Which rope is used for most lobster claws and static belays?

Which rope is used for most lobster claws and static belays?

• A. Kernmantle Rope
• B. Hawserlaid Rope
• C. Dynamic Rope
• D. Headwall Harness

Answer: (B)

For a static belay or a secure anchor system like lobster claws, you want a rope that hardly stretches under load. Hawser-laid rope is built by twisting fibers into strands and then laying those strands together, resulting in a strong, low-stretch line with good wear resistance. That predictable, minimal elongation under tension makes it well suited for static belays and rigging tasks where sudden or excessive extension could compromise the setup. Kernmantle describes the rope’s construction—a core and a sheath—and includes both dynamic (stretchy) and static (low-stretch) varieties, but the key factor for static belays is the rope’s elongation, not the general term. Dynamic rope, designed to stretch to absorb a fall, would introduce unwanted movement in a static belay. Headwall Harness isn’t a rope at all, so it doesn’t function as a belay line.

For a static belay or a secure anchor system like lobster claws, you want a rope that hardly stretches under load. Hawser-laid rope is built by twisting fibers into strands and then laying those strands together, resulting in a strong, low-stretch line with good wear resistance. That predictable, minimal elongation under tension makes it well suited for static belays and rigging tasks where sudden or excessive extension could compromise the setup.

Kernmantle describes the rope’s construction—a core and a sheath—and includes both dynamic (stretchy) and static (low-stretch) varieties, but the key factor for static belays is the rope’s elongation, not the general term. Dynamic rope, designed to stretch to absorb a fall, would introduce unwanted movement in a static belay. Headwall Harness isn’t a rope at all, so it doesn’t function as a belay line.