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Knots reduce rope strength by half

Richard Tregoweth, Friday, January 08, 2010

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 ..

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Masters Challenge planned for this Sunday

Richard Tregoweth, Friday, January 08, 2010

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. 

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'NO GO!' to Duck on rope guide

Richard Tregoweth, Thursday, January 07, 2010

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 ..

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Ropeman-Kong Duck Comparison

Richard Tregoweth, Wednesday, January 06, 2010

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 ..

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New products for 2010

Richard Tregoweth, Tuesday, January 05, 2010

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 ..

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Welcome in 2010

Richard Tregoweth, Friday, January 01, 2010

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.

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Merry Christmas from Treetools

Richard Tregoweth, Friday, December 25, 2009

Merry Christmas from the team at Treetools - have a good one!

 

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DMM Revolver in retrievable re-direct

Richard Tregoweth, Thursday, December 24, 2009

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 ..

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Rope and Friction Hitch Test Report

Richard Tregoweth, Wednesday, December 23, 2009

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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March 2010 will be a busy month for tree climbers

Richard Tregoweth, Tuesday, December 22, 2009

13 March, 2010 South Island Regional Tree Climbing Competition, 20 March, 2010 Auckland Regional Tree Climbing Competition, 21 March, 2010 Asia-Pacific Tree Climbing Championships (to be held in Auckland at a venue to be confirmed).

The South Island tree climbing event has been moved forward tocoincide with the month-long Festival ..

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