Speed Line

You're welcome, kind sir.

Yeah, when I saw the first one was going to take a while I almost didn't finish fetching it. Then I skipped to the end and that one was sideways to boot! At that point I nearly posted just the three words "I GIVE UP!" :)

It would be interesting to see the video. It would be just as much or more interesting to hear why this job had to be done that way. Couldn't the material have been dragged down the first hill, across the pond, and up the second hill much more easily? What were the factors which necessitated the speed-line system, cool as it is/was?

[edit] Okay, I hadn't fetched the currentest version of the thread before replying. I'm a little confused about the folks using the path. They weren't using it at the same time that you were rigging loads over it, were they? (I honestly hope that's a rhetorical question!)[/edit]
 
no to the people in the path.... the path that was closest to the tree was shut down, but there were several different paths that we would have needed to use. Also, we thought about just dropping the trees into the lake.... this was not a good idea for a couple of reasons.... There are fiber optic cables on the bottom of the lake (5-8 feet deep), and our customers did not want us to hurt any fish /forum/images/graemlins/bangtard.gif ....... they do have some BIG carp in there


Rob
 
I'm sure the customers were aware of the options, and hey, if they were willing to pay for the time and equipment needed for the job, I'd congratulate your salesman. I would love to participate on a job like that. Good job guys.
 
Sorry it's my fault about the pics. I barely have enough time to post them more or less resize them and stuff. Thanks glens for doing that for everybody. You should charge for that service. Send me the bill /forum/images/graemlins/grin.gif
When I went out to look at the job with the sales arborist the client did not want anything dumped in the lake so we had two options drag the brush several hundred feet without staining or scracthing the sidewalk or speedline it across the lake. I think it work out great with time left on the job. Rob had a great crew out there, everyone knew the plan and worked the plan and it came out all good in the end.
 
<font class="small">Code:</font><hr /><pre>--21:41:17-- http://www.morfilms.com/movies/TreeCuttin.wmv
=&gt; `TreeCuttin.wmv'
Resolving desk... 192.168.0.7
Connecting to desk|192.168.0.7|:3128... connected.
Proxy request sent, awaiting response...
HTTP/1.0 200 OK
Date: Sun, 19 Mar 2006 02:31:52 GMT
Server: Apache/2.0.46 (Red Hat)
Last-Modified: Fri, 17 Mar 2006 01:21:00 GMT
ETag: "4741f9-4ff8fb6-9f24b700"
Accept-Ranges: bytes
Content-Length: 83857334
Content-Type: text/plain
X-Cache: MISS from desk.localnet
Proxy-Connection: close
Length: 83,857,334 (80M) [text/plain]
200 OK</pre><hr />

80 MB (and the server clock is off by 9 minutes 25 seconds, and the "Content-Type" declaration is wrong; should be "video/x-ms-wmv" or "video/x-msvideo" -- see here).

It's always advisable to make a test download to make sure there are no problems before posting a link.
 
That sure makes tree work look like a lot of fun. I would have loved to have been there.

Here is a part of the transcript to the video I found very interesting. This is not an exact quote but pretty close.

"On the second day our other change up is over here on the other side of the lake it worked out great until <font color="red">we started tensioning it and realized the ground beneath the pine was heaving up because it was bending the pine over too much </font>so we ran it about another hundred feet up the slope and tied that line to another tree so not the tension on the pine is straight down instead of pulling it over……..<font color="red">trying to keep the tree and me….from coming over into the lake.</font>"

Wonder how close that pine was to coming down climber and all?

If you ignore all of the gear and only look at the winch attached to the top of tree where the climber is located it would look like an attempt was being made to pull the tree over. Dropping loads into this line looks like a further attempt to pull this tree over. Heaving roots heave make it look like this tree was almost pulled over.

What is the margin of error between a safe profitable job.....and the death of an arborist?

I very much admire all of the gear and technical know how that has been shown in the video.

I abhor the fact that most likely none of the forces involved were known or calculated.

The winch wasn't working well enough because it could not hold the load after tension was applied. Second day winch is replaced by a Bobcat and the tree was guyed with a half inch rope. How much force did the Bobcat apply? If the half inch guy rope had failed would the whole tree would have come over climber and all?

Please excuse my rant. I do love this stuff.

Dan
 
the first day, i did not have the SL mearly tied to the top of the pine... i did calculate that the force might just pull me and the tree into the water. the SL was run through a block and to a tree behind the pine (the problem was that the tree was too close to the pine and both the root system of the pine and the tree that the SL was tied to was heaving, i think the fact that they were both on a hill and close to the water was a factor that i did not take into account)

All that being said, a good groundman can (and does more than we care to admit) be the difference between failure and having a good day.

Rob

p.s. i did try the link before posting, it worked fine for me.
 
also... when i arrived the seconed day, we set the bobcat up and i tentioned the line to what i thought would be enough tention.... i then marked the spot that the operator could not go past.... we were also in contact by radio the entire job

Rob
 
Rob,

Running the speed line through a block at the top of the pine increased the bending forces that the speed line put on the tree. It would have been better to have the speed line tied to the top of the pine....and to have the guy line tied to the top of the pine too.

I bet the saturated soil that close to the water does change up things a bit.

Good job and good video!

Dan
 
Dan,

I thought about that, but i thought that when i had to move the SL down (like 30 times), that i would be better off using a simpler method... with the method that i used, it was no problem moving the system down.... it (SL, and control line) was on a double block, so i just had to move 1 sling.... also when we moved the SL back About 100', i could not even tell that the SL was tentioned..... No movement...

Rob

p.s. One thing that you may not be able to tell on the video is that i did not drop anything into a taught SL, we slowed all of the "coller roped" pieces with the control line and then tentioned the SL..... you never want to shock load a static line.... bad for everybody!
 
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