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Coordinated universal time and the mystery of the vanishing 13 seconds Issue 19 : Jul/Aug 2001 The biggest disappointment of my early life, after the Santa Claus thing, was the discovery that “Time Se...

Picture of a windvane steering system

A system for cruisers that steers better than any crew and doesn’t drink your beer Issue 24 : May/June 2002 The wind is blowing 30 on your quarter, and the rain is coming in sideways. The seas and you...

Diagram of a transducer signal

The short course — the first in a series of overview articles for those who want just the big picture Issue 31 : Jul/Aug 2003 Two thousand years ago, during the age of the Roman Empire, weights were m...

Karen Larson checks out the new navigation tool aboard Mystic, a Weems & Plath Chartkit Plotter. The plotter comes with a case, facing page at left, to protect it when stowed. It fits flat against one side of Mystic’s wet locker. Facing page below right: a portable charting table which can be used in the cockpit. What a concept!

Two very different aids to navigation Issue 32 : Sept/Oct 2003 Back in 1968 when I was a navigating officer on the USS Newport News, we had a chart table that would hold a full-sized chart without fol...

Picture of a radio wave scale

Understanding and using your marine-band radio Issue 32 : Sept/Oct 2003 The primary short-range radio-communication system for most small craft is the VHF-FM marine-band radio. It is the communication...

Commemorative photo of Autohelm 3000 aboard Mystic, the editors’ C&C 30. This autopilot ran frequently for nearly 10 years. The day following this photo session, it failed. An indicator of how important this feature is aboard Mystic: a new autopilot was ordered immediately.

Significant advances in new generation of autopilots Issue 32 : Sept/Oct 2003 Not long ago, autopilots were little more than powered aids to steering with somewhat primitive designs and a reputation f...

An Ampair wind generator waits for a breeze in Bayfield, Wisconsin. Wind generators work best where steady trade winds blow.

See how the wind can fill your batteries as well as your sails Issue 33 : Nov/Dec 2003 Sailors have depended on the wind for propulsion ever since there have been sails. Now, however, not only can the...

Not large, but mighty, the new FogMate performs one of your many fog-related tasks for you.

When the fog arrives, it’s time to blow your own horn Issue 35 : Mar/Apr 2004 Operating your boat in a dense fog can be an anxiety-filled experience. You need to maintain a safe course; check your com...

Each GPS satellite contains an atomic clock, and by measuring the time interval between the transmission and reception of a satellite signal, a spherical “line-of-position” is created around each satellite.

GPS, the system that supports your navigational eyes in the sky Issue 35 : Mar/Apr 2004 In October 1957, the first man-made satellite was thrust into orbit around the earth. The USSR’s tiny Sputnik ha...

The front of the J. R. Overseas moisture meter, above, shows the moisture scale, while the back side, at left, shows the sensitive sensors.

A marine surveyor’s best friend Issue 36 : May/Jun 2004 A moisture meter is a marine surveyor’s best friend, but do you need to own one if you are not a surveyor? Basically there are two types of mari...

The typical GPS satellite-receiving antenna associated with a chart plotter is about the size and shape of a doorknob.

Electronic charts offer choices for every budget Issue 41 : Mar/Apr 2005 The typical chart plotter consists of a display unit, either black-and-white or color, and a GPS. The plotter displays your boa...

The horizontal beam width of a radar is very narrow, and is constantly rotating through 360 degrees (with the exception of some specialized radars that scan only a prescribed sector).

This proven safety feature is now practical for all sailboats Issue 43 : Jul/Aug 2005 Radar is an acronym for RAdio Detecting And Ranging. A marine radar is used to determine the distances and azimuth...

Radar diagram

Is it right for your boat? Issue 47 : Mar/Apr 2006 Retrofitting your sailboat? Thinking about upgrading your electronics? Wondering whether you should install one of those expensive new chart-plotting...

Although various-sized sandglasses could tell time in half-hour, one-hour, and four-hour increments, the half-hour glass was the most common aboard ships.

The way we keep time at sea Issue 48 : May/Jun 2006 The concept of latitude and longitude have been known since the early days of sail, but without accurate timepieces longitude readings required long...

OK, so it takes up a bit of cabin space, and it’s not as elegant, perhaps, as a built-in refrigerator, but Carl points out that this costs $600, plus another $125 to hook it up and keep it in place when under way. Converting his icebox to refrigeration would have cost him closer to $6,000.

Portable refrigerator provides economical ice Issue 50 : Sept/Oct 2006 Older boats lack many of the amenities found in newer boats. Chartering a newer Beneteau in the British Virgin Islands brought th...

Large yachts compromise economy . . . and sometimes the cooking facilities. When she was built, Julie, a 52-foot yawl, had all the conveniences, except for one. Frightened of most cooking fuels, her owner insisted on a simple two-burner Sterno stove.

Four basic elements of yacht design Issue 52: Jan/Feb 2007 WE ALL HAVE TO FACE THE FACT that there is no such thing as the perfect sailing yacht, with the possible exception of the one you just bought...

The sailboat Finisterre

A famous designer tells how yachts have changed Issue 61: July/Aug 2008 In honor of Good Old Boat’s 10th anniversary, I thought it would be interesting to look back over the changes in small-boat desi...