Belaying the Leader Unanchored
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Analysis of the Accident on Air Guitar
Analysis of the accident on Air Guitar The Safety Committee of the Swedish Climbing Association Draft 2004-05-30 Preface The Swedish Climbing Association (SKF) Safety Committee’s overall purpose is to reduce the number of incidents and accidents in connection to climbing and associated activities, as well as to increase and spread the knowledge of related risks. The fatal accident on the route Air Guitar involved four failed pieces of protection and two experienced climbers. Such unusual circumstances ring a warning bell, calling for an especially careful investigation. The Safety Committee asked the American Alpine Club to perform a preliminary investigation, which was financed by a company formerly owned by one of the climbers. Using the report from the preliminary investigation together with additional material, the Safety Committee has analyzed the accident. The details and results of the analysis are published in this report. There is a large amount of relevant material, and it is impossible to include all of it in this report. The Safety Committee has been forced to select what has been judged to be the most relevant material. Additionally, the remoteness of the accident site, and the difficulty of analyzing the equipment have complicated the analysis. The causes of the accident can never be “proven” with certainty. This report is not the final word on the accident, and the conclusions may need to be changed if new information appears. However, we do believe we have been able to gather sufficient evidence in order to attempt an -
Ice Climbing Anchor Strength: an In-Depth Analysis
Ice Climbing Anchor Strength: An In-Depth Analysis J. Marc Beverly, BS-EMS, M-PAS, Certified Guide Stephen W. Attaway, PhD Abstract: Ice climbing anchors are seemingly simple, yet have a mystique that surrounds their use and overall strengths. Not all ice climbing anchors are used in a standard configuration. Placing an ice screw into an already existing ice screw hole is called re-boring. Re-boring of ice screws is a common practice among ice climbers. Re-boring is typically preferred when placing a screw to avoid creating adjacent holes that could serve as a potential fracture propagation point. We evaluated re-boring strengths for several ice screw designs to determine the strength as a function of length of screw. Slow pull tests were performed, and the results were compared with prior data from drop testing on ice screws. Static pull testing using lake ice was compared with drop testing on waterfall ice and found to be a good substitute test medium. In addition, we evaluated Abalakov anchors (a.k.a. V-thread anchors), with 7mm Perlon cord as well as 1” tubular webbing in different configurations. Their strengths were then compared with that of the single re- bored ice screws. The nature of ice is a continually changing medium and hard to predict in the field. However, the actual strengths shown from our testing methods in the real-world environment make a strong case for the strength of re-boring. Recently, re-bored holes in a freezing environment were found to be strong enough in most configurations. Abalakov ice anchors were also found to be strong, provided that enough ice area was enclosed by the anchor. -
Rock Climbing Fundamentals Has Been Crafted Exclusively For
Disclaimer Rock climbing is an inherently dangerous activity; severe injury or death can occur. The content in this eBook is not a substitute to learning from a professional. Moja Outdoors, Inc. and Pacific Edge Climbing Gym may not be held responsible for any injury or death that might occur upon reading this material. Copyright © 2016 Moja Outdoors, Inc. You are free to share this PDF. Unless credited otherwise, photographs are property of Michael Lim. Other images are from online sources that allow for commercial use with attribution provided. 2 About Words: Sander DiAngelis Images: Michael Lim, @murkytimes This copy of Rock Climbing Fundamentals has been crafted exclusively for: Pacific Edge Climbing Gym Santa Cruz, California 3 Table of Contents 1. A Brief History of Climbing 2. Styles of Climbing 3. An Overview of Climbing Gear 4. Introduction to Common Climbing Holds 5. Basic Technique for New Climbers 6. Belaying Fundamentals 7. Climbing Grades, Explained 8. General Tips and Advice for New Climbers 9. Your Responsibility as a Climber 10.A Simplified Climbing Glossary 11.Useful Bonus Materials More topics at mojagear.com/content 4 Michael Lim 5 A Brief History of Climbing Prior to the evolution of modern rock climbing, the most daring ambitions revolved around peak-bagging in alpine terrain. The concept of climbing a rock face, not necessarily reaching the top of the mountain, was a foreign concept that seemed trivial by comparison. However, by the late 1800s, rock climbing began to evolve into its very own sport. There are 3 areas credited as the birthplace of rock climbing: 1. -
Sport / Lead Climbing
