Hi TT's
Just to add to the experience of raising towers, I had a crane come in and
raise 140 ft of AB105. The lifting point was at 100 feet, all 3 guy wires
were attached, all the coaxes were strung, the prop pitch was attached plus
the mast. The tower bowed on lift off but survived!!!
That was 24 years ago when I did not know any better...
73 Hardy N7RT
At 04:14 PM 8/10/2007 -0400, Roger (K8RI) wrote:
>Take a look at the photos provided by Tom W8IJ and his tower raising and his
>contest station. They put up a substantial piece of 45G WITH the EHS guys
>attached and that is a lot of extra weight. IIRC they were going for 120 or
>140 feet in one lift but didn't due to the limits of the crane. Check out
>what they did as it should be a good expample with lots of photos. They
>ended up lifiting either 100' or 120' in one piece WITH EHS guys.
>
>I'll try to find the link again.
>
>Roger (K8RI)
>
>
>> Thank you all for the advice. Seem like most believe doing in "smaller
>> bites" is the way to go. Since the first set of guys are at 31' and the
>> second are at 61', top at 94' . I am now think of lifting the first 7
>> sections (70ft) thereby permitting 2 guy levels to be anchored before
>> raising the last 30ft of the Rohn 45g.
>>
>> The negative seems to be more crane time and not being able to run the
>> coax
>> on the tower before the lift.
>> I am still likely to have the rotor and mast in the 30ft lift.
>>
>> Still looking for more ideas and local expert HAM in Kansas City willing
>> to
>> advise.
>>
>> All the best,
>> Bill N1HWC
>> _______________________________________________
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>>
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