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Search Results for: two tension two rope system

Determining Mechanical Advantage using the T-Method with an added Pulley on the Load

By / Pulley Systems, Pulleys & Mechanical Advantage

Calculating mechanical advantage: the T-system The subtle but significant difference to this system… a pulley on the load and the main line terminated at head of the tripod. We have a 6:1 mechanical advantage in the pulley system. 1. Assume continuous strands of rope have the same amount of tension. If we start at the …

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Arizona Vortex SA (Sideways A) Frame with Compression Member

By / 5th Class Litter Raise, Anchoring, Arizona Vortex, Artificial High Directional AHD, Portable Anchors / 9 Comments

The Arizona Vortex Workshop was hosted by Rescue Response Gear and The Rigging Lab. CMC Rescue taught the 3 day workshop and was well attended. The Side A or SA Frame is probably the safest manner in which to set up an artificial high directional using the Arizona Vortex. Very accommodating to properly setting the …

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Twin Highline Unit 3 : Working Platform for Ascent and Descent

By / Anchoring, General Rigging, Pulley Systems, Team Competencies / 5 Comments

  The third part in the series on the rigging of a Twin Highline. This unit goes through the pieces and theory behind the “Platform” from which a rescuer or worker can move across the area beneath them, as well as lower down to it and ascend back up to the line centered around the …

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Twin Highline Track Line Unit 5 : Twin Highline and Track Line Using a Manned Belay Part 1

By / Anchoring, General Rigging, Safe Practices / 5 Comments

  This segment goes through the first part of the process of using the Twin Highline Track Line with a belayer belaying the rescuer or worker as they move down the line. The working platform is a systems of ascent device, descent device and fall protection devices. A clean set up indeed. The working platform …

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Twin Highline Unit 6 : Twin Highline and Track Line Using a Manned Belay Part 2

By / Anchoring, General Rigging, Pulley Systems, Team Competencies / 3 Comments

  The second part of using a Twin Highline with a designated belayer to lower the worker or rescuer down to the working area. This segment goes through the first part of the process of using the Twin Highline Track Line with a belayer belaying the rescuer or worker as they move down the line. …

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Twin Highline Unit 7 : Twin Highline and Track Line Using a Self Belay Part 1

By / Anchoring, General Rigging, Portable Anchors, Pulley Systems, Team Competencies / 13 Comments

  Unit 7 goes through the Twin Highline process, but instead of having a designated belayer this version shows the worker using a self belay technique. This segment goes through the first part of the process of using the Twin Highline Track Line with a self belay as part of the progression in ascending or …

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