At what height should a stopper knot be placed in the descent line during training?

Placing the stopper knot in the descent line at the point where the user can touch the ground with their feet is critical for safety and effectiveness during training. This positioning allows the trainee to have control over their descent and ensures that they can safely and confidently reach the ground without experiencing a sudden stop or fall at the end of their line.

By placing the knot where the user can make contact with the ground, it serves as a visual reference and a safety feature that allows for easy disengagement from the climbing or descent mechanism. If the knot is placed too high, it could result in a hazardous situation where the trainee is unable to safely land, potentially leading to falls or injury.

Understanding this principle is essential for safety in descent work, as it allows for a controlled and predictable landing, enhancing the overall training experience and reinforcing proper techniques for working at heights.