letigre

hey guys! ive got a hellish climb on monday, just wondering if anyone has some advice and or literature on remote suspension/spanline setups?

ok, so heres the story; angophora costata (syd red gum) 37m tall multi-leadered beast, dead wood and crown inspect (no probs) and a hellish 15m branch walk out into space with a high point that doglegs out away from the branch. so moral of the story is i have no rigging point (except off itself and there isnt quite the clearance) and no real high point: i can get half way out the branch (just by looking at it) and it is possible to us a secondary line through the end of the branch to "skywalk" out (however seriously labour intensive and time consuming not to mention seriously uncomfy).

so, my idea is; set up a remote suspension point/spanline (flying fox if you will) between the specimen and an adjacent tree. sending the rope through pulley and sling set ups and going back to the ground, tightening with a friction drum on one end and tied off with a prussick set up on the other. my climbing system would run off a micropulley on that rope, hence suspending me directly above the branch (and the house).

would be a good time to apologise for not having any fotos!! will get some up on monday night!

so here a problem arises; its a 30m gap from tree to tree and i have no idea of the physics involved and wether its safe or not! i figure speedlines are set up that long all the time and i dont weigh nearly as much as a decent speedline load so there shouldnt be an issue.

what do you guys think?