Jimmy John John [email protected] Climbing Trip Log August 2003 West Virginia, Kaymoor Wall Sport Climbing The Rico Suave Arête(5.10a) Flight of the Gumbie(5.9) . Chris Berquist and I drove out to West Virginia to climb at Kaymoor Wall behind Roger’s camp ground. We climbed the first day; however showers rolled in and killed the rest of the weekend. September 2003 West Virginia, Summersville Sport Climbing Jeff’s Bunny Hop(5.8) Sniff the Drill(5.8) That Eight(5.7) Hippie Dreams(5.8) Fabulous Groupies(5.9) Souled Out(5.9) Chunko Goes Bowling(5.9) . My good friend and former colleague at the Virginia Beach Rock Gym, Anna Cummings and I left on Friday after classes and headed out to spend the weekend climbing. On Saturday we started climbing at Narcissus Cave. We climbed on 3 routes all day until I topped out for the last run on That Eight as night fell. We then hiked out in the dark. On Sunday we trekked to the Orange Oswald Wall after warming up on That Eight. July 2004 West Virginia, Kaymoor Wall Sport Climbing Sand in My Crack(5.7) Rico Suave(5.10a) Jumpin' Ring Snakes(5.9) Flight of the Gumbie(5.9 ) . My roommate Sam Shinault, Chris Berquist and I headed out to Roger’s camp ground in West Virginia for some climbing and mountain biking. We got there early on the first day and headed out to a cove in Summersville to do some deep water soloing. The cliffs ranged from 65 feet to 30 feet and the water depths were deeper than I could tell. -
National Tree Climbing Guide
National Tree Climbing Guide Forest 6700 Safety and Occupational Health April 2015 Service 2470 Silviculture 1 National Tree Climbing Guide 2015 Electronic Edition The Forest Service, United States Department of Agriculture (USDA), has developed this information for the guidance of its employees, its contractors, and its cooperating Federal and State agencies, and is not responsible for the interpretation or use of this information by anyone except its own employees. The use of trade, firm, or corporation names in this document is for the information and convenience of the reader, and does not constitute an endorsement by the Department of any product or service to the exclusion of others that may be suitable. ***** USDA is an equal opportunity provider and employer. To file a complaint of discrimination, write: USDA, Office of the Assistant Secretary for Civil Rights, Office of Adjudication, 1400 Independence Ave., SW, Washington, DC 20250-9410 or call (866) 632-9992 (Toll-free Customer Service), (800) 877-8339 (Local or Federal relay), (866) 377-8642 (Relay voice users). Table of Contents Acknowledgments ...........................................................................................4 Chapter 1 Introduction ...................................................................................7 1.1 Training .........................................................................................7 1.2 Obtaining Climbing Equipment ....................................................8 1.3 Terms and Definitions ...................................................................8 -
Mountain Guides Association MOUNTAIN Bulletin Fall 2009 | a Publication of the American Mountain Guides Association | Amga.Com
American Mountain Guides Association MOUNTAIN bulletin Fall 2009 | A Publication of the American Mountain Guides Association | amga.com 2009 AMGA Annual Meeting laughter and holding back tears. The entire crowd rose when Doug asked those willing to stand by Main Event in Memory of Craig Luebben Silvia and Giulia as they deal with their loss to stand in support. “I laughed, I cried, it was better than Cats.” I’ve personally never seen Cats, but Margaret’s reaction to Malcolm from Trango brought with him a set of Big The Main Event – Presented by W.L. Gore – at our 2009 Annual Meeting leads me to believe that we Bros with an image of Giulia, by Jeremy Collins, put on a good show. Being a first-timer, I have nothing to compare it to, but it’s safe to say, I walked etched into them. The first set in existence. His away from the nights festivities rather humbled. The guiding community is tight. Perhaps family is a intention was to auction them to the highest better description. bidder to raise a bit of money for Giulia’s College The tension that permeated the meetings leading up to The Main Event was promptly released at Education Fund. How the auction unfolded was all the door. Greeted by a running slideshow of Craig Luebben, the discussion moved from access, at once inspiring and a bit unexpected. Opening prerequisites and membership dues to stories of Craig’s exploits and whether or not Adam Fox would bid was their retail value of $500. The bidding win the tent in the raffle for a third year in a row. -
Rope System Analysis
Rope System Analysis By Stephen W. Attaway Abstract This paper presents an analysis of the loads in a typical climbing rope system subjected to a dynamic loading from a fall. Several examples are illustrated to show how to calculate the force on ropes and anchors subjected to dynamic loads that are experienced by a falling rock climber. The force in a rope that is generated when a falling weight is arrested depends on how fast the weight is stopped. We will use the energy method to solve for the maximum strain energy in the rope. The effects of friction, dynamic rope modulus, and rope condition will also be considered. We developed some rules of thumb to help a lead climber place fall protection and understand the limitations. The amount of ‘safe’ lead out depended on the amount of rope that is between the belayer and the climber, the type and condition of the belay rope, and the type of anchor used. Motivation friction, rope condition, and belay device will be considered. Finally, we will consider how much “lead out” is safe for a Rock Climbing is a technical sport. A good understand- given rope and anchor system. Several areas for research on ing of the mechanics of anchor placement, rope behavior, dynamic rope behavior are suggested. and impact dynamics is important to climber safety. On June 23, 1996, three climbers fell to their death on the Methods of rock climbing fall protection Warpy Moople route on the formation called Muralla Grande located in the Sandia Mountains east of Albuquerque, NM. -
