On 10/31/2013 7:10 PM, Mike Fahmie wrote:
Didn't this kinda minimize the gains of learning from your mistakes?
True, but it really helped others learn from your mistakes much more
pointedly than our system.
It added meaning to "Don't do it this way" and unlike the Affordable
care act, you selected your helpers/worker with care and kept them informed!
73
Roger (K8RI)
-mike-
________________________________
From: Patrick Greenlee <patrick_g@windstream.net>
To: towertalk@contesting.com
Sent: Thursday, October 31, 2013 11:03 AM
Subject: Re: [TowerTalk] minimum guy radius
During a period of the successive evolutionary improvements of the design of
arches in ancient Rome it was the custom that the architect/engineer would
stand under the arch as the scaffold was removed. This limited the maximum
number of catastrophic failures to one per architect/engineer. Sort of a
built-in Darwin award system.
Patrick AF5CK
-----Original Message-----
From: Jim Lux
Sent: Thursday, October 31, 2013 12:52 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] minimum guy radius
On 10/31/13 9:47 AM, Roger (K8RI) on TT wrote:
On 10/31/2013 9:25 AM, Steve Maki wrote:
A guyed tower can be designed for closer guying than that, no problem.
Takes more steel, bigger guys, bigger anchors, and careful engineering.
There's a 1000' TV tower near me with outer anchors at around 350'. The
wires are 3", and the tower is massive.
There's a lot of variables that can't be seen. The only spot available
for a self supporting cell tower in town was the corner of a parking lot
so they went 30 feet deep with the foundation. "The odds are" if this
is a commercial tower, they had to meet engineering standards. Course
every once in a while we read about something really expensive, folding
up.
The collapse of the pyramid at Meidum triggered a design change in all
subsequent pyramids, and a change in one undergoing construction (Bent
Pyramid at Dashur).. oops better pick a more gentle angle..
These things happen. Always have, always will.
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