Kevin Normoyle wrote:
>> As mentioned the lower section would be large (33 inch face) tower
>> with 3 inch diameter legs. The top would either be 55G or 65G.
> It doesn't matter whether you analyze the top section as if it started
> on the ground or on top of something else.
> It's the same analysis. right?. (except higher wind higher)
> the first post said
> "about 75 feet of 55G or 65G that would telescope into about the same
> length of larger tower (33 inch face, 3 inch legs),"
> Even chopping 15' off that for a joint, you're saying 60' of unsupported
> I guess you could say you're designing for 0mph wind. The problem is you
> want to design for close tolerances, so the top doesn't bang around a
> lot in a slight wind. But if it bends, then the tight tolerances mean it
> won't come down. So knowing whether the top section is going to bend
> seems important.
> Maybe you're talking about a shorter length of 55g.
I'm going to take a wild guess here - Stan has a pretty good idea about
what a length of 55G or 65G can handle unsupported, plans to retract it
except for mild weather contest weekends, plans an install in a place
where a failure wouldn't be catastrophic, and would like ideas about the
best way roll a length of it in and out of a larger tower. It's just a
wild guess mind you...
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