[TowerTalk] how vertical is vertical

[KI7WX at aol.com]

A quick Google search reveals the following helpful post to TowerTalk back in Y2K. If memory serves, K7LXC has mentioned the 3" per 100 feet spec before on TT:



6.2.2.1 plumb - For guyed structures, the maximum deviation from the true vertical shall be one part in 400, (3 in. per 100 ft). 

For self-supporting structures, the maximum deviation from true vertical shall be one part in 250, (4.8 in. per 100 ft). 



If it were my tower I'd try to get the tower a lot straighter than a foot off. I'd also adjust the positions of the preforms and turnbuckles now to allow easy tensioning and adjustment down the road.

As written in the query he's just adjusting for plumb. Since this sounds like his first big tower you might remind him to adjust for appropriate guy wire tension too (Loos gauge, etc, etc).

Hope that helps. I spent the better part of a morning adjusting the guy wires on my 55G tower to get it straight and pretensioned properly. Could have gone faster with some additional hands, but took my time, was patient and it went fine. 

Mark
KI7WX