[TowerTalk] Ginpole for 20 foot sections

[k1ttt@berkshire.net (David Robbins)]

n4kg@juno.com wrote:
>         Note the presense of MULTIPLE pulleys at the top
>         of the block and tackle.  A  GIN pole has only ONE
>         pulley at the top.  The only way to get a mechanical
>         advantage is to use a SEPARATE block and tackle
>         with a SECOND ROPE.  As I said before, this helps
>         the puller but does nothing to reduce the load on the
>         GIN Pole.   de  Tom  N4KG
> 

wrong... as i pointed out it is possible to get an advantage for both the puller
and the pole by the use of a single top pulley and a single travelling pulley. 
that is the basic 2:1 system where you pull down to lift the traveling pulley
and load up.

-- 
David Robbins K1TTT
e-mail: mailto://k1ttt@berkshire.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net

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