Pine - speedline

[Reg]

Andrew and Will (groundworkers) had never used a speedline before, so nothing too adventurous on this occasion. Andrew controls both lines from the base of the tree while Will unties each branch at the landing. Neither Andrew nor Will could see each other, so clear communication was imperative. A leaning Corsican pine, not a lot to it!

http://www.youtube.com/watch?v=iJEuhIwvgBA

 

[Rocks_and_Trees]

Dang Reg, no gloves? Never worked in the snow before, but looks cold. Is that the same blaze rope used in most your vids? Nice job, and rigging.

 

[cory]

At around 5:00 it looks like your main line/slide line is anchored considerably below where you are making the cut, instead of anchoring it close to the cut, can you discuss that?

Nice job. Snowy trees sure are slippery.

 

[brendonv]

I was intrigued by the way you set of the speedline. Instead of tying off to the tree to be removed, you tied it to the anchor tree, up through a pulley, then down to the porta wrap. I like that a lot, one man can do both lowering. Sometimes on jobs I only have 1 experienced rope man, so having another play with the other rope impedes me from setting up speedlines.

 

[Kevin]

Maybe I'm not reading that right but there seems to be two ropes and two pulleys.

 

[Reg]

[ QUOTE ]
Is that the same blaze rope used in most your vids?

[/ QUOTE ]

That’s the same one, just over a year old so has gone a bit rigid now.

[ QUOTE ]
At around 5:00 it looks like your main line/slide line is anchored considerably below where you are making the cut, instead of anchoring it close to the cut, can you discuss that?

[/ QUOTE ]

I didn’t want to un/re-tie it all Cory. The branch wasn’t big so I wasn’t really concerned about it.

[ QUOTE ]
Maybe I'm not reading that right but there seems to be two ropes and two pulleys.

[/ QUOTE ]

Kevin, the speeline is routed through a suitable friction device at the base of the tree, up to and through the rigging point (pulley) and then down to the ground anchor at the landing. A second line (control and retrieve) is set up in the exact way but terminates where it is attached to the load.

Both pulleys in the picture are attached to opposite ends of the same sling i.e. in this instance the sling is tied to the limb by using a clove hitch, of which the two pulleys are attached to either end. However, the speedline-pulley is set a little higher than the other so the two don’t get tangled.

Also, the friction device controlling the actual speed-line ought to have some kind of mechanical-advantage/lifting option….as that’s the line which will pre-tension, raise or lower the load at a given time if so desired.

Thanks

 

[JesseHuffman]

Thanks for another free lesson.
Who needs Arbormaster with you around!
Nice set up.

 

[easyphloem]

Well done!


NIce friday night video!


SZ