pickets placed in a row.

Two things stood out to me in these videos. First, I really like the system they used to tie the pickets together. I’ve seen a few different variations on the technique, most involving some sort of windlass to tighten the webbing. Doing that requires more hardware, as well as driving in another piece of rebar. The videos show what amounts to a non working 3:1 with webbing.

The second thing that really stood out was how much force this system was able to hold. They put over 6ooo lbs of force on the system. While the picket did flex a little bit, it did not noticeably pull forward in the ground. I’m anxious to try this in the rain soaked, clay dirt around my house!

Thanks again to DRR for sharing these with the world. Be sure to check out the tutorial section on the website as well as their field guide, that thing is full of great, easy to apply info.  http://www.desertrescue.com

The recent rescue by the South Walton Fire District’s Technical Rescue team in Florida is a great example of rescue where it is easy to access the victim by something as simple as a ladder, but where a rope based system might still be the best alternative for getting them down to the ground safely.

You can see in the pictures that the guys on the ground are able to guide the basket most of the way to the ground while it is supported on  the ladder and being lowered with rope.

Two quick points: If possible, I would have tried to line up my ladder with my anchors so that it was all in plumb. Maybe there is a good reason they didn’t. It’s hard to tell from just a picture.  Secondly, you can see how easily they overcame this by just having a rescuer on the roof do a very minor deflection by just pulling on the rope. It’s a good example of knowing how to easily overcome a problem by knowing a few physics tricks.

http://www.waltonsun.com/news/construction-worker-saved-by-swfd-1.297343#

Not all rope calls are high pucker factor incidents of life and death. Sometimes it’s just the simplest way of getting  the patient to the ground. Good job, guys.

 

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While I’d love to start the year on a high note, this video of a rope rescue demonstration brought out the Debbie Downer in me. How many rope rescue guys does it take t screw in a light bulb? Answer: 7.  One to screw it in and 6 to point out how he could have done it better and more safely.

 

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With that in mind, I’d like to talk about the video below. There are a few things that jump out at me:

  • Firefighting gear isn’t technical rescue gear. I’d argue you are better off with the increased flexibility of your station uniform. The brim on the back of a firefighting helmet is great at keeping water and junk from falling down the back of your coat at a fire; it’s also great at hanging up on rope, railings, and everything else at a rope call.
  • While there are several examples of a worse edge transition, this one was successful, but had the potential for disaster. The mainline system was run under the fencing and the basket was placed over it. This created the potential for a pretty big drop. A belay line did not appear to be in place until the rescuer climbed over the fence.
  • There was no obvious edge protection for the main line. If the basket had dropped prior to the attachment of the belay line, it would have taken a pretty substantial fall on an unprotected edge.
  • The belay line was not along the same plane as the main line. If the belay line were to be needed, there would have been significant horizontal movement.
  • If using webbing to help lower a basket over the edge, consider wrapping a Munter (Italian) hitch around the railing rather than strong arming it.
  • A high directional would have solved most of these problems. Even just going over the fence would have helped quite a bit.  To reinforce the fence and keep it from collapsing back towards the anchor due to the resultant, a reinforcing strut could be put into place pretty quickly. Like this:

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Well, after finally getting off of a 3 month ambulance rotation on “The Soulcrusher”, I’m hoping to be back in the swing of regular posts here on the website. In the vein of getting back in the swing, here are a few unique things related to ropes and swings:

First up is the world’s most expensive swingset, probably the most portable, but you’ve got to pay for the privilege.  I try to keep my hands on rope at least once a day; since this day was so beautiful, I decided to take out the ol’ Arizona Vortex and goof around a bit. Because there is no cliff in my yard (yet), I had to settle for a flat land configuration. I used my AZV, a couple of AZTEK’s, a bosun’s chair, and a 4 year old. Here’s the result:

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Of a more daring nature is the rope swing as pioneered by rock climber Dan Osman. While he ultimately died doing one of these jumps, it is pretty neat to watch the cajones this guy has to be able to do this stuff. He basically sets up a highline and, with a separate rope attached mid span, takes a free fall jump perpendicular to the track line. When the separate rope he is attached to comes tight, he goes for one hell of a long swing. I guess that, with the rope stretch and moveable mid span anchor, this is greater than a FF 2. If anybody agrees or disagrees, I’d love to know.

In stark contrast to Dan, I present the world’s slowest, yet safest, rope swing. Here is a shot of the rope offset that we set up in the last “Modern Technologies” class in Lancaster, PA.  We had a main and belay coming from each side and connected to a Rock Exotica UFO to help keep all of the attachment points ultra clean. A CMC MPD was used on each side to control the main lines and and i’D and Petzl ASAP used for the belay lines.

