Rigging question/advice?

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i might try a 3/1 lift, additionally support SL line off of what is left of tree if it is close enough, the tree just past the deck if close enough could have a line and carabiner that could be tightened when load was lifted as high as possible and SL tightened too; then as load came near that point (after off deck?) slacken that line allowing passing where there is more clearnace.

That is lifting all the way up and really working line. But, i might try to kinda lift load with rig and tighten SL, to just support load well enough to spirit across deck (Line lift and 2 men guiding/balancing/hardly any weight, then 'throw' off the downside; if that seemed like less work; without overhead risks, and loading risks etc. Support both end SL supports with a line going from high in support to low on the opposite side/same axis of SL pull and tighten.

Use 3/1 around trunk to anchor the low side, then gain back more than leverage lost in 3/1 due to trunk friction and unparallel lines; by impacting and sweating in the tightening-then squeezing spread lines that lace around trunk together, as to bend them sharply and really leverage them, choking with turns/hitches. Stand so that each 1/2 hitch or round turn etc. is as a 2/1 or 4/1 choke multiplier (sometimes like a short frenchy stack for10/1 choke) X the leveraging of the bent lines, impacting with bodyweight. The larger trunk you come around, taxes the 3/1 potential more with friction, and the unfocused angle of pull. But that same larger diameter can give you more spread lines to induce more leverage after the fact! Turning an efficiency loss against itself to give great anchoring while still keeping specialized tools freed up.

Orrrrrr something like that!
Sounds like a tough won!
:alien:
 
Rob Meiser uses a helicopter out of North Carolia. I hear he gets about 2 grand for each mile of powerline clearance work done with it. Steep mountainous I guess.

Excellent post by all. Im learning more than yall know. Thanks for your time on this most difficult and most advanced type of tree rigging.
Levatating trees its what we do.
Nice Cyprus pic to. WOW!
 
Yea, Spyder do you ever talk in plain english :D. Your pics always help. I understand most of that, but some of it is foreign, in text at least.

Carl
 
Originally posted by xtremetrees
Rob Meiser uses a helicopter out of North Carolia. I hear he gets about 2 grand for each mile of powerline clearance work done with it. Steep mountainous I guess.



The helicopters used in James Bond's "The World is not Enough" are based on an the real line clearancing helicopters.


Carl
 
Originally posted by dbeck
anyone used a helicopter? Or heard of anyone ever using one?

I know someone who enquired around here.

10,000 to start
3000 per hour

and they need 2 emergancey drop zones between the pic and the DZ.
 
Pricey.
Sherrill had a pic he submitted couple years ago.

He was standing on a log spiked in and safety on. Flying off a looked to be about 20 foot log about 30 inchesaround. @ 500 FT. UP !
Awsome pic wish i had it to post
 
Originally posted by xtremetrees
Pricey.
Sherrill had a pic he submitted couple years ago.

He was standing on a log spiked in and safety on. Flying off a looked to be about 20 foot log about 30 inchesaround. @ 500 FT. UP !
Awsome pic wish i had it to post

I wish you did, too!:(
 
Yes I had the SL originally set up in the Bay but as we got lower down we set it up in the Redwood the next day to handle the lower trunk wood.
The Redwood did not care what we where tying to it- pretty massive.
The location is next to the lower Russian River which is covered with tall trees, winding one lane roads with all the wires clustered over the narrow streets. A hair pin curve just before the job site. No way to get a crane any where near that site.
The Prussik was tied to a 9/16" lowering line.
At 4800. and bid for 3 days did'nt have the money for a crane anyways.
Thanks for all the input, really.
Often talkiing about these jobs and swalllowing your pride really does result in some learning (at least for me)
Thanks
Frans
 
That is one problem, the 5/8" prussik is bigger than the hoist line. You should use a 1/2" cord instead, you will like its bight much more.


Got any pictures?


Carl
 
East Coast tool of choice for removing large spreading crowns over houses.... 35-70 ton crane... I Am sure a lot of guys out here use speed lines too.... but very few have the need and abilities to set up a similar rig to yours....
I just took down 4-5, 10-15" DBH hardwoods and a 12"spruce, and pruned a maple.... 8-10 man hours... $1,350.... That's my idea of a good time anymore.... not handling 6' wheels....
 
Franz,

Sounds like that was a great job... Awesome rigging, great tools..Only problem you had...solutions have been given by Tom (klemheist or Vt)
and Carl...smaller prussic size. For the next job you have, get a spectra/Technora prussic, preferably one with a polyester cover, so it won't be so slippery. Plenty of choices are out there, which are around 15-20000 lb tensile in the 1/2 inch size. And get a prussic minding pulley, then maybe you wont need to mess with the pvc pipe idea.

One question, how were you attaching the large low sections to the lifting line? Hard to tie them, I've noticed. Some people have sunk a lag bolt on the top....

I just rigged a similar setup to winch brush piles up a hillside...and am not done, so will get some pics. We tensioned the main line with the fiddle blocks, and used the Simpson capstan winch to pull a line attached to a traveling block on the mainline. Worked great, as we had enuf height to keep the brush airborne.
 
Rather than lagging to disks of wood/wider than longs i have cut notches in and double grabbed; or kerfed in to and used the front of my hand saw to push/thread a 1" CMI etc sling/flat rope through the kerf as a strategy.
 
A common device in west coast logging is a motorized carriage that is simply a radio controlled winch that rides on the Skyline (speedline). The advantage that this gives you is that you can pull straight up to a standing skyline instead of always having to guess the drift of a block or carraige on a running skyline. Also, this system lets you reach laterally so that your sky/speedline doesn't have to be directly over your work.

Just a hair brained idea here but if you didn't need much lift to clear the rounds and get the deflection you need, why couldn't you rig a rider block on a standing (or running if you need more lift) skyline, hook a haulback line to the block instead of through it and use a regular old chain hoist hooked between the block/carraige and the load. Seems like you could use a low tech. (cheap $) system like this to get the job done.

LMAO about the willow tree tail hold.... to quote a famous comedy duo of the seventies "What balls he has!" :D
 
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