highline

All posts tagged highline

There’s a right way and a wrong way to move somebody over water. Being a rope geek, I think it should always be done with rope. There might be some debate about whether it always the right answer, but I would argue that almost anything would be better than what transpired in the pictures below.

A sick passenger on a cruise liner was being transferred to a smaller boat to be taken to shore for medical treatment. She was placed on stretcher and transferred to the smaller boat while both boats were under way ! 

Things are going along just fine (but just look at the snow and ice on top of the smaller boat):

boat transfer 1

Moments later, rescuer Bob “Butterfingers” Johnson knows that he will never, ever get rid of his nickname. This is the victim taking her unintentional swim test in 27 degree water:

boat transfer 2

Read the lurid details of the incident here:

http://www.dailymail.co.uk/news/article-1378935/Sick-cruise-passenger-dropped-sea-Janet-Richardson-falls-botched-rescue.html

For another option of getting people off of a boat, check out the rope operation called a “Breeches Buoy”. It’s the older brother of the high line and was used  for getting sailors to shore off of ships that had wrecked near the shore. It is basically a high line with all controls for lowering and retrieving the victim based on the shore.

The_Life_Line_1884_Winslow_Homer

While it obviously is not for rescue, the concept of wedging the bicycle between two tensioned highlines is an interesting thought. If you have any thoughts on how to apply it to rescue, I’d love to hear them.

http://vimeo.com/76121144

Enrollment is now open for our Modern Technologies in Rope Rescue. The class will be held August 24 and 25 at the Lancaster County Public Service Training Center in Lancaster County, PA at a cost of $295 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. As you can see in the pictures below from our last class, we did a good bit of work with the Rock Exotica UFO. One particularly challenging and fun scenario was to change the direction of our main and belay lines 180 degrees on an anchor that was free floating in the middle of the stair landing. There was also some excellent use of the UFO to simplify the rigging of a Two Rope Offset.

In addition to the Arizona Vortex, Appalachian Doortex, MPD’s, UFO’s, and AZTEK’s, we’ll also have available for use in this class three new products (some not even on the market yet) from Rock Exotica:

The little brother of the UFO; the rockStar.

The Enforcer load cell; which features swivels at both ends, a digital readout, and Bluetooth transmitting capabilities!

The AZORP (Arizona Omni Rigging Pod); an add on used to increase the already amazing flexibility of the Arizona Vortex.

open enrollment August 2013

Here are some pictures from our last MTRR class; we did some heavy duty 3D rigging along with some urban AZV usage:

IMG_1408 IMG_1412 IMG_1420 IMG_1429 IMG_1432 IMG_1434 IMG_1393

This class is different each time we run it and we’ve developed new techniques each class with input and ideas from the students. If you’re interested in seeing and helping develop 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

It was the best of times, it was the worst of times…

Best

Taken at face value, this is just a really ballsy, really beautiful shot of somebody walking a tightrope/slackline over Yosemite Falls. Completely ignoring the fact that I generally have the balance of a member of Delta House (Animal House) on a Friday night, I wouldn’t do that on my most fearless day even if I could walk a razor straight line.

The rigging, however, is what I was most focused on. The line that the guy is walking on is anchored on terra firma on one side and is anchored off to another highline on the other side!!!

The deflection in the anchor highline looks to be practically nil. The forces of a highline pulling on a highline, especially one with very little deflection, are likely to be pretty darn high. I guess that it worked, so I shouldn’t take too much issue with it. But there are several things that I saw that gave me a bit of pause. Aside from the fact that it’s a highline attached to a highline, the floating anchor side is attached with either multiple slings or a doubled up sling. Regardless, it is presenting a hell of a tri load on the single carabiner used for the attachment.

Secondly, it doesn’t seem like the smartest idea to me to be cutting the trackline with a knife; especially with one so small, doesn’t lock, and isn’t tethered off. The release of tension on the anchor highline causes the predictable, violent release. The chances for that blade to cut something you’re hanging on is just too much risk for me… but nothing bad happened here, so maybe I’m just more risk averse. Maybe a happy compromise would have been cutting the line with some scissors or trauma shears. I’m curious why they had to cut the line at all, though. It had to get out to that point somehow prior to it being tensioned.

Regardless, it looked like a great time to be communing with nature while on rope.

Worst

A not so great communing with nature while on rope is summed up in this picture from India.

INDIA-NEPAL-WEATHER-FLOOD

Torrential rains in India this week caused some massive flooding and landslides that have left over 1000 people dead.  HERE is the story.

