Dynamic Directional Offset System Using an A-Frame and Natural High Directional

Written By: Lance Piatt

Dynamic Directional Offset System Using an A-Frame and Natural High Directional

Over time, we’ve found this style of deflection offset to be really fun. They have their limits, as with any system, but strength (when properly rigged and run) comes easy and we appreciate the versatility it offers. Large gaps or spans are typically the MO for dynamic directionals. We used a standard A-Frame configuration on the Working Line side, while the deflection or Dynamic system was of natural origin, but nonetheless, high help.

The system is tensioned and “relaxed” based on the needs of the moment. Communication is critical as running water, wind, and a host of other challenges can play havoc with the team. The primary working line controls the vertical direction, where the dynamic or deflection system controls “out and back or in and out” motions; somewhat similar to reeving systems. The one critical point with the deflection system (as with all offsets) is that they are not nor meant to be operated as a highline. Keeping the angles as deep as possible is always the rule. It’s highly recommended to have a dedicated belay line associated with the deflection line.

we’ve embraced the dynamic directional offset system, particularly when integrating A-Frames with natural high directionals. This method, while presenting its own set of limitations, shines in its strength and adaptability, making it an intriguing approach for bridging large expanses.


The heart of our setup lies in the dual nature of our configuration: a standard A-Frame on the Working Line side provides steadfast support, while the deflection, or dynamic system, leverages natural high directional elements to extend its reach. This blend not only enhances the system’s versatility but also its ability to adjust to the fluctuating demands of the environment.

Tension within the system is meticulously managed, allowing for both tightening and loosening as situations dictate. Effective communication becomes paramount, especially when contending with environmental factors like running water or gusty winds that can disrupt team coordination.

The operational essence of this setup is distinguished by the dual functionality of its lines: the primary Working Line dictates vertical movement, whereas the dynamic or deflection system manages lateral motions. This arrangement bears a resemblance to reeving systems in its operation. A pivotal consideration for the deflection system—and indeed all offset configurations—is their distinct separation from highline operations, emphasizing the importance of maintaining deep angles for optimal performance. The implementation of a dedicated belay line for the deflection system is strongly advocated to enhance safety and control.

Critical Components of the Dynamic Directional Offset System:

  • Working Line: The backbone of vertical control, providing stability and direction.
  • Deflection Line: Facilitates lateral movement, essential for navigating obstacles and complex terrains.
  • Artificial High Directional (AHD) Systems: Key to extending operational reach and versatility, especially in natural settings.
  • Anchors: The foundational elements that ensure the integrity and safety of the entire system.
  • Tensioning Systems: Allow for precise adjustments to system tension, accommodating the dynamic needs of the operation.

This video delves into the intricacies of utilizing dynamic directional offsets with a focus on A-Frames and natural high directionals, offering insights into setup, operation, and the critical balance of tension and communication. Through this exploration, we aim to showcase the nuanced advantages of this approach, reinforcing the importance of adaptability, precision, and teamwork in technical rescue operations.

Peace on your Days



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