[TowerTalk] Raising mast?
   
    Tom Wagner
     
    tomwagner@mindspring.com
       
    Sat, 23 May 1998 08:05:40 -0400
    
    
  
K7LXC said:
>
>      Attach a pulley at the bottom of the tower and run the haul rope
through
>it. This is called a snatch block and changes the direction of the haul
rope
>run from vertical to horizontal. Since you will need 260 pounds of pull to
>hoist the mast (130 pounds up the rope inside the tower and 130 pounds down
>the rope on the outside of the tower), you'll need a lawn tractor, winch or
a
>bunch of friends to pull it up.
>
If I remember my physics, the tension in the rope with an ideal pulley is
130 lbs.
With real-world friction, it would be higher.
Tom - N1MM
take
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