Here's a link worth bookmarking: http://drivelink.blogspot.com/ This blog is written by Dave Vickers, a chainsaw tutor at Sparsholt College in the UK. and its primarily aimed at inexperienced chainsaw users and arb students. But there is plenty useful information for anyone working with a chainsaw.
If ..
True? Well, almost. As a general rule the 50% figure can be applied but the real answer as to how much rope strength is lost is "it depends".
Have a look at this study conducted by Dave Richards, Technical Director with the Cordage Institute in the US. His team tested three ..
A group of Auckland tree climbers have planned an informal Masters Challenge this Sunday (early afternoon) in Cornwall Park as part of the preparationfor the Auckland Region TCC. Access via the Greenlane Road entrance and walk left - you'll see the big gum across the fence in the farm paddock.
Yesterdays comparison between the Wild Country Ropeman and Kong Duck solicited the following comment from well known Auckland tree climber Matt Glen.
Matt was referring to a picture of the Duck being used on a home-made rope saver in the Netherlands. Treetools ..
Treetools featured the Kong Duck late in December 2009 describing the device as an emergency belay device. Technically speaking the Kong Duck is a 'rope clamp' certified to EN 567:97 and UIAA 126 standards when used on textile ..
Arborists have been astounded at the number of developments in tree climbing and rigging gear over the last few years - 2010 promises to be just as exciting.
Petzl have dominated in the helmet market for a number of years but 2010 is likely to see some stiff competition. Edlerid have ..
Happy New Year from Treetools! Look after yourself over the next few days - we open again on Tuesday 5 January for the start of a new and exciting year.
..Merry Christmas from the team at Treetools - have a good one!
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A retrievable re-direct (that worked) is one of the great debates in tree climbing. The image below is taken from the Treeworld Forum (circa 2008) andshows the use of a DMM Revolver in a clever re-direct set-up. Note the use of the Kong Minis.
To be truly functional ..
Following the Treetools blog about friction hitch cords earlier in the month many climbers have asked about ratings and break strengths relative to the various hitch cords available and the prusik knot options associated with friction hitch based climbing systems eg Hitch Climber.
Very little research has been undertaken in this ..
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