The Omnipresent Impact Force Formula for a Climbing Rope
The omnipresent impact force formula for a climbing rope Version 1 (April 2016) Ulrich Leuthäusser This work demonstrates the omnipresence of the known impact force formula. Although originally derived only for the straight fall with a linear elastic rope, it applies almost unchanged for many other, more complex fall models and situations. Typical straight fall in a klettergarten situation with a low fall factor [9]. In the following we will derive the well-known impact force formula as simply as possible and show its importance for more complex fall models and situations. It turns out that the same form of the impact force formula can also describe falls with internal and external friction, with slack rope and under an oblique fall angle. It even appears in its original form in modeling rope brakes of belay devices. The present work addresses the interested non-specialist who has some knowledge in physics, such as the conservation of energy, and maybe even has a rudimentary understanding of Newton’s equations of motion. Since nowadays knowledge gaps can be easily filled with help of the Internet, a certain mathematical level of the reader can be presupposed. While the mathematical requirements are relatively low, the possibilities to perform own calculations and estimates with the simple results and formulas are large. www.SigmaDeWe.com © 2016 Ulrich Leuthäusser page 1 In this article many interesting and important practical questions will be answered. What are the forces on the climber at a certain height of fall? Is slack rope of advantage or disadvantage? What effect has the friction between rope and carabiner on the climber, the protection points and the belayer? Are fall factors larger two possible in climbing situations? How can a belay device (rope brake) be modeled? What happens when you fall in a traverse? The impact force formula dates back to Arnold Wexler who in 1950 was the first to apply it to the belaying in climbing [1]. -
Dynamic Shock Load Evaluation of Ice Screws: a Real-World Look
Dynamic Shock Load Evaluation of Ice Screws: A Real-World Look J. Marc Beverly, BS-EMS, M-PAS Stephen W. Attaway, PhD Abstract: Background: It is unknown how many climbers take lead falls on ice screws placed in waterfall ice. Generally, what is reported are accidents that occur when ice screws fail or are pulled from the ice. To date, there is very little information regarding ice screw testing. Methods: Over the period of eight days of drop testing, we conducted a randomized placement of short ice screws in real-world vertical waterfall ice. Different fall factors, including the UIAA standard, were evaluated to determine what a climber might expect from dynamic shock loading of an ice screw in real climbing conditions. Sixty-one drops were performed on ice screws in real world ice. Conclusions: We show that while ice is a variable medium, a predictable and surprisingly strong normogram can be produced in the conditions we performed our testing in. However, because the methods of judging ice conditions are based solely on experience, it may be difficult for novices to discriminate these conditions. The perception that ice screws are weak protection is unfounded when “good” ice is utilized. A definition of terms have been created that may help provide a nomenclature for discerning ice conditions. I. INTRODUCTION: The main objective was to gain an understanding of the behavior of ice screws under dynamic shock loading and peak forces needed to hold a falling ice climber in a real world setting. There is little information regarding real-world testing. Rather, most testing is done in laboratories and the tests performed there only evaluate the tensile strength of the materials and not necessarily the application for which they were intended to be used in the first place. -
Ropes and Anchors – Kitsap 2020
Ropes and Anchors – Kitsap 2020 Logistics When 27 February 2020, 6pm Kitsap Program Center 29 February 2020 (one day), 8am – 3pm Spire Rock Description/Leader Notes Rock Climbing Anchors, Multi-Pitch Belay Technique, Rappel and Rope Team Techniques, and Single- Pitch Top-Roped Cragging. The ropes and anchors lecture and field trip are prerequisite to all subsequent Intermediate field trips. Trip Leader Jerry Logan Gear Prepare as if you are going on a one-day rock climb. Bring rock shoes if you have them. You can bring protection if you have it but not necessary for this FT. Bring quickdraws or alpine draws if you have them, but don’t buy them for this field trip. You will be outside most of the time without too much physical activity, dress for February Spanaway weather. In addition, you will need to purchase a cordelette. Do not buy any other gear for this field trip. Your cordelette will be 17 to 22 feet and made from 5 to 7 mm cord. Tech cord 5 or 5.5 mm is nice. 6 and 7 mm perlon is fine also. A cordelette is a length of cordage, 6 meters (20 feet) or so in length. Typically it’s made of one of these two materials: 7mm perlon or 5.5mm spectra. Spectra is more expensive but lighter, especially when wet. You may refer to this document produced by the Seattle Climbing Committee for further information on material selection prior to purchasing a cordelette. (From 2001, is now a little dated, but still accurate.) Notes on Material Terminology • Nylon: Nylon is a general term for a family of similar materials. -
How to Big Wall Climb Want to Climb the Nose of El Capitan?
