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WSBTV Antennae replacement Atlanta

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WSBTV Antennae replacement Atlanta

Old 20th Oct 2019, 00:08
  #1 (permalink)  
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Join Date: Mar 2011
Location: London/Atlanta
Posts: 366
WSBTV Antennae replacement Atlanta

Happened this week.
Always admire the accuracy needed in contracts like this, and admire the guys with big balls to climb 900ft to unbolt the old and then guide the new antenna into place. Here is the news clip I found, pretty sure others may have better film of the operation.

https://www.wsbtv.com/news/local/atl...line/997941294

nomorehelosforme is offline  
Old 20th Oct 2019, 11:13
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Join Date: Oct 2006
Location: UK
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The registration appeared to be N906CH. Has anybody any idea of the history of this S61?
Fareastdriver is offline  
Old 20th Oct 2019, 12:20
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Join Date: Dec 2000
Location: uk
Posts: 247

Helicopter Sikorsky S-61N Serial 61-490 Built in 1971
Registrations:
N906CH
C-FHHD
G-BFPF
N61NW
​​​​​​​ZS-HDK
used by:
Northwest Helicopters CHI Aviation (Construction Helicopters Inc)
Hayes Forest Services
British Airways Helicopters
Caledonian Helicopters
Court Helicopters.

finalchecksplease is offline  
Old 20th Oct 2019, 16:04
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Join Date: Dec 2013
Location: UK
Age: 77
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Just to clarify the above, as G-BFPF this helicopter was with British Airways Helicopters from 1978 until July 81 when as British Caledonian Helicopters we operated it until Bristow took us over in November 1987. The ownership of all the ex-British Caledonian machines was then re-registered to Caledonian Helicopters at Redhill - to all intents and purposes they were Bristow machines. Until they were repainted in Bristow colours they were operated with the word "British" merely painted over. In early 1989 PF left the UK for Court Helicopters in South Africa. Good to see her still operational as a short 61.
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Old 22nd Oct 2019, 00:51
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Slight irony, we are collecting the now scrap antenna tomorrow morning on a truck, shame the S61 couldnít have delivered it while on line, our scrap yard is 2 miles away..
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Old 22nd Oct 2019, 15:37
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Join Date: Oct 1999
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Originally Posted by nomorehelosforme View Post
Slight irony, we are collecting the now scrap antenna tomorrow morning on a truck, shame the S61 couldnít have delivered it while on line, our scrap yard is 2 miles away..
which route, clear of residential areas, do you suggest they flew?
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Old 22nd Oct 2019, 15:55
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With respect to the original post. That is some good long line skill!

Want a job?
Salusa is offline  
Old 22nd Oct 2019, 17:46
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LRP
 
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Location: Arizona
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Lining up the bolt holes was a nice touch.
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Old 22nd Oct 2019, 22:07
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Originally Posted by LRP View Post
Lining up the bolt holes was a nice touch.
Would be even more impressive to do it without the guide wires doing the job...
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Old 23rd Oct 2019, 23:16
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Originally Posted by Nubian View Post


Would be even more impressive to do it without the guide wires doing the job...
Nubian
What Guide Wires, They may have had a short alignment pin at the top but there are no guide wires used in this process as the risk to the tower crew would be to high to be acceptable.

BK
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Old 23rd Oct 2019, 23:54
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Join Date: Aug 2008
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Originally Posted by Bksmithca View Post
Nubian
What Guide Wires, They may have had a short alignment pin at the top but there are no guide wires used in this process as the risk to the tower crew would be to high to be acceptable.

BK
The wires are visible at 1:21 and immediately afterwards the antenna can be seen rapidly rotating left and right as it lines up.
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Old 24th Oct 2019, 01:14
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Originally Posted by Hadley Rille View Post
The wires are visible at 1:21 and immediately afterwards the antenna can be seen rapidly rotating left and right as it lines up.
I will ask the question to the tower crew in the morning. Always best to get it from the horses mouth!
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Old 24th Oct 2019, 09:07
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Join Date: Oct 1999
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Originally Posted by Hadley Rille View Post
The wires are visible at 1:21 and immediately afterwards the antenna can be seen rapidly rotating left and right as it lines up.
Yes they are very clearly visible - one either side - also whilst it is on the ground.

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Old 24th Oct 2019, 13:03
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Originally Posted by nomorehelosforme View Post


I will ask the question to the tower crew in the morning. Always best to get it from the horses mouth!
By all means. I’m used to tower construction, so go right ahead. This technique of having 2 guidewires hanging from the flange is used extencively, as it makes sure the sections are alligned properly on top of eachother in a simple way.
This will also help stabilize the load from starting to swing when being lowered into place, as it acts like an anchor, and is making the job for the pilot a lot easier. You can see this from the gopro video how the antenna is offset to target, then it slides sideways in, then twists ("the pilot" align the holes ) as the antenna makes contact.

Bksmithca,

Nubian
What Guide Wires, They may have had a short alignment pin at the top but there are no guide wires used in this process as the risk to the tower crew would be to high to be acceptable.
BK
If you know this type of work and look for details as someone doing this type work, you see it quite easily.


Cheers





Last edited by Nubian; 24th Oct 2019 at 15:53. Reason: adding comments
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Old 12th Nov 2019, 11:23
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Originally Posted by Nubian View Post


By all means. Iím used to tower construction, so go right ahead. This technique of having 2 guidewires hanging from the flange is used extencively, as it makes sure the sections are alligned properly on top of eachother in a simple way.
This will also help stabilize the load from starting to swing when being lowered into place, as it acts like an anchor, and is making the job for the pilot a lot easier. You can see this from the gopro video how the antenna is offset to target, then it slides sideways in, then twists ("the pilot" align the holes ) as the antenna makes contact.

Bksmithca,



If you know this type of work and look for details as someone doing this type work, you see it quite easily.


Cheers




Here is another antenna job in the UK that clearly shows the use of 2 guide wires, also helps to make sure nobody gets their fingers chopped off!

https://www.liveleak.com/view?t=9qDu0_1573537613
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