Ziplining logs

Treeclimber, Eli, who I was coaching through the procedures on that big fir, had the sling temporarily attached to his belt to keep it out of the way while he made the face cut. The log was then butt hitched, lowered onto the GRCS, stopped after it ran a bit, then cranked back up, then the sling was attached to the log, then back onto the tensioned speedline (which had an appx 8-1 mechanical advantage applied to it.)
 
Roger, I used an adjacent tree that time so I wouldnt damage a rather expensive porta wrap. I'd rather damage a $40 pulley or carabiner, than a $125 porta wrap.
 
gotcha, brendon. Though it would be hard to hurt a PW--reckon the ears could be bent. But, I'd prolly not use a pulley for an application where shock loading is bound to occur....I was thinking you used a block, and they start at $80...and could be damaged.

Typically, though, a vert speedline would be used on a slope, and the log would usually bounce away from the rigging...
 
Your right, usually downhill. In this situation the tree was buried with fill on one side, and had a severe drop on the other. We were setup on the highside so the logs were speedlined god forbid they slipped off the hillside.
 
This is a limitation of the INternet.

It looks like there are only a couple of the pics in this thread that are stored on Treebuzz storage. Most have links to their host sites. Those links are obsolete in the 15 years of their lives.

Don't hold your breath
 
chris_girard said:
Thanks Tom, that's exactly what I was looking for.

I remember this thread from years ago and was impressed with Eli's rigging.
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Eli and Scott did OK. I had to walk them through a lot of stuff.

Also, that behemoth was ~54" dbh. At about 35' up, I said fck this, drove 2 miles home, got some plywood for the fence and maybe a few tires, and chunked the rest of the tree down. Drop zone target was maybe 5x5', iirc.
 
Roger_Barnett said:
LOLLzzzzzzzzzzzzzzzzzz at you!!
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Serf Life said:
He’s got some uncomfortable positioning there, like he’s scared of what happens next(?).
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Sure. A couple points. Eli had only climbed for a couple years at that time. And, as we were speed lining the wood, we had to stop the sections--in order to lessen the amount we needed to crank them back up, onto the speed line.

Were you referring to Scott being sans helmet? He doesn't like 'em. He did wear one, during Jerry's Tree House Project...prolly out of respect to Jer and the rest of the 20 arborists that were on that amazing job....
 
Serf Life said:
Not the helmet, that he’s getting a ride on the zip line. Looked like a fun job and pretty great you dredged up the photos.
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I have over 20 tb of stored data, most photos and vids. They're all organized by date shot. And all my data is backed up at last twice. That's three total copies. I think my images were shot with my first digital SLR... vids were with a little digicam. Quality was very low back then. I'm about to upload a vid, which is quite raw, just some clips... a couple should have been trimmed. At the end will be a clip of Eli, zipping out with NO control line. Hurt his leg a bit, bent a a gaff shank, and cracked some plastic on my ported Dolmar 7900S.
Badly messed up his hands from trying to slow his descent..
Shared it with Dwayne of Arbor Canada as a tool to show what NOT to do!!!!!!!!!
 
Text that I included with the video:

This is a bunch of low-quality clips, some poorly filmed or not trimmed, but the tree was a huge 130', 52" plus dbh Douglas-fir, that had virtually no drop zone. We speed-lined the brush and most of the wood, over two structures. We had to start limbing in the lower middle of the tree, as the lower limbs needed a space above them to allow for them to be lifted, in order to gain the height needed to be speed lined. I'd charge 20,000 today for this task. I called it the $105,000 tree, as the job was $5k, but there was appx $100k in legal fees incurred, as the homeowners wanted to save the tree, but finally caved in, after the incessant pressure from a neighbor who hates trees. Tree was near my home, in Shoreline, Wa. The community has a view ordinance, but that tree and a few others were protected as they were grandfathered in.
 
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