Lanyards and Cowstails
Below is a series of links to all the publically available research on personal lanyards and cowstails we have found to date (we exclude papers with analyses and other citations because there are so many!). We have made an attempt to find as much as we could, but it is a work in progress. If you know of any additional testing we are missing, please bring it to our attention (contact us)!
Published Papers:
Unpublished Research:
Videos of Lanyard Testing:
Videos of Daisy Chain Failure Mechanisms:
Also of Interest:
Published Papers:
- Antonini, Giuseppe, Piazza, Oskar, 2012, Test sui materiali: Le longes, il Soccorso Alpino, April 2012:16-23 (Document in Italian)
- Baszczynski, Krzysztof, 2007, Dynamic Strength Tests for Low Elongation Lanyards, International Journal of Occupational Safety and Ergonomics 13(1):39-48
- Borie, Sylvain, Cazes, Gerard, Clement, Nicolas, Mulot, Jose, 2007, Les longes en speleology et descente de canyon, Spelunca 107:1-4
- Borie, Sylvain, 2008, Series of Tests on Cow's Tails used for progression on semi-static ropes, Nylon Highway 53:39 pages (Also posted here in English, Originally published in French, and is posted here)
- Bressan, di Giuliano, Polato, Massimo, Unknown Date, Longe e Daisy Chain: impieghi, Numeri di Alpinismo Unknown Volume:210-215
- Federation Francaise de Speleologie, 2013, Les longes en speleology et descente de canyon, Pourquoi ces tests? Groupe d'Etudes Techniques
- Gibbs, Mike 2005, Daisy Chains and Other Lanyards: Some Shocking Results when Shock Loaded, Proceedings of the International Technical Rescue Symposium 2005 (Reprinted in: Gibbs, Mike, 2008, Daisy Chains and Other Lanyards: Some Shocking Results when Shock Loaded, Nylon Highway 53:40 pages)
- Gibbs, Mike, 2006, Lanyards Part II: An Examination of Purcell Prusiks as Personal Restraint Lanyards, Proceedings of the International Technical Rescue Symposium 2006 (Reprinted in: Gibbs, Mike, 2008, Lanyards Part II: An Examination of Purcell Prusiks as Personal Restraint Lanyards, Nylon Highway 53:18 pages)
- Holden, Tim, May, Bill, Farnham, Rich, 2009, On the Utility of Rescue Randy Mannequins in Rescue Systems Drop Testing, Proceedings of the International Technical Rescue Symposium 2009 (Republished in: Holden, Tim, May, Bill, Farnham, Rich, 2009, On the Utility of Rescue Randy Mannequins in Rescue Systems Drop Testing, Nylon Highway 54:17 pages)
- Luscinski, Keith, 2015, Knotted vs. Sewn Terminations in Cow's Tails, Proceedings of the International Technical Rescue Symposium 2015
- Martin, Daniel, A., Boron, Kevin, Osbstalecki, Kurath, Peter, Horn, Gavin P., 2015, Feasibility of Knots to Reduce the Maximum Dynamic Arresting Load in Rope Systems, Journal of Dynamic Behavior of Materials 1:214-224
- Mehew, Bob, Sykes, Les, Weare, Damian, 2012, Are Your Cow's Tails Safe? Nylon Highway 57:5 pages (Originally published in Speleology, Issue 12, p. 6-8, April 2008)
Unpublished Research:
- Francesco, Salvatori, Marco, Menichetti, Sergio, Celesti, Luca, Poderini, Domenico, Bocchio, 2011, Resistenza E Assorbimento Di Energia Delle Longe E Trilonge In Corda In Funzione Della Velocita Di Deformazione (Document in Italian)
- Frye, Drew, 2013, Dynamic Teathers
- Giovanni Duca, 2014, Relazione attivita di Bressan, Melchiorri al IX Congresso CNSASA 16/17 Nov.2013
- Hundal, Geir, Unknown Date, The Climbing Mythbusters (dropped on a daisy chain to measure forces)
- Lyon Equipment Limited, 2001, Industrial rope access - Investigation into items of personal protective equipment, Contract Research Report 364/2001
- Petzl, Unknown Date, Tests of Absorbica Lanyards in a Fall Over an Edge
- Petzl, Unknown Date, Slinging an Anchor With Absorbica I and Y Lanyards
- Polato, Massimo, 2014, Le LONGE, "considerazioni consolidate" nello studio di questi elementi (Document in Italian)
- Powick, Kolin, 2010, Daisy Chain Dangers
- Powick, Kolin, 2015, Climb Safe: Daisy Chain Dangers
- Powick, Kolin, 2011, Via Ferrata
- Unknown Author, 2010, Long, Biolonge e Trilonge: E'Il Lavoro Che Le Distingue! (Amazing testing on lanyards, web page is in Italian)
- Zoppello, Cristiano, 2013, Le longe in arrampicata, speleologia e torrentismo
- Zoppello, Cristiano, 2014, Le longe in arrampicata, speleologia e torrentismo
Videos of Lanyard Testing:
- Beal, 2010, DYNA PRO 8 lanyard
- Beal, 2010, DYNA PRO V lanyard
- Beal, 2012, BEAL LANYARDS in dynamic rope
- CAI CSMT, 2016, Alcuni esempi di prove sui set da ferrata...
