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Nigel Calder

Isolated Prop Shaft

Ask Sail: I have installed a shaft-saver coupling on the prop shaft on my sailboat and have realized the shaft is now isolated from the ground. Is this a good thing, or should I put a grounding strap on the coupling?

To Freewheel or Not

I sail an S2 8.7 with a Yanmar 2GM engine. When sailing, should the prop be locked or should I let it freewheel? If I should lock it, is it better to put the transmission in forward or reverse?

Ask Sail: Diesel Desiccant Marinade

My question is this: what effect will diesel have on the blue desiccant beads in the H2Out? Is there some change I should make to the air vent?

Ask Sail: Voltage Drop

When I turned on my recently installed chartplotter, I got a “low voltage” message. Using a digital voltmeter, I measured 9.7 volts at the circuit breaker on the load side. Voltage on the battery side was 12.5 volts.

Running Hot

Steph Lakner of Annapolis, Maryland, asks:”I have a Westerbeke engine (circa 1987) on a Cal 28. The engine overheats (to 210-215 F) after about 20 minutes running at full rpm. The impeller is fine, but water flow is reduced beyond the heat exchanger. I have found no obstructions (broken vanes, etc). I brought the heat exchanger home and cleaned it with vinegar. It was

2009 Best Boats Small Boat Under 25Ft: Bug

The Optimist may be the most successful class in history. Thousands of kids around the world have cut their teeth sailing and racing Optis since the boat first appeared in 1952, but is that it? Must young sailors start out in a square boat that’s not too durable, not self-bailing, and needs fixed buoyancy bags? Yes, the Opti has earned its place by sheer force of numbers, and it’s going to take a

2009 Best Boats Performance Boat: Santa Cruz 37

In addition to the Santa Cruz 37, several performance/racing designs (King 40, A35 and A40 from Archambault, Andrews 28, and the Melges 20) debuted this year, and a case can be made for each design in this category. But the Santa Cruz 37 ended up narrowly edging out the others because it’s hit the sweet spot between racing performance, accommodations, and trailerability. For starters, the boat is

2009 Best Boats

October’s Annapolis Boat Show opened as Wall Street experienced one of the biggest sell-offs in history. With the scary economic news, it was easy to think that many people would put off investing in a new boat. That idea went out the window as VIP Thursday appeared to be more crowded than ever. Instead of panicking, sailors seemed to be turning to sailing, much as they did after 9/11—as a

Groundless Fears

Bill Schultz of Bay City, Michigan, asks:”I am installing a 24-volt battery bank in the bow of my 40-foot sailboat to power a bow thruster. Do I need to run a grounding wire to my engine block? Or can I use an alternative grounding site? What size wire do I need?”Nigel Calder replies:Technically, if the bow thruster has a case ground

Photo: Lydia Mullan

Part 2: The Doldrums to Belém

Editor’s note—This is the second installment of a story that began in the March 2026 issue.Click here for part one. I’m dimly aware of the

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From the Editor: Team Spirit

In tomorrow’s e-newsletter, we conclude the story of my transatlantic crossing with the Women Wave Project. For part one, click here. In retrospect, the whole crossing

Black Foils (NZL) and DS Automobiles France collided just seconds into the race. Photo by Felix Diemer for SailGP

Racing Collisions Raise Questions

You’ve probably seen the clips online. During the first day of racing in SailGP’s New Zealand series, the worst crash in the league’s six seasons

Photo: Tom Cunliffe

Cruising Tips

Log the Glass These days with weather forecasts available wherever there is WiFi, it doesn’t do to forget the old ways. Last season I was

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The Four Seasons of Boat Maintenance

Contributing Editor Christopher Birch’s much anticipated book The Four Seasons of Boat Maintenance is out now. Billed as “the maintenance manual that should have come

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