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post #2 of Old 01-15-2010
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The major weakness of the CS30 for a voyage like that is stowage. I don't think you can store 300+ days worth of food aboard, and if you're not stopping, you're probably going to starve.

While a CS30 might be suitable, properly upgraded, for a circumnavigation, it probably is a lousy choice for a NON-STOP circumnavigation attempt. If you do a non-stop circumnavigation that passes through the antipodal points, then you're looking at a minimum of 24,000 NM of travel.

If you figure, on a good day, the CS30, which has a hull speed of about 6.7 knots...and would be lucky to do 5 knots on average.... you're looking at about 100 nm a day or 240 days of sailing. Figure a half-gallon of water a day, and you're looking at a minimum of 150 gallons of water alone, adding 25% for safety margin. That's 1300 lbs or so of water. Now, food—if you figure on three meals a day with some snacks, you're looking at about two-to-three pounds of food a day, unless you're talking about extremely concentrated high-calorie foods like emergency rations. Call it 2.5 lbs x 240 days x 1.5 for spoilage and emergencies.... that's 900 lbs. of food.

That's over 2000 lbs. for food and water on a boat that displaces only 8000 according to its specifications. That doesn't count the tools, clothing, gear, emergency spares, fuel or personal items that you would probably want/need along for a non-stop voyage.

Now, you might think that you can get a watermaker and use that... but prudent sailors would still carry enough water to finish their voyage without relying on the watermaker, cause if it dies on you, and you don't have enough water along, you're DEAD. Besides, watermakers are complicated, failure-prone beasties, especially on a smaller boat that doesn't have the stowage to carry spare parts.


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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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Last edited by sailingdog; 01-15-2010 at 03:32 PM.
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