[TowerTalk] Small mast design - comments?

[Floyd Rodgers]

During field day one of our members uses telescoping pvc tubes with hose clamps to secure when extended. Think they are about 35 ft when extended and hold up a couple of delta loops with 3 guys. Works like a charm and is pretty inexpensive.

Floyd KC5QBC

> On Nov 12, 2020, at 5:40 PM, jimlux <jimlux at earthlink.net> wrote:
> 
>> On 11/12/20 2:31 PM, john at kk9a.com wrote:
>> Wow, are those bolts small!
>> John KK9A
> 
> 
> yes - if you've got 1 1/2" and 2" tubes, you could use a 3/8" bolt with no problem.
> 
> I'd actually use a quick pin with a captive cotter - like you see on trailer hitches.  No fumbling around with nuts and washers.
> 
> https://www.grainger.com/product/BUYERS-PRODUCTS-Safety-Pin-426V29
> 
> 
>> Ross Tucker wrote:
>> The upper section of mast is 12' of 6061 aluminum, 1-1/2" diameter, 1/8"
>> wall thickness. _IF_ by some miracle, it happens to telescope, that's
>> great, but my assumption is that I will bolt this side-by-side to the lower
>> mast at three places, using #6 SS bolts (4" long). Just below each antenna,
>> we will attach guys running forward and back along the RV.
>> Am I missing anything important?
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