Thanks
Dan, the rigging is mine and I am a contract climber/worker. Most of the companies I work with either don’t have the gear or don’t look after it.
why two blocks on one piece of wood on edges of the log instead of one in the middle? if production is the key, would you still use two?
is your tenex sling a fixed length or an adjustable whoopie sling? I dislike trying to adjust one nice and tight to the spar. two would drive me nuts. but maybe I am missing something
do you always double wrap your line on each rig?
John, the load sharing of the two blocks, slings and lines means that I can take heavier wood, with twice the security and half the wear on the equipment. This becomes far more relevant as you near the ground and the stopping distance for the log increasingly becomes less…..I have scorched, melted and so reduced the lifespan of many a rigging line in the past when faced with such a scenario. Having said that, its still extra work so you have to make the logs count, otherwise it’s probably not worth it.
http://www.youtube.com/watch?v=aiqK8z_4GyM
The blocks are set at the edge so they don’t bang together when the log falls.
Those slings are 1-inch double braid:
http://www.honeybros.com/gbu0-prodshow/HB91QA.html matched with a ¾ line. Perhaps ¾ slings + 5/8 lines would have been more suitable and certainly easier to tie.
I usually use a half hitch finished with a TimberH or Running Bowline on heavy stuff. This of course means the logs will fall a little further with the extra stretch, but provides better security and takes the sting out of the load by the time it reaches the termination knot.