[TowerTalk] Fwd: Advice on Old TV Antenna Tower

[N1BUG]

Try climbing 75 feet of Rohn 6, then 10 feet up a fixed aluminum 
mast that is guyed 20 feet above the tower. The tower flexes and 
twists, the mast flexes. Fortunately I will be doing that for the 
last time in a few weeks when the whole thing comes down to be 
replaced by 100+ feet of Rohn 25.

Paul N1BUG


On 07/01/2017 08:05 PM, Hans Hammarquist via TowerTalk wrote:
>   
> I was told that aluminum towers are more springy than steel towers. Mine is
>   an aluminum, guyed though. I still experience the vibration when I am in
> between  the ground and the guy point. Was very scary the first time I
> climbed it but am  use to it now.
>   
> I believe the "Q" value of aluminum is higher than steel. Therefore the
> aluminum tower vibrate more than steel towers when you climb them.
>   
> Any takers?
>   
> Hans N2JFS
>   
> In a message dated 7/1/2017 1:37:30 P.M. Eastern Daylight Time,
> john at kk9a.com writes:
> 
> My 60'  Universal Aluminum tower used to move when I climbed it.  It  seemed
> like a lot of movement but as Jim said it probably was not. I sort  of got
> use to the movement and never had an issue.
> 
> John  KK9A