In a message dated 97-03-27 03:09:36 EST, you write:
> I have seen Rohn advertising a 5 ft base section for towers. Is this
> necessary? Can I just use a 10 ft section as the starting point in my
> tower base?
Hi, Mike -
Rohn makes a short base (SB25G, etc.) that is identical to a ten foot
section but only 1/2 the height at 5 feet.
The SB uses the same materials so there is no advantage to using it
strength-wise. It does, however, lack the leg coupler at the bottom of the
section since it is supposed to be buried in the concrete base. Pricewise,
the SB45G runs $18.60/foot and the 45G straight section is $24.10/foot MSR so
there is a price advantage to using it. So the bottom line is that it is
cheaper to bury the SB than a good 10 foot straight section.
73, Steve K7LXC
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