towers and guying is another example of misinformation! Let me suggest you obtain the facts next time you post or other wise state that it is your opinion. The company that manufactures the self-supp
I'd be interested in seeing this as well. Regards Mark VE7AFZ towers and guying is another example of misinformation! Let me suggest you obtain the facts next time you post or other wise state tha
It's Delhi, and it's because they use the same product in both their guyed and self-supporting applications. It simplifies production, I'd say. Since the Delhi towers were designed to be part of a gu
Wait a minute here. If the MANUFACTURER says to guy it, then it isn't a self-supporting tower. If the MANUFACTURER says don't guy it then it is self-supporting. Rohn 25 & 45 have a rating for self-su
Hmmm This was supposed to go to the group, but apparently I hit the wrong key...again. Angles are the angle between the tower and guy line. You can get the same answers by using the Sin of the angle
Thanks, this is usefull ! Regards Mark VE7AFZ Hmmm This was supposed to go to the group, but apparently I hit the wrong key...again. Angles are the angle between the tower and guy line. You can get
Now figure the leg compression (unguyed) during a strong wind. You will find that it's MUCH greater, and concentrates on the downwind leg(s), and the conclusion is that reasonable guying will invaria
Of course the self supporting structure is far heavier and more expensive than the guyed structure. It also takes a lot more concrete in the base. OTOH it takes up far less space, too. Were I not ret
Delhi made two styles of self supporting tower - the original necked "coke bottle" design and the more recent uniform tapered sections. Both can be extended with straight sections to significant heig
As a lawyer in a former life ... who has actually represented product manufacturers, and who has also sued tower manufacturers and won... I KNOW there is more to it than just avoiding legal claims. T
Guying is not a simple construct. The guys become part of the structure and add their own set of limitations along with the help they give. Guys at no tension will add practically nothing to the inst
You didn't ask for experience. I was trying to point out why it's not a good idea. Or proves you are lucky. Possibly those who have been working with this stuff for years feel the same way<:-)) "To m
Thanks Don for this information. Now here is a guy who actually knows what he is talking about, with lots of experience, knowledge and smarts about towers. Doug Delhi made two styles of self supporti
Where is it written that a self-supporting tower has to be guyed with the same tension as a guyed tower? Why can't the guys on a self-supporting tower have no to little tension? Think about it. Those
James, OTOH, some things are just...obvious. Otherwise we would feel compelled to pay for new engineering every time we added a dipole to our tower, because the manufacturer didn't specifically say t
Thanks for your insight Steve. Now if you would please provide us with a similar analysis in the buckling modes. It may take a bit more math (differential equations?) but the thought experiments ough
Bill In the past I've asked a couple of engineers if they could come with a counter example, and they couldn't, or at least didn't. If you're an engineer, maybe you would like to try.... 73, Steve K8
The following was Steve's question to me and my response which was snet off the reflector. Steve said:"Bill, Are you an engineer? If so, can you devise a case, using a reasonable tower and guy system
Well, OK, here was my response to Bill, also off-line. To maintain continuity, it's at the bottom. Steve K8LX Well Bill, I'll defer to your expertise, but in all the years this has been discussed, I'
It is easy to imagine a guyed self supporter that is unsafe. Self supporters are strong at the bottom and weak at the top. If you guy a self supporter to allow a huge antenna to be placed at the top,