- CAI CSMT, 2014, dvd csmt
- CAI Scuola Franco Alletto, 2015, CAI - Centro Studi Materiali e Tecniche (CSMT)
- CAI Scuola Franco Alletto, 2015, CSMT - Le "Longe"
- CBHSNEWS, 2014, CBHS LONGE DYNAMIQUE BEAL DYNAPRO *. www.cbhs.fr (video of drop tests and slow pull tests of a lanyard)
- Centro Studi Materiali e Tecniche, 2013, Video Presentazione studio Longe
- Centro Studi Materiali e Tecniche, 2016, Longe study
- Cергей Веденин, 2014,Срыв на самостраховку из дайнимы.
- Cергей Веденин, 2014, Срыв на завязанную самостраховку
- Cергей Веденин, 2014, Падение на сшитую динамическую самостраховку
- DMM Climbing, 2011, How to Break Nylon and Dyneema Slings (tested dyneema slings with and without knots)
- ENSA Chamonix, 2016, Study Lanyards for climbing and mountaineering
- Giovanni Duca, 2014, Relazione attivita di Bressan, Melchiorri al IX Congresso CNSASA 16/17 Nov.2013
- Guenter Karnutsch, 2011, KLETTERSTEIGBREMSEN TEST
- Guglielmo Di Camillo, 2011, Tecnica e Materiali a Padova 2011 - Trazione lenta (Video 1 - Parte 1) (Video shows pull tests of a variety of pieces of equipment and knots)
- Guglielmo Di Camillo, 2011, Tecnica e Materiali a Padova 2011 - Trazione veloce (Video 2o) (Video shows pull tests of variety of pieces of equipment and knots)
- Jahn Rib, 2013, Padova Laboratorio materiali CAI- Test PAS Metolius usata
- monkeybaboon's channel, 2008, drop test (Petzl ID, dynamic rope cows tails, prusik on cord)
- Richard Delaney, 2014, Rescue Randy factor 2 fall on daisy chain
- Richard Tregoweth, 2012, Agathis Lanyard Drop Test
- sambarsport, 2009, tlumic_padu_absorbica_sambar.mpg (Petzl absorbica)
- Unknown Author, Unknown Date, BD Used Spectra Daisy.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 22.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 25.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 30.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 33.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 34.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 53.wmv
- Unknown Author, Unknown Date, ITRS 2005 Drop 6.wmv
- Unknown Author, Unknown Date, Metolius Monster Daisies.wmv
- Unknown Author, Unknown Date, Metolius PAS-Monster Webbing.wmv
- Unknown Author, Unknown Date, Nylon Daisy-80kg FF 1,5-2002-Drop 43.wmv
- Unknown Author, Unknown Date, Nylon Daisy-80kg FF1-2002-drop 38.wmv
Videos of Daisy Chain Failure Mechanisms:
- Backcountrydotcom, 2011, Daisy Chain Safety
- caicsmt, 2012, Come usare la daisy chain
- CAI Scuola Franco Alletto, 2015, Uso corretto della daisy chain
- Grivel Mont Blanc, 2011, Grivel Daisy Chain
- lacassitos, 2007, Daisy Chain
- Ivanov, Mike, 2013, CAMOCTPAZOBKN Daisy Chain ONACHBI
- Redakce Horyinfo, 2010, Daisychain danger 1
- Redakce Horyinfo, 2010, Daisychain danger 3
- Singing Rock, 2009, Safe daisy chain alias SAFETYCHAIN
- Singing Rock, 2010, Safety chain vs. Daisy Chain
Also of Interest:
- Giovanni Duca, 2014, Convegno CAI CSMT e SAGF - Predazzo 2014. Video Giovanni Duca (Video in Italian)
- Giovanni Duca, 2014, Relazione attivita di Bressan, Melchiorri al IX Congresso CNSASA 16/17 Nov. 2013 (Video in Italian)
- Giovanni Duca, 2014, Relazione Attivita: G.Bressan_C.Melchiorri_A.Panza IX Congresso CNSASA 16/17 Nov. 2013 (Video in Italian)