Small scale rope high lead logging system

[curved-wood]

Allo again Quebecnewf. Actually we did exactly that cable system when I was a teenager. We were a bunch of 15-16 years kids with no machinery and wanted to built a log cabin on free crown land to invite our girlfriend  ...may be to play doctor  . A lot of motivations around. So we install a series of 4-5 cables between trees may be 15-20 feet from ground. One pulley per length because the cables were fixed with permanent clips. No winch, no motor, no slope. We attach one log at the time in the middle so the weight was balance. We easily slide by hand the log to the next tree, unhooked and hooked to the other length till we arrived at the camp site. If I remember well (that is 50 years ago and there are some more interesting part that I remember... ) the log was fairly close to the ground in the middle of the cable even if we tighten the cables with a come-along. The steel cable were good quality and came for Hydro-Quebec ''guy '' that hold electricity post, so it was not the stretching of the cable but more the pole trees that were bending specially if we have an angle between the lines. 
If you have a down slope I would think about the speed the log could gain. May be the winch could slow down the speed.
My son install a canopy sling for his son at his house. A lot of info on the net  concerning the slope and how to calculate the deflection if you want the kid to arrive at the platform. Kid has a breaking system.

[mike_belben]

I know that yours is snatch blocks and gravity with no haulback.  I was talking about my own setup. 

[Quebecnewf]

Been looking at those zip line travelers. They would be the real thing for this type of plan. Two pulleys to spread the load . Made to put on a line and take off. I bet if you knew of someone operating a zip line park they have hundreds lying around. I am sure that as they are used to hang people on they are changed quite often. 

If you knew the right place most likely you could get a bunch for a good price.

I'm committed to trying this this winter rather than discussing it and not giving it a try. I will buy a coil of " crab fishing rope " for now and try it with that. If it dose t work out I can always give the rope to my cousin for crab fishing .

Quebecnewf

[John Mc]

You may have this sort of info already, but this page was helpful when I was setting up a zipline for people to ride over our pond:
https://www.ziplinegear.com/pages/how-to-build-a-zip-line

Some of it may not apply in your situation (this uses a calculated slope and sag to assure you stop before the end, since running a person into the ground to stop them is not really an option).

[Quebecnewf]

Some interesting reading for sure. I guess " when " I start shooting slings of logs down the hill I will have to go back and reread some of the "sag " details after my first shot smashes out the down hill tree and takes out the winch man as it passes by . 

Might need slow motion video to capture where I made my mistake .

Going to be a fun project I think . Time well wasted . I always say

Quebecnewf.

This site has all the answers . If you can't find someone on here who has not already tried it . You should most likely not try it yourself ....

[chet]

This site has all the answers . If you can't find someone on here who has not already tried it . You should most likely not try it yourself ....

Quebecnewf

  :D :D  

[Old Greenhorn]

Now I feel a little silly. I was taking some trees back in May and it was on a steep slope, could hardly stand. No way to get in to skid them down either. I toyed with this idea. I even checked out and piled up my cables and found some blocks to use. Then I gave up on the idea thinking it silly. I cut the logs into 6 footers and rolled them down by hand so I could reach them with the winch cable. It was no easy task. Next time I will think otherwise. Good on you guys!