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All Forums >> Radios, Batteries, Clubhouse and more >> Full Scale planes, cars, helis, boats >> Helicopters - Full Scale >> Static Electricity Charge
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Static Electricity Charge - 2/3/2007 3:48:03 AM   
Jackjet



Posts: 1003
Joined: 12/9/2001
From: Hesperia, CA, USA
Status: offline 		is there a shock hazard when working with hovering helis ?

Thanks,
Jackjet

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Jack Jet Williams
Hesperia,Ca
       Post #: 1

RE: Static Electricity Charge - 2/3/2007 4:17:34 AM   
hook124


 

Posts: 2
Joined: 1/12/2007
From: Junction City, KS, USA
Status: offline 		Yes, yes there is. In the right conditions it can be leathal. The Ch-47D (Chinook) is capable of creating up to 20,000 volts or so. I actually have seen this first hand. The ground was not completed and the guy hooking up to the hook on my chinook got a bright BLUE surprise! Me to as well. He was fine, just got a few days off of work!

(in reply to Jackjet)
       Post #: 2

RE: Static Electricity Charge - 2/3/2007 2:57:06 PM   
Rotorwrench



Posts: 50
Joined: 11/4/2003
From: Abbeville, LA, USA
Status: offline 		The weather conditions must right, cool and dry. I've been knocked down by a 206B hooking up a load. I'd hate to get zapped by a CH-47, that's got to hurt.

(in reply to hook124)
       Post #: 3

RE: Static Electricity Charge - 2/5/2007 6:51:30 PM   
Hooker50


 

Posts: 38
Joined: 8/17/2006
From: Lacey, WA, USA
Status: offline 		That's true. In dry dust enviroments it can take as little as 2 seconds after the Ground is detached from the Helicopter to generate the 40,000 volts of static charge. I used to do sling loads for Chinooks when I was in Korea and never used a Ground. Dumb luck I guess because I never got shocked, but a friend of mine almost got squashed by a Chinook while he was trying to hook up an ISU. There is nothing like standing under a 30,000lbs helicopter as its hovering over you. There are other hazards as well. Like the fact that a Max Gross Weight aircraft generates huricane force winds. I was once hit in the face with a pebble that the rotor wash kicked up and sent my way. I can send you video of the effects of rotor wash from a Chinook in the desert if you'd like.

(in reply to Rotorwrench)
       Post #: 4

RE: Static Electricity Charge - 2/5/2007 8:36:00 PM   
BarracudaHockey



Posts: 10114
Joined: 7/13/2003
From: Orange Park, FL, USA
Status: offline 		They taught us in aircrew school always let the winch hit the water to discharge the static, dont go grabbing for it while its in the air.

_____________________________

Andy - Helicopter Forum Moderator
AMA 77227 http://www.jaxrc.com

(in reply to Hooker50)
       Post #: 5

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All Forums >> Radios, Batteries, Clubhouse and more >> Full Scale planes, cars, helis, boats >> Helicopters - Full Scale >> Static Electricity Charge
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