Force Vectors and Horizontal Systems

Written By: Lance Piatt

Force Vectors and Horizontal Systems in Rope Rigging

Understanding the dynamics of force vectors is crucial for designing safe and effective rope rigging systems. When working with multiple anchor points, technicians must carefully manage the angles formed between these points. Larger angles result in greater stress on the anchors, potentially compromising the system’s integrity. Minimizing these angles while maintaining the system’s functionality is a primary goal, especially when working in high-angle rescue scenarios.

The stress experienced by a horizontal system is directly related to the load’s distance from the original fall line. As the vector forces increase, so does the complexity of the rigging required. This often necessitates advanced setups and highly skilled personnel to ensure operational safety and efficiency. For a deeper dive into this topic, check out An Introduction to Twin Highline Systems in the Work Access Environment.

Horizontal Systems: Navigating Complex Rescue Scenarios

Horizontal systems are essential for influencing or changing the fall line of mainline and belay rope packages. These systems are invaluable for overcoming obstacles, reorienting rescue loads, and managing horizontal movement in rescue scenarios. Horizontal systems fall into three major categories:

Taglines: Simple systems used for minor adjustments and stabilizing rescue loads.
Dynamic Directionals: Flexible systems that allow for smooth transitions and adjustments during operations.
Highlines: Complex systems that span wide gaps and require advanced rigging techniques.

Each of these systems can be further divided into minor and major setups. Minor systems do not require belaying from the horizontal influence point, while major systems do. Choosing the right system depends on the operational needs, environmental conditions, and the specific challenges of the rescue.

A Practical Application: Tension Track Line for Work Access

As shared by Trask Bradbury of Gemini Rope Access Solutions, a practical example of horizontal systems involves recreating a real-world scenario encountered during inspection work. In this setup, a tension track line was devised to allow a Rope Access technician to navigate across a structurally compromised tank while performing non-destructive testing.

Key Elements of the Setup:

Track Lines: Tensioned using a tandem tensioning kit to create a stable platform.
Working Platform: Two independent ropes (mainline and safety line) supported the technician’s vertical movement.
Bullae Rope: A secondary line for controlled travel along the main ropes.

This setup enabled the technician to safely access a workspace that could not be walked on or physically tampered with. The system’s design highlights the versatility of rope access techniques in challenging environments.

For more insights into advanced rigging techniques and real-world applications, explore Rigging Lab Academy’s extensive resources.

Conclusion

Force vectors and horizontal systems are fundamental concepts in rope rigging and rescue operations. By understanding how to manage angles, stress, and system configurations, technicians can ensure safe and efficient setups tailored to their specific needs. Whether dealing with minor adjustments or major gaps, mastering these principles is key to success in the field.

Peace on your Days

Lance

About The Author:

Lance Piatt

Beginning his career in the rescue and rigging world as a “blue collar” SAR member with Deschutes and Jefferson County teams. Lance Piatt owns and operates Red Ibex Solutions, a sales and marketing wheelhouse blending rope rigging education and exquisite imagery with equipment knowledge and understanding; housing Rigging Lab Academy and Rescue Response Gear… Lance is producing high-end video education, working with several experts and instructors to produce unique series of “how to videos” and courses for rope rigging: Such as; the first ever full-length rescue training DVD, 'Tower Rescue', released in fall of 2005. As well as a series of scenario-based rescues ranging from cave rescue to cliff rescue.