[TowerTalk] Tower collapses as its built.
Steve Maki
lists at oakcom.org
Sun Dec 1 17:23:10 EST 2024
Thank you - I was going to do that; probably would not have been so concise.
A video can be way more powerful than a local observer (who may have
skin in the game, possibly a crane company employee?)
-Steve K8LX
On 12/01/24 4:12 PM, maflukey at gmail.com wrote:
> If the video is advanced frame-by-frame at about 7 to 8 seconds the jib can be seen to deflect downwards continuously until failure occurs. If the strap broke first, the jib reaction prior to failure would have been upwards in the opposite direction due to the instant release of bending tension. The full counter-reaction of the boom goes off screen at about 9 seconds as the camera follows the fall of the tower section, but reappears at 11 to 13 seconds when reverse curvature of the boom from the counter-reaction is visible through the first boom oscillation.
>
> Matt
> KM5VI
>
> -----Original Message-----
> From: TowerTalk<towertalk-bounces at contesting.com> On Behalf Of Fernando Semiao
> Sent: Sunday, December 1, 2024 4:55 AM
> To:towertalk at contesting.com
> Subject: Re: [TowerTalk] Tower collapses as its built.
>
>
> Sorry you are very wrong, was you there? It was the choke strap that give away., don,t ask me how i know....Its very sad you ham's keep inventing crap no wonder hams have a bad name. You and allot of hams folks see shit on this video.... thats what you seen Oh sorry tomorrow its the hole crane fell sideways.
>
>
> On 11/30/2024 3:34 PM, Jim W7RY wrote:
>> Heck with the strap....
>> n
>> The entire TOP JIB broke in two.
>>
>> Jim W7RY
>>
>>
>> On 11/30/2024 1:08 PM, Steve Jones wrote:
>>> Looks like the cable was not attached to the tower properly. I think
>>> I could see the strap around the upper section break.
>>> 73,
>>> Steve
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: TowerTalk<towertalk-bounces at contesting.com> On Behalf Of
>>> john at kk9a.com
>>> Sent: Thursday, November 28, 2024 9:25 PM
>>> To:towertalk at contesting.com
>>> Subject: [TowerTalk] Tower collapses as its built.
>>>
>>> The video short linked below from HamRadioClubLuzerneCoPA happened to
>>> pop up on my computer today. That installation became very
>>> dangerous. I wonder if anyone knows the details? Hopefully there
>>> were no injuries.
>>>
>>> https://www.youtube.com/shorts/Gm-bq3ynSuU
>>>
>>> John KK9A
>>>
>>>
>
>
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