What is the most common belay in rescue for a person load?

What is the most common belay in rescue for a person load?

• A. Munter Hitch
• B. Double Figure Eight
• C. Tandem triple wrap Prusik
• D. Alpine Butterfly

Answer: (C)

In a rescue, belaying a person load needs a braking method that bites reliably, is controllable, and remains secure under varying rope conditions. The tandem triple wrap Prusik provides that by using two friction hitches on the same live rope, each wrapped three times. This configuration creates a high, redundant grip: as the load is managed, the Prusiks bite harder with load and the extra wraps boost friction, giving the belayer precise control over lowering or arresting the person. Because it’s based on friction hitches rather than a mechanical device, the system works well across different rope diameters and in wet or dirty conditions, and the tandem setup adds redundancy so a slip in one Prusik doesn’t immediately release the load. The brake hand can modulate tension to lower smoothly or lock off quickly if needed. The other options aren’t used as the standard belay for a live person load in most rescue scenarios because they don’t provide the same combination of reliable friction, redundancy, and controllability. The Munter hitch relies on a device-like action but isn’t as inherently secure for a controlled rescue belay; the double Figure Eight and the Alpine Butterfly serve other purposes in rope systems (general friction/anchor roles or midline isolation) and don’t offer the same dedicated braking performance for a person being supported.

In a rescue, belaying a person load needs a braking method that bites reliably, is controllable, and remains secure under varying rope conditions. The tandem triple wrap Prusik provides that by using two friction hitches on the same live rope, each wrapped three times. This configuration creates a high, redundant grip: as the load is managed, the Prusiks bite harder with load and the extra wraps boost friction, giving the belayer precise control over lowering or arresting the person.

Because it’s based on friction hitches rather than a mechanical device, the system works well across different rope diameters and in wet or dirty conditions, and the tandem setup adds redundancy so a slip in one Prusik doesn’t immediately release the load. The brake hand can modulate tension to lower smoothly or lock off quickly if needed.

The other options aren’t used as the standard belay for a live person load in most rescue scenarios because they don’t provide the same combination of reliable friction, redundancy, and controllability. The Munter hitch relies on a device-like action but isn’t as inherently secure for a controlled rescue belay; the double Figure Eight and the Alpine Butterfly serve other purposes in rope systems (general friction/anchor roles or midline isolation) and don’t offer the same dedicated braking performance for a person being supported.