[TowerTalk] Yagi Building Ideas

[Tom Hellem]

Mike-
Agreed, the U-bolts are reasonably fast if you have maybe 2 elements.
A C-3 has 7 elements, that's 28 nuts you have to keep track of, install,
tighten, etc. And if they are SS now you have to contend with the thread
galling issue. I was thinking more along the lines of something like
a couple hose clamps per element, a quick tightening with a nut driver
mounted in a cordless drill perhaps. One would need to have some sort
of fixture in place on the boom so the hose clamps would have something
to attach to. That is the part I am hoping somebody has already invented.
Or ????

K0SN

On Sun, Jan 1, 2017 at 9:20 AM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:

> The element to boom mounting using a U bolt is a pretty fast and easy
> method for mounting.  Also if you use their idea of rivets you can
> temporarily insert the rivets and tape over them to hold them in place.
>
> I suppose you could permanently mount a piece of aluminum on the booms and
> then u-bolt the elements to.  You would have to account for that mounting
> system in the design.  I am not sure what you would be gaining.
>
> W0MU
>
>
> On 1/1/2017 8:59 AM, Tom Hellem wrote:
>
>> Hi All-
>> Our radio club is building a yagi to be used mostly for Field Day type
>> setups.
>> It's modeled upon the F-12 C-3 line, with the difference being we are not
>> crazy about the element to boom mounting method with the u-bolts. I would
>> like to come up with something that is MUCH faster to assemble and
>> dis-assemble.
>>
>> We have a few ideas but would sure like to know of any others out there.
>> Do any of you have some that you would be willing to share with us and the
>> group?
>>
>> 73 and HNY to all.
>>
>> Tom
>> K0SN
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