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[Towertalk] 450 line strain relief

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Subject: [Towertalk] 450 line strain relief
From: (Chris BONDE)
Date: Wed, 01 Jan 2003 11:30:05 -0800
At 09:37 PM 2003-01-01 +1300, Barry Kirkwood wrote:
>Thanks very much to all who contributed on this topic.
>My ladder line danced about madly in the breeze. Am looking at about 70ft 
>vertical drop, so stablisation might be a good idea.

Try putting a twist in the ladder line to avoid the dance by the wind.  You 
can see how this works by observing the tie-downs on a large flatbed 
trailer with tie-downs.  The ones with no twist try to 'plane' in the air 
as the truck moves, then the tension pulls it back.  The ones with a twist 
of just a half twist over the short length barely move.  My long line has a 
number of twists in the 30ft slopping (?) drop.  Very little dancing, just 
some graceful long moves.

Chris opr VE7HCB

>Thanks again: always impressed by the knowledge to be gained from this group.

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