Nice use of two tracklines in order to keep the sag to a minimum and people out of the water. The slack control lines can be forgiven because, according to the article, these type of highlines were being used to transport multiple people to safety in a short amount of time.  A good trade off/ system analysis/ threat assessment in my opinion.

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.

Roughly translated from the ancient Nordic from which it derives, it means: a polytribal gathering of rescue people. Okay… That might be a bit of creative license. IKAR stands for the International Council for Rescue and is located in Switzerland. You can find their website HERE.

Check out the full length review of what happened at this year’s IKAR meeting in Poland. One of the neat things that stood out to me was the team from Tyrol, which does around 2000 calls annually, was using 8mm Spectra ropes. They’re ultra static and have around a 7000lb breaking strength. As you can see and hear in the video, you can’t put a knot in it and all terminations have to be spliced. Apparently it works for them, though.

Thanks to Spokane FD tillerman, rope geek, family man, and all around nice guy Mike Forbes for alerting us to this video.

While we’re on a highline kick, check out some footage from this year’s IKAR (International Council of Alpine Rescue) in Poland . If you think that you have some pretty good rope mojo, check out the video below of a highline to highline transfer of a packaged victim after they did a counterbalance raise for the vertical control line.Talk about some great line management and setup to be able to accomplish this. Go to the 2:50 mark to get to the rope stuff.

Yeah, baby!

powersteeth

The 5:00 mark of THIS video shows how they got the trackline across. Looks like I found a legitimate excuse to buy a crossbow!

If you ever find yourself in the country of Peru and are offered a ride on highline, it might be in your best interest to politely decline. If the trackline failure that we posted a while ago HERE doesn’t convince you, perhaps the videos below will.

The first video of this event shows the accident and subsequent recovery of the victim. It is interesting to see how the highline started up through a piece of metal that was used as a high directional. A little ways into the video you can see that the HD collapsed at some point, but you don’t see where.

http://www.youtube.com/watch?v=PVTdpbUBjSE

This second video shows a different viewpoint that shows the HD failing right after the rescue package hits the lines; my guess is from the shock (not intended as a pun, but I suppose it is anyhow) loading. Also of note is what appears to be a multi (20!) point anchor that looks like it just goes to a bunch of guys holding each point. Pause the video around the :14 mark to see what I’m talking about.

http://www.youtube.com/watch?v=Ngr8DbOxkO0

Three points to note:

They were lowering the rescue package VERY fast and probably could not have communicated the “Stop” command in time, even if they saw the issue coming.

There was no horizontal control line for the down hill side. It wouldn’t have made a difference here, but there seems to be a lack of highline knowledge in Peru.

The people who set this trackline up apparently had no idea how to calculate the sag in their trackline that was needed to clear objects in their path and maintain a safe number on their (obviously) sketchy anchors and high directionals.

Does your team have the ability to calculate sag before setting up your trackline or is it a calibrated eyeball and more trackline tension that you rely on?

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.

http://www.youtube.com/watch?v=unF2shRE2KY

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

It’s obvious that anchors are the key to any successful rope rescue operation, but sometimes they just aren’t where we need them or they aren’t as strong as we’d like.  Take a look at the three anchor failure videos below for proof. While there are some slackliners who have an idea of the forces they are putting on their anchors, a lot have no clue. Evidence:

Maritime anchor failure:

If, however, you are interested in a strong portable anchor for your rope or vehicle extrication team, then take a look at the pictures below. James Hurley of Heavy Rescue Solutions has developed an aluminum anchor plate that can be picketed into the ground with three picket. Wrap the handle with webbing and pull away. The plate is roughly 3 feet long and weighs around 25 lbs without the pickets. The pickets can be driven by hand or with an air impact chisel which HRS has developed a special bit for. If driving by and with a sledge, they have developed a fitting to make it less likely to mushroom the head of the picket.

This anchor plate has been pull tested end to end and withstood 44, 000 lbf of force. The ability of the plate to hold a load is clearly dependent on the soil in which the pickets are driven, but early testing R2T did with James was conducted in a moist, loamy soil and the anchor held to around 8000 lbf after it settled in a bit. The newest version of this plate has been revised and James said it can hold quite a bit more than the prototype and with less settling in movement as well. He’s hoping to have everything finalized and ready for production at the beginning of November. If you are interested in the plate or want more information, give James a shout at:

heavyrescuesolutions@gmail.com