If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Bonneville Power Administration Bell 407 - "BPA Bell 207 N794BP.jpg" yEnc (1/17)
|
#2
|
|||
|
|||
Bonneville Power Administration Bell 407 - "BPA Bell 207N794BP.jpg" yEnc (1/17)
On Fri, 23 Sep 2011 21:49:26 -0400, Glen Wattman wrote:
In this photo, the top and bottom "wire cutter" blades are nicely visible. Their function is to cut any power lines that the helicopter may accidentally fly through. Does anyone have any figures on how many such accidents occur in the US on a yearly basis? Is paying the cost of cut power lines part of the owner's insurance package? |
#3
|
|||
|
|||
Bonneville Power Administration Bell 407 - "BPA Bell 207 N794BP.jpg" yEnc (1/17)
Chris Richardson wrote in
news On Fri, 23 Sep 2011 21:49:26 -0400, Glen Wattman wrote: In this photo, the top and bottom "wire cutter" blades are nicely visible. Their function is to cut any power lines that the helicopter may accidentally fly through. Does anyone have any figures on how many such accidents occur in the US on a yearly basis? a very quick NTSB database shows 6545 incidents involving "wires" from 1969 to date.. If you really interested you can inspect all of those.. ;-) quick look at some, many involve crop spray operations |
#4
|
|||
|
|||
Bonneville Power Administration Bell 407 - "BPA Bell 207N794BP.jpg" yEnc (1/17)
On Sat, 24 Sep 2011 12:28:38 -0500, John Szalay wrote:
a very quick NTSB database shows 6545 incidents involving "wires" from 1969 to date.. If you really interested you can inspect all of those.. ;-) quick look at some, many involve crop spray operations Thanks for taking the time and effort to do that. I had no idea where such data could be located. It would seem that only specialized helicopter applications are prone to this kind of threat. Crop dusting is obviously one, and power line inspection, which is presumably the job of the chopper in this photo, would be another. Military helicopters would need the protection of wire cutters as well. But most helicopters take off from airports and quickly reach altitudes that place them far above low-lying power lines and cables. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Bell 47, Concluded - bell 47 71.jpg (1/1) | Mitchell Holman[_3_] | Aviation Photos | 0 | March 31st 09 12:41 PM |
Bell 47, Concluded - bell 47 69.jpg (1/1) | Mitchell Holman[_3_] | Aviation Photos | 0 | March 31st 09 12:41 PM |
Bell 47, Concluded - bell 47 67.jpg (1/1) | Mitchell Holman[_3_] | Aviation Photos | 0 | March 31st 09 12:41 PM |