Let’s drop some acid… on our harnesses and see what happens to them.
This is what equipment manufacturer Black Diamond said to themselves after a customer returned a harness that just kind of blew apart at the seams. The short version of the results is that hydrochloric acid is REALLY bad for nylon. To see how Black Diamond came to that conclusion, check out the writeup that they did:
[vimeo http://www.vimeo.com/68054494 w=400&h=300]
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:
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.
https://www.youtube.com/watch?v=si2j6IaKQGU
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.
A close up of the UFO on Rick Croft’s harness:
Stand by for more frequent postings again. Thanks to everyone who keeps checking in!
Pretty awesome video just posted on youtube from a Pat Rhodes class in Australia recently. While testing the “what ifs” of a trackline failure, video was taken of a prusik capturing the load on the horizontal control line. You can see smoke coming off of the prusik/rope interface after the trackline is failed. Because I wasn’t there and am only guessing: I wonder if instead of smoke, it is actually steam from the moisture in the rope being cooked off ? Either way, it is very cool to see. Thanks to Richard Delany and the Rope Test Lab for making this type of video available on their facebook page. There is a ton of excellent information and discussion going on there. Check them out!
While not quite as cool as the Appalachian Flagpole (or a smoking prusik for that matter), this video from the manufacturer Kong shows something like an App Flag and Gin Pole hybrid. I like the technique of being able to hook your haul system to your gin pole. It’s not really mind blowing, but just another cool incremental advance in the world of rope rescue.
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.
A slightly more complex version that allows for a longer haul field that runs toward the edge.
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.
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.
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!
The lady in this video ought to try out for some Mixed Martial Arts events. She’s nearly successful in taking on three rescuers while she is on the ledge of her apartment building, apparently deciding whether or not to commit suicide. As for the rescuers: You can see the importance of wearing a chinstrap tightly, one rescuer’s helmet was ripped off by the victim. Also note the rescuer that is able to assess the victim for possible injuries by palpating the kidney area for any pain upon palpation…with his fist.
Seriously though, this would be a difficult task for anybody. That victim was not gonna get in any type of harness and was the definition of combative. Good job by the rescue team to send over more than one rescuer at once. I don’t know that I would have thought to do that, but it clearly helped.
I can’t find a way to embed the video, but it is definitely worth clicking on the link. Thanks to Collin Moon of Elevated Safety for pointing this one out to us.
The link was broken before. Fixed now.
http://flashovertv.firerescue1.com/media/3838-Firefighters-make-rope-rescue-of-combative-woman/
Is this a picture of the world’s most hardcore truckman or of the world’s dumbest Rope Access guy?
You make the call!
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!
[wpvideo BCF9Ybo8]
Enrollment is now open for our Modern Technologies in Rope Rescue. The class will be held March 30 and 31 at the Lancaster County Public Service Training Center in Lancaster County, PA at a cost of $280 per student.
This class covers multiple versions of the bowline along with some pretty god reasons to consider them, several uses of the AZTEK kit, a thorough introduction to the Two Tension Rope System concept with the MPD, and the use of the Arizona Vortex Artificial High Directional in some pretty typical urban setup configurations as well as some Rescue 2 Training exclusive uses of it in a few of the Appalachian Doortex configurations.
Below are some pictures from the last MTRR class in Lancaster. It was during this class that the Appalachian Flagpole was developed. The AF is designed to create a high point for grain silo rescue while not having to rely on the lightweight roof for support. A couple of the pictures show its first inception. The picture of the AF with the an MPD attached to the A frame head (next to the conex boxes) is where it is currently at. It is another high directional/anchor combo.
If you’re interested in seeing what’s on the cutting edge of rope rescue equipment and techniques, contact Kelly to reserve a spot in this popular class. Call 240-462-6610 or send an email to rescue-2@comcast.net
Another one off the front page of Statter911 is this video that redefines the Kickoff Pickoff. While the previous coverage HERE actually showed people getting kicked backwards into the structure, the video below is of the fire department’s lead off kicker on the kickball team trying his hand, foot actually, at technical rescue. Perhaps the speediest method ever of getting the victim safely to ground.
http://www.youtube.com/watch?v=VhSlSHQvfVk&feature=player_embedded
Well, if too fast is bad ,then slower should be better right? I’m not so sure in this case. The rescuer looks to be rappeling on a figure 8 descender with some sort of autoblock, so he can go hands free if he needs to. Not a bad thought. The trouble comes from clearly not being comfortable using the autoblock. It causes him to start and stop suddenly a couple of times. Worst of all is that he overshoots the target because of it. If you’re taking yourself down a rope, it ain’t a bad idea to have a way to get yourself back up.
Do you equip your team with the equipment and knowledge to quickly switch to ascent should they need it while on rappel?
It wasn’t a huge issue here, but it could have a lot worse.
http://www.youtube.com/watch?v=A11QlQ3V6hw
Near Olympia, WA a man was rescued after falling approximately 30′ down a well into waist high standing water. Good heads up by the rescue team when they threw him a PFD to help keep him from drowning into water of an undetermined depth. Note also, the presence of well known volunteer Batt. Chief Andy Speier of the technical rescue team.
A local press release:
Shortly after 10:30 this morning, members of the Thurston County Special Operations Rescue Team (SORT) assisted Mason County Fire District #4 in the rescue of a man that had fallen into an abandoned well at a residence located in the 300 block of SE Arcadia Road near Shelton. According to Andy Speier, Battalion Chief with the McLane Black Lake Fire Department, the man was in the process of demolishing a shed and was standing on what he believed was a four foot deep sump when the earth gave way, plunging him 35 feet down the well into deep water. First responders from Mason County Fire District #4 and the Sheriff’s office were able to successfully lower a floatation device and protective clothing to the man who was treading water to stay afloat.
According to Speier, “With the rescue team in place, Lt. Mark Schreck of the Olympia Fire Department was lowered into the well to prepare the victim to be hoisted back to the surface”. “Once secured in a harness, the man was then hauled up and out of the well”. While the patient was wet and cold, he appeared to be uninjured from the fall.
Technical rescue trained firefighters from Mclane Black Lake, Olympia, East Olympia, Lacey and Tumwater Fire Departments assisted in the rescue.
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Thanks once again to Mike Forbes for the heads up on this.