When deciding on a rope lowering system, which factor must be considered first?

In a rope lowering system, the first and foremost factor to consider is whether to use a single or double rope. This decision fundamentally affects the system's overall safety, efficiency, and the mechanical advantages that can be achieved.

Choosing between a single or double rope influences the amount of friction encountered during the lowering process, the load distribution, and the ease with which the rescuer can manage the descent. A double rope system can often provide additional safety through redundancy and can handle heavier loads more effectively due to the way forces are distributed across both ropes. This can significantly impact the selection of subsequent equipment and techniques used during the rescue operation.

While other factors such as the weight of the load, the type of patient, and the length of the rope are all critical in the planning of the rescue, they become relevant only after determining the basic rope configuration to be utilized. Once the type of system is established, the other considerations can be properly addressed within that context, ensuring a safe and effective lowering operation.