The typical turnbuckle safety wire is designed to prevent inadvertent unscrewing of the turnbuckle, either from vibration or random vandalism. It's not to support the tower in the event of a turnbuck
<The typical turnbuckle safety wire is designed to prevent inadvertent <unscrewing of the turnbuckle, either from vibration or random vandalism. <It's not to support the tower in the event of a turnb
Author: "Joe Giacobello, K2XX via TowerTalk" <towertalk@contesting.com>
Date: Wed, 13 Sep 2017 14:21:43 -0400
I had problems with turnbuckles unscrewing themselves. While not as sure as the wire approach many have described here, ever since I started using thread locking adhesive (Loctite, Permabond, etc.) I
Is this a galvanized turnbuckle or some other material or coating? My tower turnbuckles do not easily turn under tension. John KK9A I had problems with turnbuckles unscrewing themselves. While not as
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 22 Sep 2017 15:55:33 -0400
There is often a big difference between what is a proper turnbuckle installation and what the typical ham chooses and does. Likewise, I've never seen a turnbuckle unscrewing by itself. Vandals? Kids
There is a simple analogy to consider when thinking about turnbuckles loosening or not. Their threads are same 60 degree form and helix angles as common nuts and bolts. So if you think nylocks, lockw
You would think so. But guy wires (and turnbuckles) seem to be under a different dynamic situation than nuts and bolts in a motor for example. Vibrations are relatively slow, and tension never nears
There is another potential factor that I have not seen anyone mention specifically, that of resonance. The interplay of wind speed (constant or intermittent) and direction, wind vortices around the t
I had a Cushcraft 80-meter vertical once that broke exactly in half and folded over on itself. I had guyed it about 2/3 of the way up and apparently caused a resonance that fractured it at one of th
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 24 Sep 2017 01:59:42 -0400
It depends on the wire (size, length, composition, and the tension. I used to regularly climb a 200' commercial tower that had 1" wire rope for guys. there was an 18" tall, guy attachment point (don'
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Sun, 24 Sep 2017 08:05:28 -0500
At one time a 1610 ft (490 meter) TV tower at Caprock NM was the tallest manmade structure on the planet. The option to put on de-icing capability was not taken as it was decided (hoped) there would
My reference for noting that guys go slack is the K7NV FEA tower study. While Kurt doesn't note the stress in the downwind guys the lean of the tower at the top is pretty convincing to me that they s
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 24 Sep 2017 17:15:46 -0400
I've been at the top of my 100' 45G when the wind became so strong I could no longer work (probably 30-40 MPH) 40 MPH will bounce you against the tower and difficult to breathe with the wind 90 degr
<I've been at the top of my 100' 45G when the wind became so strong I <could no longer work (probably 30-40 MPH)? 40 MPH will bounce you against the tower and difficult to breathe with the wind 90 de
Has anyone seen a turnbuckle that also had nuts or nylocks on one or both sides of where each threaded rod screws in ? To pull that off, the nuts at one end would have to be reverse threaded. For a m
While I haven't built a tower FEA model and run my own Finite Element Analysis to check Kurt's work, I've been through his work several times and can't find fault. Not surprising, since he is much mo
Yes. The turnbuckles on one of my towers came with nuts on both sides. It has been long enough that I forget where I obtained those turnbuckles. After adjusting tension on all guys I tightened all of
Jam nuts (on both LH & RH threads) are common but not universal on stainless sailboat rigging turnbuckles. Every yard that has had my mast out also added safety wires. I replaced the wires after adju
Jam nuts (on both LH :& RH threads) are common but not universal on '' rigging tensions. Then silicon)))55 . For a max effort, 4 x nylocks could be used, _____________________________________________
Yesterday, my good friend, N4TY, and I finished putting up my Rohn 55 rotating tower, 155 feet. Today(3 hours ago) I finished going around a checking all the turnbuckles. Every one had jam nuts on bo