Downhaul hooks
wind.sh@dow
http://www.hotsailsmaui.com/2002/pages/Formula.html
The downhaul is via a large grommet; i.e., no pulleys.
I asked a buddy at store I trust about the Chinook pulley half way
down http://www.chinooksailing.com/web03/components.html (purple and
green pulleys) and he said that all such pulleys will break
eventually. Is there a reliable hook/pulley?
(PeteCresswell)
>I asked a buddy at store I trust about the Chinook pulley half way
>down http://www.chinooksailing.com/web03/components.html (purple and
>green pulleys) and he said that all such pulleys will break
>eventually. Is there a reliable hook/pulley?
In my experience, they all break eventually. Salt water
corrosion gets the rod the pulleys run on.
I accept the periodic replacement cost every few years in
exchange for the increase in rigging speed/convenience.
The ones I've used have always broken when downhauling the sail
(another reason I like to use a crank....).
When one breaks, I thread through the grommet and replace it
later.
--
PeteCresswell
ran...@aol.com
in 10 years.
(PeteCresswell)
> In fact, I've never had one break
>in 10 years.
Salt water use?
Do you know the brand?
--
PeteCresswell
nikita
extensions and haven't broken a single one yet (in 2.5 years). I can't
imagine rigging those sails without the hooks, I am always horrified
seeing others downhauling without them. There is just so much friction
- they either break the rope or break their backs doing it. Or end up
with marginal downhaul.
I have one Chinook hook and a few Epic hooks. For some reason Epic
seem more robust to me. I haven't seen any corrosion signs on them so
far. I would highly recommend getting a hook!
grayson
> In my experience, they all break eventually. Salt water
> corrosion gets the rod the pulleys run on.
i've seen one other type of failure with these hooks. the hook itself
just opens up. see photo:
this happened to me on my 8.5 ezzy infinity in underpowered conditions
right near the beach (thankfully) on my return from a pretty average
session. the hook was certainly not heavily loaded at the time it
failed, so it might have been a manufacturing flaw or something. the
same hook had experienced much heavier loading in previous sessions
and not failed though, so left me scratching my head anyway. the
folks at island sports sent me a similar hook made by aerotech and it
hasn't failed yet. looks almost identical to the chinook one but
matte black finish. i tend to doubt it's a stronger design. i think
my failure was just a fluke. anyway, that's about the limit of my
experience with hook failure for what it's worth.
oh btw, i've just recently started using the north power-xt extension
so i need no hook no more. :) love being able to adjust downhaul in
deep water.
sm...@fit.edu
do). Three ball bearing sheaves held in place with a stainless
housing. The assembly pinned to the grommet (rather than a hook), so
it was more permanent, but looked very strudy. You could use a quick
pin if you wanted to use it on multiple sails. If it's still
available, you can probably find it on Murrays.com.
sm
On May 16, 8:31 pm, "wind.sh@dow" <just lurking> wrote:
> I have this HotSails Formula-D in a 7.5:http://www.hotsailsmaui.com/2002/pages/Formula.html
>
> The downhaul is via a large grommet; i.e., no pulleys.
>
> I asked a buddy at store I trust about the Chinook pulley half way
> downhttp://www.chinooksailing.com/web03/components.html(purple and
Dan Weiss
>
> >I asked a buddy at store I trust about the Chinook pulley half way
> >green pulleys) and he said that all such pulleys will break
> >eventually. Is there a reliable hook/pulley?
>
> In my experience, they all break eventually. Salt water
> corrosion gets the rod the pulleys run on.
>
> I accept the periodic replacement cost every few years in
> exchange for the increase in rigging speed/convenience.
>
> The ones I've used have always broken when downhauling the sail
> (another reason I like to use a crank....).
>
> When one breaks, I thread through the grommet and replace it
> later.
> --
> PeteCresswell
Windshadow: Try the triple downhaul wheel that appears directly below
the two hooks on the Chinook site. Using a hook can screw up the
amount of extension needed, as well as allowing the tack to pull away
from the mast. This is the same as changing the stiffness/bend of the
mast itself, and the luff curve of the sail.
The wheel isn't perfect (it assymetrically loads the tack @ 6:1 b/c of
one wheel one one side and two wheels on another - the wheel tips and
can become misaligned at high DH numbers) but it works very well for
sails under 9.0 and those using less DH tension than big race sails.
Far better than any hook I've seen.
-Dan
bodn...@gmail.com
> I have this HotSails Formula-D in a 7.5:http://www.hotsailsmaui.com/2002/pages/Formula.html
>
> The downhaul is via a large grommet; i.e., no pulleys.
>
> I asked a buddy at store I trust about the Chinook pulley half way
> green pulleys) and he said that all such pulleys will break
> eventually. Is there a reliable hook/pulley?
if your grommet is big enough, the streamlined triple block tack block
is the best set up combined with a streamlined base.
http://www.streamlined.us/baseextensions.htm
Florian Feuser
> Streamlined used to make a very nice pulley (not sure if they still
> do). Three ball bearing sheaves held in place with a stainless
> housing. The assembly pinned to the grommet (rather than a hook), so
> it was more permanent, but looked very strudy. You could use a quick
> pin if you wanted to use it on multiple sails. If it's still
> available, you can probably find it on Murrays.com.
>
> sm
I used to have one just like that. It's now somewhere in the sand at
Gilgo Beach NY. You're welcome to it, if you find it - my KA's come with
ball-bearing sheeves now.
FWIW: It worked great, but the clevis pin was a pain to remove without
losing the ring. I replaced it with a push-to-release pin that was
truly usable single-handed.
http://www.apsltd.com/Tree/d78000/e75621.asp
(halfway down the page)
Florian
wtrplnet
news:1179417440....@h2g2000hsg.googlegroups.com...
Those are 'marine hardware' type units. Not as convenient as a hook but
they are pretty much bulletproof and built to resist the ravages of salt
water. They can be found at West Marine or other good marine hardware
stores.
Strange about the pully hook that 'opened up' in the post above. Those are
cast units and I've seen them break, but never bend before.
Alan