Blind Faith

<br Without question, fog is the biggest reason sailors cite for avoiding the Maine coast in summer, despite the fact that it is otherwise an excellent cruising ground. Although sailing in Maine can indeed be quite opaque, this need not be too disconcerting. Instead of being mindlessly fog-phobic, it is better to view fog, wherever you meet it, as just another navigational puzzle to be
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No matter what others say about the dangers of combining fog with inflexible schedules, skippers will still sail off into thick pea soup, common sense be damned. Someone’s timetable inevitably “forces” a cruise through the grey wilderness. Many may vow “never again,” but they do it again anyway, so I will spare you my own advice about never venturing out if visibility is less than a quarter of a mile.

Instead, I will tell you this: all fog ends. And it gets thinner. Exactly when and how depends a lot on what kind of fog you have in the first place. To live with and conquer fog, you must understand what it is and know how to cope with it.

Hear No Evil

Audio cues like crashing surf, boat engines, barking dogs and sea birds can be just as important when sailing in fog as the bells, gongs and whistles on navigation aids. Sometimes they are more important. In any case, your hearing can often be much more useful than your eyesight when fog gets really thick.

So the first rule is this: use your engine as a last resort. Like blinding headlights on a dark road at night, your engine impairs your hearing not only while it’s running, but also for several minutes after you shut it off. Even if you post a lookout on the bow, well away from the engine, its drone can make it hard to pick out the first sounds of an approaching powerboat, crashing surf or other important features in the aural landscape. So use your sails first and foremost; leave the auxiliary for dead calms. When you do motor, shut down the engine at frequent intervals and listen closely to the world around you.

Remember, too, that some points of sail are better for hearing danger than others. In general, sailing upwind in fog is safer than sailing downwind. Sailing upwind, sound is carried to you; sailing downwind, it is carried away. And, of course, a moderate breeze will carry sounds farther than a light one.

The thickness of fog can also affect whether you hear things sooner rather than later. In 100 feet of visibility or less, only the loudest foghorns are of much value, and even their locations can be hard to pinpoint as sounds can literally bounce off fog banks of varying thicknesses. Sounds may disappear and reappear. You should never assume you are going to hear an audible navigation signal as you approach it.

The Plots Thicken

When visibility falls to near zero, it is best not to plot a course for a harbor that has a narrow entrance or lots of traffic. Outside of Maine, harbors like this are less common, but east of Casco Bay it’s easy to find mile-wide estuaries leading to harbors rarely visited by most pleasure boats.

Fortunately, traffic is easier to avoid in these days of inexpensive GPS devices. Before GPS, most skippers plotted the same courses to the same buoys, thereby increasing the risk of collision. Today you can create your own waypoints and stay well away from those popular courses and buoys. It may take a little more time, but the pay-off is a safer, less traffic-filled passage.

Courses plotted to the lee side of islands tend to work out well, because the warmth of the land thins the fog and may accelerate the summer sea breeze. Courses that take you well inland are also helpful, as the air here warms up more quickly and disperses fog sooner. The upper reaches of many rivers often provide excellent sailing while those sailing farther downriver are left grumbling in the soup.

Loud and Proud

The best way to avoid collisions in fog is to make noise. Always carry a powerful handheld signaling horn and know how to use it. Even if you don’t always follow the rule about sounding a signal every two minutes while underway in fog (one long blast for power vessels; one long and two short blasts for vessels under sail), you should be prepared to when you know there’s traffic around.

If you hear a boat approaching in fog and determine there is a risk of collision, the appropriate response is five short blasts on a horn. Short blasts are defined as one second each, but I’ve found slightly longer blasts work much better.

Radar, of course, is a very useful collision-avoidance tool, but remember not all vessels will show up on your radar screen. Fiberglass sailboats and small skiffs can be hard to detect, as are kayaks, which are increasingly common in the waters where I sail.

Another useful way to make more noise is to use your VHF radio. Make periodic scurit calls on channel 16 announcing your position, course, speed and intended destination.

Most importantly, when visibility is very poor you should slow down. Maintaining a modest pace is the most prudent approach to fog. That and the other tips outlined here have kept me from banging into anything in the 35 years I’ve cruised the Maine coast.

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