Nice pics. The shots of the philly terminations are helpful.
So, if shackles are required to mate the specified 3/8" thimble with the
specified 1/2"x12 turnbuckle, why doesn't Rohn put shackles in the parts
list? Everything else is there. It would seem that every person who has ever
put up a tower with 1/4" EHS must have run into this problem!
73, Dick WC1M
-----Original Message-----
From: W3YY [mailto:w3yy@cox.net]
Sent: Wednesday, August 30, 2006 8:52 PM
To: TowerTalk List
Subject: Re: [TowerTalk] Rohn 55 thimbles and turnbuckles
Dick -
Use of shackles is a good solution when a heavy-duty thimble won't fit or
you need to connect an assembled thimble to another closed-loop. I ran into
that problem when connecting my Phillystran to my torque bars. See
www.w3yy.com Projects | Phillystran for pictures. Use high quality shackles
and you should be fine.
73, Bob - W3YY
----- Original Message -----
From: "Dick Green WC1M" <wc1m@msn.com>
To: "Tower" <towertalk@contesting.com>
Sent: Wednesday, August 30, 2006 11:47 PM
Subject: [TowerTalk] Rohn 55 thimbles and turnbuckles
Reviewing the Rohn parts list for a 110' 55G tower @90-100MPH, I decided to
go with ¼" EHS for all three levels (actually, 6700lb Phillystran with ¼"
EHS leaders. Following the parts list, I ordered 3/8" heavy-duty thimbles
(3/8THH) and ½"x12" eye-jaw turnbuckles (1/2TBE&J). Rohn specifies that the
thimble should be one size larger than the guy diameter. The parts have
arrived, and I'm perplexed to find that the 3/8" thimbles don't fit inside
the eye part of the turnbuckles. I might be able to make them fit by
flattening the edges of the thimble a bit (sandwiching it between a piece of
two pieces of flat steel and hammering the flare out of the edges), but
before I try that, I'd like opinions on this. I can't be the first person
who has run into this. It looks like a shackle would work, but Rohn doesn't
specify them for 55G towers. Comments?
73, Dick WC1M
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