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A close up of the UFO on Rick Croft’s harness:

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Stand by for more frequent postings again. Thanks to everyone who keeps checking in!

While the Arizona Vortex is usually thought of as an industrial and wilderness rescue piece of equipment, it’s no secret that I think its full potential as a tool for the urban rescuer has not been fully explored. With that in mind, we are constantly trying (occasionally failing) to find out how to best use this tool to our advantage.  We’ve been working on different configurations of the Appalachian Wedge Pole (AWP) lately.

The first and perhaps the most useful version of the Wedge Pole is used to create anchors in a hallway where others might not exist. While no permanent name has been found yet, and because it appears to be bombproof, we’ve been calling it the Atomic Wedge Pole. Or Atomic Wedgie for short. As in: “Hey give him an Atomic Wedgie quickly, so we can get on with this rope rescue. ”  But again, no permanent name yet.

Below are some pictures we took during the discovery phase of these anchors, a scale model so to speak. They were loaded with a couple of guys giving it all they had, leaning into the load line. It was an initial test to see if the anchors would move at all. The next step in the process will be to load these with a one person load and operate a raising and lowering system. Then on to a two person load.

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A slightly more complex version that allows for a longer haul field that runs toward the edge.

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2 to 1 Wedgie

Some techniques might be setups in search of an application, the picture below being one such example. I envision using this above a hole in a hallway, where there are no other anchors present. This might be more of an industrial confined space setup, but it’s neat to see in action.

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These pictures above are of urban usage, but we developed the technique out on the rocks. Here are two pictures of the first AWP setups, one horizontal and one vertical, from when the idea first struck.

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This last picture comes to us from the men of Group 2 on Rescue 1 with the Boston Fire Department. They constructed an Appalachian Lean-To and changed the direction of the haul line 90 degrees at the head resting on the floor. To counteract the resultant force that wants to lift the left leg away from the wall, they front tied the setup to an anchor spanning the doorway with two AZTEKs, one of which is doing the job of keeping that left leg in compression when it naturally wants to pull away from the wall because of the COD on the head. Good job guys!

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I don’t mean drilling as in training ( I’m sure that’ll be another post), but drilling as in: taking out a drill and putting a hole in a wall to make an anchor point. It’s just not something that I’ve heard talked about in the fire service rope rescue community as a viable option for anchoring. I’m not sure why though.

We’re pretty comfortable putting holes in roofs, breaking windows, forcing doors, etc… We might even be comfortable drilling holes for anchors in a building collapse situation in order to lift a slab of concrete. Bet when it comes to rope rescue; No Way! Maybe that will change in the future.

Looking at bolting initially, I was surprised by how relatively simple and quick it is to do. There is no voodoo knowledge or ninja rope skills required. The key points are to drill to the correct depth, far enough away from an edge, and to get the dust out of the hole before inserting the bolt. All of that information is available from the bolt manufacturer. In the video below, I’m using a 1/2″ diameter 3 1/2″ length Hilti KB3 rated at over 6000 pounds of pullout force. The Fixe hanger is rated to over 6000 lbs as well. Those aren’t bad numbers. Drop in a couple of more for your system and you have a pretty bomber system with very little effort. Before,  a blank concrete slab was a thing to for the urban rescuer to fear. Now, it could be looked at as something to seek out!

Keep an eye out when you walk through buildings on routine calls. Look around for the concrete columns and beams to see where you could drill. I did this and was amazed at where I now feel comfortable knowing I can set up a system.

As seen in the video below, it takes roughly two minutes to drill and clean the hole, set the bolt and hanger, and finally torque it to spec. There are some tricks to keep you from cranking on the nut too much if you don’t have a torque wrench, like using a stubby box wrench. You just can’t get the kind of leverage needed to overtighten unless you are REALLY cranking on it.

So get out there and start drilling!

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This post was originally published in Dec of 2012. After switching servers we lost the video and some of the pictures.  We’ve recently found them again and wanted to repost this for the many people who contacted us during the past 4.5 years asking about it. Enjoy.

 

During our most recent “New Technologies” class in Lancaster, PA, we we were posed with the scenario of how to create a high point and system for rescue from grain silos. It was explained to us that the flimsyness of a roof on a silo doesn’t exactly inspire confidence to operate on. Not to mention that there aren’t that many anchors up there.

After thinking on it for a bit, we were able to come up with what basically amounts to a gin pole lashed to the interior ladder and rising up above the top of the silo, much like a flagpole. So we called it the Appalachian Flag Pole (naturally).

