You might want to look at the Heights Tower Site. They make a Fold-Over kit
that would make your life easier.
That is, unless you want to put up a DB42 MonstIR !!
73, Dick, W1KSZ
On Thu, Aug 9, 2012 at 12:04 PM, <Cqtestk4xs@aol.com> wrote:
> Jerry
>
> Aluminum towers tend to flex....not a bad thing. but, the flexing does
> cause the bolt holes to "egg" over time...resulting in a bigger and bigger
> hole, which causes more flexing and a bigger hole...and so on.
>
> There is a difference in climbing a steel tower and an aluminum tower.
> The flex on the aluminum tower can be unnerving if you don't climb a lot. I
> feel far more comfortable at 200 feet on a guyed Rohn 55 than at 60 ft on
> an aluminum tower.
>
> YMMV
>
> Bill KH7XS/K4XS
>
>
> In a message dated 8/9/2012 6:24:44 P.M. Greenwich Standard Time,
> jerryw6uv@gmail.com writes:
>
> I plan to install a 50' tower and a tri-bander for 20/15/10 and was
> originally considering a U.S. Towers 55' crank-up model. While researching
> towers, I came across a company called Universal Towers that sells
> aluminum
> free-standing towers.
>
> Based on the specs, the Universal Towers HD-21-50 aluminum tower looks like
> it might be a better fit for the following reasons:
>
>
> - * At $1989 it's $2K cheaper than the U.S. Tower crank-up
> - * It only weighs 190 pounds (spread over five 10' sections), versus
>>800 for the crank-up, making it a lot easier to get off the truck with
> fewer people
> - * The base doesn't require a rebar cage, making installation simpler
> - * It won't rust
>
>
> The HD-21-50 is rated at 21 sq.ft. at 110 MPH, while the U.S. Tower
> crank-up is rated at 30 sq.ft. at 50 MPH.
>
> The installation instructions for the aluminum tower says to assemble the
> tower on the ground, attach the antenna(s), and then walk it up. In my
> case, I don't have 50' of horizontal space to do this. Is it feasible to
> climb this type of tower and assemble it vertically section-by-section with
> a gin pole? (Whatever I put up will be installed by a professional tower
> installer.)
>
> Any reason why I shouldn't consider this aluminum free-standing tower?
>
> - 73, Jerry
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