It’s important to know your gear and the way it handles different situations and scenarios. More often then “knot” a knot will weaken the overall strength of a rope in a system. This video is an observation of three knots(two knots one hitch) and the way they function in terms of strength and their …
Tech Pick of the Week | Episode10 : Knot Strength and Efficiency Read More »
How much strength does my rope loose when I tie it in a knot? There are a lot of publications available that contain information about knots and knot strength. For that reason we will not include much information here. Knots reduce the overall strength of a rope. Therefore, whenever possible use a tensionless hitch around …
How much strength does my rope loose when I tie it in a knot? Read More »
The fourth installment of the Twin Highline series. This unit describes the tensionless anchor at the top of the Twin Highline, which is placed at or near where the rescuer or worker will descend down from. A Tensionless hitch is an anchor knot used for repealing or rope rescue. Unlike most knots, the tensionless …
Twin Highline Unit 4 : Twin Highline Tensionless Anchor Read More »
The Termination Side This video depicts the termination of a quad-bundle trackline. Once again we are using prusik bypasses on each leg to eliminate the knot from the system. If these bypasses were to receive excessive tension, slipping would start to occur, thus easing the transfer of the load onto the termination knot. Highline operations …
PART 5: Termination Side | QUAD BUNDLE | Horizontal Rigging Read More »
The Gin Pole The floating gin pole (mono-pod) is a useful alternative for a high directional especially when trying to consolidate equipment. With proper guying in place, the gin pole works quite well as a high directional for the quad-bundle. Highline operations are dangerous. They are the most difficult of all vertical rescues. Under no …
PART 4: Gin Pole | QUAD BUNDLE | Horizontal Rigging Read More »
Carriage System The carriage system for a quad bundle highline is very similar to the single trackline. The composite rigidity of 4 ropes is twice as much as that of 2…we can now keep our deflection at 2.5% of the overall length of span. This is a good system for heavy loads and/or extremely shallow …
PART 3: Carriage System | QUAD BUNDLE | Horizontal Rigging Read More »
The “A” Frame The floating A Frame used in this video for the quad system is very similar to that of the single and the twin trackline, other than there are now four ropes encompassed in the trackline that we must manage. This segment addresses some of the specific aspects of a high directional anchor …
PART 2: “A-Frame” | QUAD BUNDLE | Horizontal Rigging Read More »
Tensioning Side Tensioning a quad-bundle trackline is particularly rigging intensive and requires practice and patience. As with all trackline tensioning systems of highline construction, we must be diligent of not over tensioning. In addition, with all multi-bundles, equal tension is imperative. During this short video you will see how to rig a 3:1 on each …
PART 1: Tensioning Side | QUAD BUNDLE | Horizontal Rigging Read More »
Resultants is another core rigging physics concept that is at time confusing and misunderstood. During this sequence we will clear up some of this confusion. The way we address knots, MAs (Mechanical Advantages), and Anchors in these videos are more general and with a focus of the finer points that are many times overlooked. Our …
Friction is a valuable factor in rigging; we are either using it to our advantage to lower something, or we are trying to overcome it when hauling. We use some applied physics to shed some light on this topic. The way we address knots, MAs (Mechanical Advantages), and Anchors in these videos are more general …
Managing Friction | Anchor Considerations in Rope Rigging Systems Vol. 2 Segment 1 Read More »
