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Function: Shock absorbing sling designed to reduce peak loads in any climbing system!! - Multi-functional energy absorbing device. Screamers™ will provide added protection in climbing and rescue situations. Screamers not only absorb energy directly, because of the stitch ripping effect, they also allow your rope to absorb more energy from the fall by increasing the time interval of the fall. Screamers can reduce shock loading in any rescue system. The standard "Screamer" can effectively reduce peak loads by 3-4 kN an any climbing or rescue system. YATES original Screamers were first developed over ten years ago, Yates has since developed numerous variations on the "Screamer" design with use in Aerospace, Military and explosive testing to decelerate various objects.
- Screamers were originally designed to be used on less then ideal climbing protection such as small nuts, old 1/4" bolts, snow anchors or marginal protection. We have determined that the most effective activation for a standard screamer to be >2kn(550lbf.) for climbing related situations.
- The new "SHORTY" Screamer offers the exact same properties as the standard Screamer in a more compact package unit. The new "ZIPPER" Screamer is designed for long falls with high fall factors. These type of falls occur usually within the first two or three protection placements that are run out. Ice climbing is a good example where the "ZIPPER" is exceptionally effective when used on the first few placements. The "ZIPPER" can effectively reduce peak loads by 6-8kN in any climbing system. Screamers and Zippers have proven to be very successful in reduceing loads to any anchor when it is stressed in exess of the activation force of the Screamer device.
- When the Screamer activates, the action of the stitching ripping produces a load tearing sound, indicating the system has reached the activation point of the Screamer (>2 kN). The activation point of a Screamer is consistently repeatable to +- 5% accuracy. (Screamers are very useful in documenting maximum loads in a given situation, such is their use in Rescue.) Screamers can be combined in series and ganged up double or triple to increase the activation force or the total absorption.
Standard Screamer, Shorty, Ice-Screams:
Activation: >2 kN.
Reduction in system peak loading: 3-4 kN.
Runner Strength: 26 kN. Zipper Screamer:
Activation: >2 kN.
Reduction in system peak loading: 4-8 kN.
Runner Strength: 26 kN. Scream Aids:
Activation: >1.5 kN.
Reduction in system peak loading: 1.5-2 kN.
Runner Strength: 7 kN. "use on extremely marginal aid placements only"
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