Speedline design

[Mr Fir]

So there's a job that requires speedlining. Never done it before so will do a dummy run up in the woods this weekend.

 

Found the best info at treebuzz.com articles and also ISA rigging book, didn't answer my question though.

 

2 Sycamores to dismantle, 15 and 20m tall. Horrible slope up to the trailer and limited space for rigging due to phone lines running all over the place (not impossible though). Also a 1m wall at the top to chuck everything up.

 

The pole in the pic is for an electrical line, bit of a concern but could redirect onto a vehicle as anchor perhaps.

 

Yellow = control line

 

After ideas and advice on setup:

 

Would you just setup the line in the larger, back tree and run the first off it or do the smaller one first as normal? Perhaps a floating anchor for the pulley at point 1?

 

Any thoughts? I'll try get pics (weather and pressure dependant) and report back next week.

[Stuart Witt]

Crane?

[Old Mill Tree Care]

Crane sounds good but the trees sound too small for a crane to fit clients budget.

 

What about a motorised winch? That may not help getting stuff over the wall though.

 

Is the brush going downhill (speed line) or up hill (skyline)? If uphill then a motorised winch would be a perfect piece of gear..

 

Finally, bonfire?

[testcricket01]

i would say if it has to be speedlined, i would direct it onto the back tree first off then u have more height in the line to clear obsticles etc.

 

but

 

there will come a point where you will be to low down and wont be able to speedline anything especially when it comes to the timber side of things.

[Mr Fir]

Crane is a bit pricey and doubt it'd fit under the wee bridge on the way.

 

From the trees it's downhill to the area we need it...

 

Good thinking about the extra height, not sure we'll need it but will keep it in mind. Quite right about the timber. Luckily it's staying on site so it's not a prob if it gets rigged normally later on - i'd like to fell it asap though hah!