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letigre · 5th April 2008, 11:35 PM

thanks for the helpful tips guys! heres some answers to some of your questions.

Just thought of something. Your pulley that your life line will be going through, will you be sliding accross the line while it's taut or will you be using the spanline as a V?

yeah cheers for the import john, i would use a v so i could use the dip to position myself. i def hear what your saying, having a tautline could be a pain.

P.S What part of Sydney you working in?[/quote]

all over really, work for a company called sydney arbor trees based in botany and run by a guy named craig young. the tree in question is in hunters hill.

That would really depend on how high his high points are, and they don't sound like much... From my experience, from a high point, you only have upto about a 45 degree angle from it until it stops full supporting you and your weight is actually on the branch. If he has to go past that 45 degree angle it's gunna be mighty hard to adjust his friction hitches.

yeah the high points are on the verge of being useful in some sort of application as newguy suggests. i know what you mean john, you high point starts working against you, dragging you into the ground. will suss it out again tomorrow morning, trees have a tendency to become much larger and difficult that they actually are after leaving the inspection.

DO NOT USE A PRUSSIK! A tensioned line line that will experience 5x your weight (when just hanging there doing nothing) at the terminal ends. If you are suspended from that line DRT then at times you could be doubling your weight.

thanks for you imput ekka, alway come through with the goods! hear what your saying and will definately look into some other system. cheers for the explaination and the diagrams too.

think your gonna need lots of rope!

hell yeah ptc. already got two lengths of 200ft and a 150fter!

Any clues to the location of this tree? A 37m red gum would be quite a sight!

its on private property in hunters hill. i could be wrong on the height but its at least 30m tall. the branch ive got to remove is at least 4 metres above a two story gabled house thats piered (pole house). ill throw my rope down when im at the top and snap a pic for you!

Used a tandem pulley attached a second line so that it could be controlled by a groundworker adjusting how far along you or the pulley can move. It can also be installed from the ground with a long enough rope tied at both ends to the ground or another tree. This can also be tensioned with a block and tackle so that there is less dynamic movement in the rope above. The other option maybe twin lowering lines and twin lowering devices from either tree to lower in a V with a dogline to swing branch clear. probably an easier setup.

cheers treelore, thats pretty much the conclusion ive come to. will take photos and see what you think.

5th April 2008, 11:35 PM	#11 (permalink)
letigre Semi-mature vigorous tree Join Date: Aug 2007 Location: Australia Posts: 53	Re: remote suspension/spanline removal thanks for the helpful tips guys! heres some answers to some of your questions. Just thought of something. Your pulley that your life line will be going through, will you be sliding accross the line while it's taut or will you be using the spanline as a V? yeah cheers for the import john, i would use a v so i could use the dip to position myself. i def hear what your saying, having a tautline could be a pain. P.S What part of Sydney you working in?[/quote] all over really, work for a company called sydney arbor trees based in botany and run by a guy named craig young. the tree in question is in hunters hill. That would really depend on how high his high points are, and they don't sound like much... From my experience, from a high point, you only have upto about a 45 degree angle from it until it stops full supporting you and your weight is actually on the branch. If he has to go past that 45 degree angle it's gunna be mighty hard to adjust his friction hitches. yeah the high points are on the verge of being useful in some sort of application as newguy suggests. i know what you mean john, you high point starts working against you, dragging you into the ground. will suss it out again tomorrow morning, trees have a tendency to become much larger and difficult that they actually are after leaving the inspection. DO NOT USE A PRUSSIK! A tensioned line line that will experience 5x your weight (when just hanging there doing nothing) at the terminal ends. If you are suspended from that line DRT then at times you could be doubling your weight. thanks for you imput ekka, alway come through with the goods! hear what your saying and will definately look into some other system. cheers for the explaination and the diagrams too. think your gonna need lots of rope! hell yeah ptc. already got two lengths of 200ft and a 150fter! Any clues to the location of this tree? A 37m red gum would be quite a sight! its on private property in hunters hill. i could be wrong on the height but its at least 30m tall. the branch ive got to remove is at least 4 metres above a two story gabled house thats piered (pole house). ill throw my rope down when im at the top and snap a pic for you! Used a tandem pulley attached a second line so that it could be controlled by a groundworker adjusting how far along you or the pulley can move. It can also be installed from the ground with a long enough rope tied at both ends to the ground or another tree. This can also be tensioned with a block and tackle so that there is less dynamic movement in the rope above. The other option maybe twin lowering lines and twin lowering devices from either tree to lower in a V with a dogline to swing branch clear. probably an easier setup. cheers treelore, thats pretty much the conclusion ive come to. will take photos and see what you think.