After searching around for a while after class, it appears we were not the first people to figure out the AF. The cell tower industry uses this sort of thing to raise sections of their towers. They just call it a gin pole…BORING.  As far I can tell, nobody has tried this as a rescue technique.

Boring Gin Pole:

cell gin

The basic setup of the Appalachian Flag Pole consists of lashing a few sections of an Arizona Vortex to the interior ladder of the silo. With about 3 feet of it sticking up above the top of the structure. Yes, it is unsupported, but there is not a lot of bending force on the top of the AFP. The resultant force is pretty much straight down the leg, with the force being transferred to the ladder.

Version 1 of the of the AFP had the haul system attached to the orange head, which is at the bottom of the AFP and lashed to the ladder, with a change of direction at the top of the AFP and the rope going back down to the victim.

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It worked well, but required a lot of resets.

So, while working with Collin Moon and the guys from Elevated Safety in Chicago, we were able to refine the technique by attaching out MPD to the top of the AFP and do a counter balance raise. We also figured out that we could the blue AZV head for out top anchor point instead of a foot. And when Rock Exotica comes out with the 720 head…watch out!

Check out the video below to see the AFP in action. A couple of things to keep in mind: Where the camera is filming from would actually be the outside of the silo. Collin is the rescuer in this case; the victim outweighs him by a good 50lbs and he was still able to easily accomplish the task. This only happens when the rescuer hauls upwards on the victims line while simultaneously sitting down on the counterbalance line. Lastly, after the victim is out of the hole at the top (the metal grating in this case) they can be pushed to the outside of the silo and lowered with the MPD. If the video below is taking too long to load, CLICK HERE for the video on Youtube. Take a peak:

There are some urban applications that we believe the APF would excel at and will post the results when we complete the testing on it. It is our belief that it can be used successfully in the urban setting, such as the chimney in the picture below, where a man suffered a fatal fall into the chimney while attempting to take pictures. This happened in Chicago on 12/13. Article Here

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If you have any thoughts or comments, feel free to leave them or to contact me at kelly@rescue2training.com.  Enjoy!

This dramatic highline failure in Lima, Peru looks like somebody tried to go bungee jumping while attached to a Stokes basket loaded with a (previously) uninjured victim.

A couple of points to note:

Just before the track line snaps, you can see the carriage kind of “chugging” along down the line, indicating that something is binding up somewhere. One thought is that the control line used to lower the rescue package down the trackline is on the downhill side of the carriage, which would cause the side cheeks of the pulley to dig into the rope until there was enough force to cause the pulley to move down the rope a bit before binding up again. Hence the chugging motion.

The tension on the trackline seems to be way too tight. While it is a sloping highline, there seems to be very little sag, which would indicate that the trackline was too tight and easily susceptible to being cut by something…like, say, a pulley that is loaded sideways.

There is no horizontal control line on the downhill side. When the basket falls, there is a substantial fall distance as well as one hell of a swing fall at the bottom of the ride. When the basket reaches the bottom of its arc, it starts to swing back up again, only to be stopped by  the second floor walkway, which I’m sure did quite a number on the rope.

Had there been a lower horizontal control line, the total fall distance would most likely have been less, and the swing fall most certainly would have been all but eliminated.

Despite all of those things, the system still kept the load from hitting the ground. Not a ringing endorsement, but it does give you an idea of strong our equipment actually is.

I’d seen this video before, but Matt Hunt from Sterling Rope passed along a facebook link to it that caused me to search for a linkable version of it. Thanks for bringing it back to the forefront, Matt.

And just for kicks, here is a dramatic presentation of what happens when there is not enough sag in the system between your anchors. It’s a good showing of the load pulling the anchors towards each other:

anchor failure

While Batman may have nothing to do with these two stories, they are nonetheless a bit holy in that both of the following rope stories take place in churches.

The first story is of 85 year old Rev. Tim Harrison of St George’s Cathedral in Perth, Australia who rappeled 130 feet down the side of the bell tower for Seniors week. From some of the pictures, it looks like he has better form than a lot of 20-somehthings! Good job Reverend.

Heavenly Descent

And if you think bell towers and rope go together like milk and cookies, you might be right. But then again, you might end up like an unlucky bell-ringer from near Bath, England. While ringing the bells at her local church, the unlucky victim made the rookie mistake of not letting go of the rope in time. What followed was the inevitable flying up in the air and the requisite return trip to terra firma at the speed of gravity.

The victim was knocked unconscious and had to be lowered through a hole in the belfry floor rather than carried down the small stairway. Not an obvious place for a rope rescue, but certainly a heads up call by the responders on scene.

Unholy Ascent