Since my largest tower went up with a commercial tower company who
builds 400' plus towers, and who required the base be managed, I would
say there are definite disagreements about this. When lifting sections
with rings off supports, it can't be done safely and reliably, no matter
the skill of the crane op. A plain stick of Rohn 25/45/55 is a
different animal. Note the thread origin is about tower sections with
rings already mounted.
Grant KZ1W
On 10/17/2016 18:55 PM, Steve Maki wrote:
On 10/17/2016 11:53 AM, john@kk9a.com wrote:
The weight is irrelevant. A skilled crane operator can move the boom as
it is being lifted leaving the section on the ground as a pivot point.
Of course if someone wishes to build a slide or use a loader to move
the base as it is being lifted that is perfectly fine, but I won't be
doing this.
John KK9A
I agree. A good operator has no problem at all with this scenario, as
long as the crane is sized properly and can be positioned properly.
It's just a non-issue.
-Steve K8LX
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