[TowerTalk] Tower Stacking - Trylon ST

[K7LXC at aol.com]

In a message dated 4/16/04 11:42:15 PM Pacific Daylight Time, 
billaustin at powernet.net writes:

> I'm ready to start stacking my tower.  It's a freestanding 60' Trylon 
>  ST.  There are six 10' sections.  We are going to lift the first section 
>  into place using a backhoe.  The plan is to then use a gin pole to raise 
>  the other 5 sections.  I have a 12' piece of 2" pipe, and a Trylon gin 
>  pole kit from w9iix.  I also have one of the Tower Jack pulley's (Tower 
>  Block) to go at the base for horizontal pulling.  My big concern is the 
>  weight of the sections.  The top section weighs about 120lbs and the 
>  bottom comes in around 240lbs.
>  
    First, the Tower Block isn't going to fit on your Trylon legs - they're 
60 degree angle as opposed to the round-legged design that the TB is designed 
for. 

    All you have to do (after making sure your ginpole is lashed to the tower 
leg) is to use a double-block arrangement. You have the rope tied to the top 
of the ginpole, it goes down to a pulley where the load is attached, the rope 
goes up to another pulley at the top of the ginpole, and then down to the 
ground. This is a block-and-tackle arrangement that'll give you a 2:1 mechanical 
advantage. 

    Good luck! The last time we erected a Trylon like this, we put up 56 feet 
in about 3 hours.

Cheers,
Steve   K7LXC
TOWER TECH -
Professional tower services for commercial and amateur 
888-833-3104