Thanks, Kent, your explanation makes sense. Guess I've been
over-engineering my lines for a long time...Oh well, better safe than
sorry, I guess. Sure could have saved a few bucks tho.
Rich Gort
WWP19 #202 SAYOKO (Oct, 83)
Lake Stevens, WA
> > On Sun, 13 Feb 2000, Ted Duke wrote:
> >
> > > Robert,
> > >
> > > Yes, try it with single blocks. You can always adddoubles. My idea
> > > was to lighten load on line and make raising easier.
> >
> > One of you engengers please help me. Just how does adding blocks lighten
> > the load on the line? I can see how it makes raising easier by adding
> > distance and thereby reducing the force required to move it a given
> > distance, but overall I would think the work and the load on the line
> > would be the same either way, or maybe even more with more blocks, given
> > that there must be some resistance in each block. Is my thinking screwed
> > up?
>
> Fixed support
> -------------
> |
> |
> | winch
> | ------
> | /
> | /
> | /
> | /
> O/
> +-------+
> | load |
> +-------+
>
>
> Notice how each length of rope is carrying half the load? Extrapolate.
>
>
> --
> Kent Crispin "Do good, and you'll be
> kent@songbird.com lonesome." -- Mark Twain
>
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