[TowerTalk] Tower collapses as its built.

[Steve Maki]

They separated way before the jib broke.

-Steve K8LX


On 12/01/24 5:18 PM, Ken WA8JXM wrote:
> Which seems to me that the sections did not separate as expected and the
> crane tried to lift the entire tower, including the lower anchored and
> guyed sections, and failed.  Whether  they missed removing a bolt or the
> sections were jammed, either way, they did not separate until the crane
> failed.
>
> Ken WA8JXM
>
> On Sun, Dec 1, 2024 at 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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