How to Big Wall Climb How to Big Wall Want to Climb The Nose of El Capitan? This is the first step-by-step aid climbing guide that takes you from your first step in an aider to the summit of El Capitan. Like anything worthwhile, big wall climbing requires hard work. That said, it’s not that difficult to get to the top of Yosemite’s El Capitan, the top prize of the world’s rock climbers. To scale El Cap you only have to free HOW TO climb 5.9 and know very basic aid climbing How to skills. The daunting challenge is to put those skills together efficiently, a trick most climbers never master. That is where this book comes in. It’s the first How To big wall book specifically BIG WALL organized and clearly designed to address the process of building big wall skills, step by step. Big Wall Climb Author Chris McNamara has climbed El Cap more than 70 times and has set several speed records there. He has climbed more than 100 CLIMB big walls, is a noted wingsuit BASE jumper and is the founder/CEO of SuperTopo, publisher of highly-regarded climbing guides for areas ranging from Alaska to Red Rocks with special attention to Yosemite. If you are a reasonably good climber psyched to do El Cap or a similar bad ass big wall, you probably can do it. Each week read a new chapter in this book and follow instructions. The objective The prize Climb The Nose of El Capitan (or similar bad ass Climbing El Cap and enjoying the process. -
Rock Climbing
Rock Climbing Phil Watts, PhD Northern Michigan University Page ii Library of Congress CataloginginPublication Data Watts, Phillip Baxter, 1951– Rock climbing / Phil Watts. p. cm. — (Outdoor pursuits series) Includes index. ISBN 0873228146 1. Rock climbing. I. Title. II. Series. GV200.2.W38 1996 796.5'223—dc20 9538817 CIP ISBN: 0873228146 Copyright © 1996 by Human Kinetics Publishers, Inc. All rights reserved. Except for use in a review, the reproduction or utilization of this work in any form or by any electronic, mechanical, or other means, now known or hereafter invented, including xerography, photocopying, and recording, and in any information storage and retrieval system, is forbidden without the written permission of the publisher. An important note to readers: This is an instructional book about rock climbing, a sport that is potentially dangerous. Because of the risks involved in rock climbing, the author and publisher strongly recommend that the information provided in this book be used only to supplement qualified personal instruction from a climbing expert or guide. Developmental Editor: Julie Rhoda; Assistant Editors: Susan Moore, Kirby Mittelmeier, Ann Greenseth, John Wentworth, Sandra Merz Bott; Editorial Assistant: Jennifer Hemphill; Copyeditor: Michael Ryder; Proofreader: Jim Burns; Indexer: Barbara E. Cohen; Typesetters: Stuart Cartwright and Ruby Zimmerman; Text Designer: Keith Blomberg; Layout Artist: Stuart Cartwright; Photo Editor: Boyd LaFoon; Photographer (interior): Richard Etchberger, unless otherwise noted; Photographer (cover): Daniel Levison/Vertical Imagery; Cover Designer: Jack Davis; Illustrator: Thomas • Bradley Illustration & Design Human Kinetics books are available at special discounts for bulk purchase. Special editions or book excerpts can also be created to specification.