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Rescue prepared a comparative analysis titled
Daisy Chains and Other Lanyards, which led to the
conclusion that “when using a lanyard as the only
means of attachment to an anchor; keep
unnecessary slack out of the lanyard, thereby
41
keeping the potential fall factor low.”

Because of their very low elongations, HMPE
(Dyneema® or Spectra®) runners should only be

employed in applications where slack will not be
permitted, which could lead to the potential for a
greater shock force to be generated. When HMPE
runners are being employed, it is recommended that
only factory sewn units be utilized, due to the
relatively slippery characteristics the material
making it difficult to not hold knots well (Figure 25).

Figure 25- Bluewater Dyneema®
HMPE sewn Runners

CARABINERS

Metal connectors with spring loaded gates,
which are used to attach components in
rigging. The name is derived from
"Karabinerhaken", which is German for

"spring hook.” Rescue applications require
carabiners to be stronger than the more
lightweight designs used in recreational
climbing. They are constructed of
aluminum, alloy steel and stainless steel.
Steel carabiners are stronger, more
durable against wear, but also much Figure 26- Carabiner nomenclature. Original image
heavier than aluminum carabiners. The © Petzl.
specific parts of a carabiner include the
body, spine, gate, nose, hinge and sleeve. The major axis of a carabiner refers to an
orientation end-to-end along the spine, while the minor axis refers to an alignment
across the carabiner side-to-side (Figure 26).

41 Gibbs, Mike. Daisy Chains and Other Lanyards. p.6

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