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Line/Tree trimming by Helicopter................

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jltrent

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The helicopter hangs a long cable way down to a chainsaw type rig. This guy hovers, slowly lowers, and maneuvers to trim what he's after. It would take a set to do this job. Pretty amazing.......


Around the 5 minute mark it shows the saw at work.......

https://www.youtube.com/watch?v=KpwZ6c6ykNk
 

Caustic Burno

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jltrent":xq77gk5y said:
The helicopter hangs a long cable way down to a chainsaw type rig. This guy hovers, slowly lowers, and maneuvers to trim what he's after. It would take a set to do this job. Pretty amazing.......


Around the 5 minute mark it shows the saw at work.......

https://www.youtube.com/watch?v=KpwZ6c6ykNk

Pretty common here by the pipeline companies.
 

Bright Raven

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Wow! The feds contract a lot of aerial surveilance work by helicopter. They are precise machines but it is only a matter of time until that gets fouled up in a power line.
 

greybeard

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Bright Raven":ih93z1um said:
Wow! The feds contract a lot of aerial surveilance work by helicopter. They are precise machines but it is only a matter of time until that gets fouled up in a power line.
That is what the pickle handle/button is for. Any helo that is equipped to carry an external sling load has a quick disconnect hook.
Trip it, and whatever is suspended below drops free.

On the older helos, it was a handle, sort of like an emergency brake handle on a car. It actually pulled a cable that released the pelican hook.

Nowadays, it's all electronic over hydraulics most of the time. Typical of a modern transport helicopter's cargo and winch control console. (this one has 3 different hooks, so 3 different settings + 'all'.


picture upload
 

Bright Raven

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greybeard":25lljivc said:
Bright Raven":25lljivc said:
Wow! The feds contract a lot of aerial surveilance work by helicopter. They are precise machines but it is only a matter of time until that gets fouled up in a power line.
That is what the pickle handle/button is for. Any helo that is equipped to carry an external sling load has a quick disconnect hook.
Trip it, and whatever is suspended below drops free.

On the older helos, it was a handle, sort of like an emergency brake handle on a car. It actually pulled a cable that released the pelican hook.

Nowadays, it's all electronic over hydraulics most of the time. Typical of a modern transport helicopter's cargo and winch control console. (this one has 3 different hooks, so 3 different settings + 'all'.


picture upload

That makes good sense. Just got to trust that the quick detach doesn't malfunction.
 

millstreaminn

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The guys trimming the trees on the power lines at my farm were staying at my hotel. After work the pilot offered to take me for a ride from my farm to the hotel and back. Was only about an 8 minute flight each way but was cool. First time I've ever been in a chopper.

Another time we were putting an addition on the hotel and couldn't easily set the last 2 trusses with the crane we hired. We had a pilot staying at the hotel and he offered to set the last 2- 50' trusses with the gas companies chopper. We laughed when he offered, he said I am dead serious. We respectfully declined.
 

ez14.

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The chopper needs the island hoppers paint job!
 

hillbilly beef man

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They are used quite a bit around here in rough places. They do a dang good job trimming trees, but I do not want to be in 100 yards of one when it is working. It is amazing how far they will throw limbs.
 

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