Wednesday, October18, 2017 L-36.com

Rope Reference Articles



Below are listed a variety of technical articles on ropes and knots. They cover both climbing and yachting but are of interest to both sports. Some are achedemic journal articles and several are presentations of test results. That said, several of the academic articles look like student papers and some are dreadful in some of their methods although the worst have been removed.

I have added a short review of each article below.

  1. Knot Strength: The Study of Knot Performance This article talks about the strength of various common knots but then goes into the details of what characteristics make a knot strong. I ran into some of these issues when developing the double soft shackle and the things I did to make that shackle stronger are similar to the points raised in this article.
  2. Douglas Young: An Assessment Of The Strength Of Seizings And Whippings Used To Create Eye Terminations On Sailing Rope.Student paper that tests eyes made by seizings. The conclusion is that they have similar strength to knots. Not a great paper but I left it in because it addresses a subject I have not seen delt with other places.
  3. Design And Performance Of Ropes For Climbing And Sailing. Journal Of Materials: Design And Applications, This paper, written by a University Professor is semi interesting to sailors starting on page 8.
  4. An Assessment Of The Strength Of Knots And Splices Used As Eye Terminations In A Sailing Environment, Sports Engineering (2006) This excellent article covers the testing of various knots and splices. The most interesting thing to me is the strength of the splices and the validation of the used rope splice.
  5. Matthew Smith: An Assessment Of The Effects Of Environmental Conditions On The Performance Of Dynamic Climbing Ropes Wet rope isn't as strong as dry rope.
  6. Industrial rope access- Investigation into items of personal protective equipment A nice discussion on knots and their strength starts on page 11.
  7. European Death Knot Testing Testing of the overhand knot used to tie two ropes together was done. There are also good links in the reference section.

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.