[Cob] lifting vigas (JUDITH WILLIAMS

[Amanda Peck]

Very glad that an experienced person has looked at it and declared it OK.  
Uprights should do it..

By the way, Gin Poles were what I was thinking of--I don't think I quite 
understand them, but they are used a lot in standing up towers--windpower, 
boat masts, ham radio, even purple martin house supports.  I did first run 
into them in a book on natural building--pictures showing them putting logs 
on a (horizontal) log cabin.  (if I make a tabletop model I bet I'd 
understand them)

Here's a link, very much stressing safety, on how to put up your 
Southwestern Windpower assembly with a gin pole:

http://www.windsun.com/PDF/mw175t30.pdf
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Judith Williams wrote:

I thought long and hard about using this massive thing, got advice from 
someone with a lot of experience in this area. It will be supported on 
either end by anupright log of similar size and will carry several rafter 
vigas but is certainly up to the challenge. Thanks for the help.