>On Tue, 07 Jan 1997 16:29:22 -0800 "C. Logan Dietz (KE5FI)"
><ke5fi@wt.net> writes:
>
>>1. Take a heavy rope and tie a hook on the end.
>>2. Hook the hook in the top of the mast on the tower.
>>3. Slide a pulley on the rope and tie the rope to a
>>tree-post-whatever.
>>4. Hang the (assembled) beam from the pulley.
>>5. Tie a rope to the beam.
>>6. Take the rope up the tower & pull beam up to the mast.
>
A useful refinement, courtesy W9LT:
U-bolt one end of a short (3 ft or so) but stiff piece of tubing to the boom
at the center, parallel with and approximately in the plane of the elements.
Attach a pulley to the free end of this "tiller", also riding on the tram
rope or wire or whatever (guy wire is better than rope, as less drag). With
the beam off the ground but reachable, adjust the u-bolts so that the
element tips are high enough to clear the top guys when it arrives at the
top. When you pull the beam up, the tiller steadies it so that it rides
element-tips-up all the way to the top, and also prevents it from rotating
in its harness under the main carrier pulley. The harness then needs only
be concerned with making sure the boom stays horizontal.
73, Pete Smith N4ZR
n4zr@contesting.com
West (bigawd) Virginia
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: K7LXC@contesting.com
Sponsored by Akorn Access, Inc & KM9P
|