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Anyone done helicopter tree work?


Island Lescure
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Sorry not been back on.

 

But i'm sure u've found picutres of skylines by now, basically a few great big winches mounted on a 360 with an extended boom which helps to stop the stems digging in as someone said earlier, the extra elevation may be quite handy on a long uphill drag.

 

Tend to be fair common on ur axe men programmes but u can use them similar to a big winch without the line suspended and use the smaller drums to pull ur cable down the slope after each turn. Will save a lot of walking for ur men.

But a tractor and double/triple drum winch could do the same albeit with a lower pulling point.

 

Some of the big winchs i've seen are mounted on dozers but often are only single drum so be a pain for multiple long drags as u'll have to drag the heavy cable downhill after each turn, could be worse thou u could be dragging the cable uphill.

 

Not sure how common they are in eng but know of a few folk in s scotland have 1 sitting in their yards, think a few scattered about wales as well

 

 

Heli's tend to be used quite often for raised bog or some types of heathland regen/re-instatement (usually felling birchy, scrubby type growth) as quite a vurnerable ecosytem esp ur raised bogs the surface vegetation is all mosses and stuff so very easily damaged, sometimes they're not even keen on u walking on them.

We went on a field trip to 1 and just had to look at it from over the fence

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Not read all the thread, so someone may have mentioned this before.

 

Would it be possible to install an in-water filter down-stream of the works and over pump the water? Something as simple as an inflatable dam with a terram barrier and a 6" pump with adequate bagging?

 

I know that BiFOR relatively recently used a heli to lift in all the infrastructure towers to establish the lab in the woods. They used a Swiss company to do it. I believe they tried a sea-king chopper but it wasn't accurate enough.

 

Might be worth contacting BiFOR if the heli is still an option?

 

David

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A possible bodged alternative if a skyline is hard/expensive to find.

 

If u went with a atleast a double drum tractor winch, if u had some big trees somewhere around where ur winching ur trees too/stacking area, u could put a block up the tree if strong enough etc would give u the extra hieght/lift for the long up hill drag. Otherwise point the stump base so no flat edges to catch.

So similar benefit as wot the skyline would give u, althou would still lack in power and winch speed over the sky line but save u in low loader costs .

 

With a 2nd block at bottom to pull cable back might not be a bad set up if u have tree/anchors in places u can work around.

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Cost of moving a skyline and set up would be ridiculous for a small amount, your average run of the mill skyline only lifts a ton at a time, that's assuming suitable anchor trees and rigging trees are available.

An awful lot can be winched in a day just ground winching, and even a 5/ 6 tonne winch will move a substantial piece , there is always the option of putting a block in to double up or divert pull. If the tree digs in? change the chain round on the tree and roll it.Swing the tree so it is being pulled tip first,...theres always a way .

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