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  #61  
Old 08-15-2008
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Welcome to Maxing Out

Here's a good read from a family that has been there, and done it!
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  #62  
Old 08-25-2008
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Here is the answer to my own question about big breaking waves:

Jordan Series Drogue - Wave Science

Another bit on the Jordan website about anchoring backwards!

Jordan Series Drogue - Mooring and Anchoring

I have no financial interest in anything related to Jordan Series Drogues...... They do make a lot of sense in their explanations.

Ian
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  #63  
Old 09-04-2008
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Here's an interesting point that Zack Smith makes about the Jordon Series Drogue in Sail Magazine.

In the May 2008 edition of "What a Drag," Kimball Livingston makes strong claims concerning the utilization of extensive Coast Guard testing in the Series Drogue Report, however these performance declarations on drogues and parachute anchors warrant further investigation

Donald Jordan, who authored the Series Drogue Report in 1987, did not compare his drogue design with drag devices commercially available to sailboat cruisers during the 1980’s. Performance characteristics of Jordon's drogue design were compared with an obsolete, traditional cone-style drogue manufactured with out-dated materials not commonly used by competing manufacturers at the time, such as Dan Shewmon or Para-Tech engineering. Without a proper product comparison, with up-to-date equipment, the degree of error is too high for the proposed measured statistics to be valid for cone- and parachute-type drogue models as listed in the report.

Modern instructions on proper parachute anchor deployment were unheeded in Jordan’s tests, particularly those concerning weight management. Weight placement on the parachute or rode is essential to remove slack to prevent a boat from falling beam to the seas. Jordon's report does draw reference to the importance of weight for the success of his series drogues, however its inclusion is not specific to Jordan's designs; weight incorporation is common practice and has been employed in the majority of drogues and parachute sea anchors for the past several decades. This is something not clearly emphasized in the report.

It is important to note that these oversights do not negate the entirety of the Jordon report. Observations in every report help lay the foundation for our field's base information and facilitate the need to conduct further research. Obtaining a broad spectrum of up-to-date technical knowledge is key to successful product advancement and insightful development reports.

As an offshore sailor, I recommend choosing a product that you are more likely to deploy—drogue or parachute. Apart from personal preference, it is best to compare ease of use, component strength, and reliability between leading products. If the product breaks, needs to be cut loose, or requires a lengthy setup, it is not going to be of much use, especially in a life-threatening situation.
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  #64  
Old 09-05-2008
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Marshy,

the fifth edition of Heavy Weather Sailing (Adlard Coles / Peter Bruce) includes a chapter on drag devices. It documents some trials undertaken between 1996 & 1998. It is pretty comprehensive utilising four different yachts and covered parachute sea anchors, series drogue, galerider, an old car tyre, a sail, etc, etc.

Unfortunately the conclusion was...it depends. No one device was best, it really depends on the circumstances, how severe the weather is, how much drag you want, etc. They did suggest that in really bad conditions (plus force 10?) facing bow into the seas maybe better (either hove too, under power or lying to a sea anchor) to avoid pooping, becoming unsteerable or pitchpoling.

Worth a read if you are interested in the subject.

Ilenart
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  #65  
Old 09-05-2008
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Ilernet,

I have to agree. It depends... So maybe personal preference should be the determining factor for everyone. We could buy another heavy weather book as you suggest, but the Jordan Series Drogue will never be an option for us. Para-Tech and Fiorentino offered us straight information. My husband decided on the Fiorentino, because he liked it better.
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