Hung up Red Oak

I just cranked a 20" leader off of a shed with a block and a GRCS this AM, and I was proud of myself!

Then I come home and read this! Holy snap, nice job, Tod! Stay safe,

-Tom
 
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You post great questions! Especially since the documentation is poor. The opposing pendulums had the load about 60/40 right to left on the first ground cut that was made at the base. The load then slammed into the ground, reducing the lateral force on the existing tree on the right and increasing the compression force. We made 6, 2' ground cuts untill it was suspended. Graeme McMahon wrote a paper on opposing pendulum. I used that and added the dwt to reduce the force on the slings on the trees and add rope plus pull. If trees or rigging failed the result would have been property damgage. Perhaps injury with cutting under the load. Family is yelling at me!

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It looks like the McMahons have their site back up and running.

http://www.sherbrooketreeservice.com/2009/12/opposing-pendulums/

Todd: did the rhododendrons and fence survive?

Joe
 
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The only impact on the yard was the turf damage from the base hitting the ground 6 times. But we fixed it.

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This I can appreciate. The rigging sometimes is secondary to the outcome of the job. It shows you know what you're doing when things don't get broke. You're a professional and we here expect nothing less from you. I often wonder how much these actions and outcomes are appreciated by the clients. I think you can savor and respect your rigging skills more than most after jobs like this one.

Joe
 
There is a sense of accomplishment after jobs like this one and we enjoy a good challenge. We were set up to win on this job by the sales team. A competent crew and plenty of time and equipment. So the outcome was expected by the client which was reflective by the cost of the job.
 
Hy Tod

very nice job.

How did you make sure that the canopy of the hung-up tree did not get tangled up in the tree that was holding it?

Best regards

Thomas
 
As I reduced the fallen tree to just the contact points it seemed nothing could get hung up. I used a keen eye and a bit of luck.
 
Was the job bid time and material? How many many hours did you wind up with on the project? Any additional equipment on the job outside of the crew and grcs(2)? Mind I ask a ballpark figure on that job?
 
4 men 6 hours on site to get it to the ground. Another day for 3 men to remove the wood and do another 24" removal that was rigged into another tree.
 
It's always nice to read more experienced arborists like yourself use the words "surprised" and "luck"

I find myself dealing with both of those things less and less everyday but yet probably feel it more than most of the more seasoned climbers.

Great work. The pictures don't do the job any justice.
 
After 22 years of climbing and rigging I still have the same feeling every now and then. You will never know it all in this line of work. That may be why I am still doing it.
 
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