aerial line trimming
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Bob Wulkowicz
ArboristSite Operative
Somewhere in the Pentagon, there's a group dicsussing using this for crowd control. (Only for the heathens, mind you.)
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Do you suppose it's got little wiggles to do Shigo cuts?
Bob Wulkowicz
That, my friends, is somebody's idea of the New Arboriculture. It's kinda like an upside down bucket truck, isn't it?
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Do you suppose it's got little wiggles to do Shigo cuts?
Bob Wulkowicz
That, my friends, is somebody's idea of the New Arboriculture. It's kinda like an upside down bucket truck, isn't it?
treeman82
Addicted to ArboristSite
Wayne McCormick from The Care of Trees was talking about using helicopters to do ROW work a while back. He said that in the beginning, a bunch of pilots got killed or seriously injured because when the "Saw" would get jammed in a tree, there would be no way to detach the saw from the helicopter and they would get dragged down or something when they tried to pull away. Now apparently they have some kind of latch which lets the pilot ditch the saw should it get stuck. He showed pictures of that being used in pines and it didn't look half bad as far as aesthetics go. However it looks like real garbage on deciduous trees.
John Paul Sanborn
Above average climber
Wow, pilot not being able to drop the payload!!!
For small unit insertion/extraction there is a method called SPIE Rigging.
one of the first things they tell you is that in canse of hydraulic failur in the helo, they will drop the stick. Not a nice thought, but it gives the pilot a chance to save the air crew.
BTW, this is a pic of the Marine Forces Pascific Band getting to play at Marine
Here is a good shot
for more dod a Google inage search on spie rig/ging.
Fastrope is neat too, hasty rappel on a 2 inch rope from a hovering helo 30o ft up.
For small unit insertion/extraction there is a method called SPIE Rigging.
one of the first things they tell you is that in canse of hydraulic failur in the helo, they will drop the stick. Not a nice thought, but it gives the pilot a chance to save the air crew.
BTW, this is a pic of the Marine Forces Pascific Band getting to play at Marine
Here is a good shot
for more dod a Google inage search on spie rig/ging.
Fastrope is neat too, hasty rappel on a 2 inch rope from a hovering helo 30o ft up.
Tom Dunlap
Addicted to ArboristSite
Chain saw on a rope
steve yorkshire
ArboristSite Lurker
does someone follow up after to tidy up or is wood just left where it falls ,looks terrifying for the pilot what voltage lines do they work on ?
Tom Dunlap
Addicted to ArboristSite
If you think that looks scary, I have an article from Smithsonian magazine about a company that puts repair crews up to work on live high voltage lines in a helo.
The repair tech wears a suit made of chain mail and is grounded to the helo. They bring the helo close to the wire and the tech takes a grounding clip and attaches it to the line. The pilot, helo and tech become enveloped in the current of the wire. The repairs are carried out with xx,xxxx thousand volts flowing over the whole shebang.
If I can find the article, I'll post the date.
Tom
The repair tech wears a suit made of chain mail and is grounded to the helo. They bring the helo close to the wire and the tech takes a grounding clip and attaches it to the line. The pilot, helo and tech become enveloped in the current of the wire. The repairs are carried out with xx,xxxx thousand volts flowing over the whole shebang.
If I can find the article, I'll post the date.
Tom
John Paul Sanborn
Above average climber
There has been some programming on Discovery and the like the past few years.
