--- In harryproa@yahoogroups.com.au, Mike Crawford <jmichael@g...>
wrote:
>
> <<A drogue is to slow the boat down and keep it moving slowly in
the
> desired direction and keep it pointing in the right direction i.e.
> broach prevention. >>
>
> Definitely.
>
> My goal would be simply to keep the boat upright and facing
windward
> with as little stress as possible, so I'd either go for drogues or
an
> undersized parachute. Probably drogues because there are so many
> redundant pieces, making them less prone to fouling or failure.
>
> This would be the case regardless of the orientation of the boat
> (either bows to weather or windward hull to weather, a separate
debate
> to which there has already been plenty of activity).
>
> I'd keep a real parachute anchor on board just in case I needed
to
> minimize leeward drift, but use it only when absolutely necessary.
>
>
> <<A parachute anchor is to anchor the boat. It should keep the boat
> stationary relative to the body of water. Who would anchor their
boat
> from the stern?>>
>
> I agree with you that anchoring a boat from the stern could be
> foolish. Anchoring the boat and taking the force of the storm aft
would
> be looking for trouble. I'll buy the argument that keeping the
stern
> windward could work IF you're still actively moving leeward and
slowly
> drifting up wave faces (using the directional stability of the bow
to
> keep the boat in line). But only with drogues.
>
> This is where I'll differ with someone's previous post. One
actually
> can move leeward, through the water, when using drogues. That's
the
> point. Just because waves move leeward does not mean that all the
water
> itself is moving leeward. Waves are simply a surface feature
created by
> the wind, and do not represent a moving current. In fact, as some
have
> pointed out, they can be against the current. You can still move
> through the water leeward even as waves overtake you.
>
> Fortunately bow vs stern would appear to be a non issue with the
> proas. The question is how much you want to slow your progress
leeward
> and/or how much force you want pulling your boat into the proper
> orientation.
>
>
> <<Professional fishers make significant ground to windward off the
east
> coast of Australia by harnessing the southerly current using a
parachute
> anchor. >>
>
> Neat. That's either convenient, gutsy, or crazy, depending upon
the
> weather. My hat is off to anyone who works for a living in the
Southern
> Ocean, Bering Sea, or North Sea. I'm not that brave.
>
>
> - Mike
>
>
> nudd@o... wrote:
>
> > More confusion.
> > A parachute anchor is an anchor, not a drogue.
> > Different devices, different purposes.
> > A drogue is to slow the boat down and keep it moving slowly in
the
> > desired
> > direction and keep it pointing in the right direction i.e. broach
> > prevention.
> > A parachute anchor is to anchor the boat. It should keep the boat
> > stationary
> > relative to the body of water. Who would anchor their boat from
the
> > stern?
> > Professional fishers make significant ground to windward off the
east
> > coast of
> > Australia by harnessing the southerly current using a parachute
anchor.
> > PN
> >
>
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