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.