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From: <Jack_Martin_at_jtif.webfld.navy.mil>
subject: [Paddlewise] Sea anchors
Date: Thu, 10 Dec 1998 08:23:35 -0500
     Does anybody have a gouge on how to make a fabric sea anchor, by any 
     chance?  I know of one available commercially --- think it's Boulter 
     that makes one --- but was hoping there might be some home made specs 
     out there on the list.  Seems like a reasonable winter project, and an 
     interesting toy to add to the deck clutter.
     
     Jack Martin
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From: Mark H. Hunt <mhh_at_aretha.jax.org>
subject: Re: [Paddlewise] Sea anchors
Date: Thu, 10 Dec 1998 10:46:04 -0500 (EST)
    I seem to remember seeing a short, well-illustrated article in sea 
kayaker relating how to put together a drogue though I can't give you a 
more specific issue number since I'm hard at work here....;^)
                                                mark
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From: John Somers <somers_at_utmbrt.utmb.edu>
subject: Re: [Paddlewise] Sea anchors
Date: Tue, 15 Dec 1998 15:19:26 -0600
At 08:23 AM 12/10/98 -0500, you wrote:
>     Does anybody have a gouge on how to make a fabric sea anchor, by any 
>     chance?  I know of one available commercially --- think it's Boulter 
>     that makes one --- but was hoping there might be some home made specs 
>     out there on the list.  Seems like a reasonable winter project, and an 
>     interesting toy to add to the deck clutter.
>     
>     Jack Martin
>
Jack, I have been away for a few days, but located my reference on these:
it's a book by Earl R. Hinz called Understanding Sea Anchors & Drogues,
Cornell Maritime Press, 1987, ISBN 0-87033-375-5

	I got my copy from the used book section at the local chart and nav book
store.  This is written by and for bluewater sailors, so the dimensions are
mostly larger than we would use for sea kayaks, but the fundamentals are
well covered, and there is enough sea lore and description of real
experiences to keep it interesting.  With some adaptations you can probably
come up with some designs to try for sea kayaking.  One significant
difference may be the water depth and wave characteristics in use.  For sea
kayaking most (not necessarily all) use would likely be in water shallow
enough that the waves are steepening and forces related to the sea floor
come into play.  
	Previous sea kayakers who have used and mentioned sea anchors include
Steph Dutton in Sea Kayaker magazine, Hans Lindeman (Alone at Sea), and
Arthur Hebert in his crossing of the Gulf of Mexico.  
	My impression is that adept use of these things can be a real challenge,
but the payoff could be major when they are needed.  Not for the dabbler,
they appear to require thorough understanding as well as much learning and
practice before actually needed.  That may be part of the reason why they
have mixed reviews even from experienced bluewater sailors.  
	The expensive Driftstopper by Boulter of the Earth has some innovative
rigging, deployment and deck storage features that are well worth looking
at.  I would also caution that stresses transferred to the deck in use
could be potentially damaging, depending on conditions.
	I think this is an intensely interesting subject and would like to know
how it works for you.

	Cheers,
		John


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