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THUNDERSTORM SAFETY

Posted On: July 12, 2022



 Stay Safe in a Thunderstorm

We all learn in grade school that lightning seeks the highest point, and on the water that’s the top of the boat — typically a mast, antenna, Bimini top, fishing rod in a vertical rod holder or even the tallest person in an open boat. If possible, find a protected area out of the wind and drop anchor. If the boat has an enclosed cabin, people should be directed to go inside and stay well away from metal objects, electrical outlets and appliances (it’s a good idea to don life jackets too). Side flashes can jump from metal objects to other objects — even bodies — as they seek a path to water.

Under no circumstances should the VHF radio be used during an electrical storm unless it’s an emergency (handhelds are OK). Also, be careful not to grab two metal objects, like a metal steering wheel and metal railing — that can be a deadly spot to be if there’s a strike. Some boaters opt to steer with a wooden spoon and keep their other hand in a pocket if forced to man the helm during a storm, while others like to wear rubber gloves for insulation.

Protection
A conventional lightning-protection system consists of an air terminal (lightning rod) above the boat connected to a thick wire run down to an underwater metal ground plate attached to the hull — large metal objects like tanks, engines and rails are also connected. New studies suggest multiple terminals and multiple ground paths work better.

An open boat like a runabout is the most dangerous to human life during lightning storms, since you are the highest point and most likely to get hit if the boat is struck. If shore is out of reach, the advice is to drop anchor, remove all metal jewelry, put on life jackets and get low in the center of the boat. Definitely stay out of the water and stow the fishing rods.

If all goes well, the storm will blow past or rain itself out in 20 to 30 minutes. It’s best to wait at least 30 minutes until after the last clap of thunder to resume activities.

 

There’s a Zap For That
A smartphone ­coupled with real-time National ­Oceanic and ­Atmospheric ­Administration (NOAA) lightning tracking ­information can make a powerful tool for ­avoiding storms. Some apps will even notify you if there is a strike near any of your ­designated areas. Do an Internet search for ­“lightning app NOAA” — there are a number of iPhone and Android apps available. A little early warning could give you just the time you need to make it back to shore and seek shelter.

Hit!
Knowing what to do in a storm and having the best lightning-protection system installed on the boat is by no means a guarantee that lightning won’t strike.

The immediate checklist for a direct hit is very short:

  1. Check for unconscious or injured persons first. If they’re moving and breathing, they’ll likely be OK. Immediately begin CPR on unconscious victims if a pulse and/or breathing is absent — there’s no danger of being shocked by someone just struck by lightning.
  2. In the meantime, have someone check the bilges for water. It’s rare, but lightning can blow out a transducer or through-hull — or even just blow a hole in the boat. Plug the hole, get the bilge pumps running, work the bail bucket — whatever it takes to stay afloat. An emergency call on the VHF is warranted if the situation is dire. If the radio is toast, break out the flare kit.


Lightning seeks the highest point, and on the water that's the top of the boat.

If there are no injuries and no holes or major leaks below, just continue to wait it out. Once the danger has passed, check the operation of the engine and all electronics. Even a near strike can fry electronics and an engine’s electronic control unit, cutting off navigation, communication and even propulsion. Some boaters stash charged handheld VHF and GPS units and a spare engine ECU in the microwave or a tin box for this very reason. These makeshift Faraday cages have saved equipment.

Obvious damage will need to be assessed and set right. Even those lucky enough to come away completely unscathed after lighting storms, with no apparent damage should have a professional survey done just to be sure. Minor damage to through-hulls can result in slow leaks, and all manner of electrical wackiness can emerge — sometimes much later. It’s best to catch these issues right away and get that information to the insurance folks for coverage.

 

Is Just a Ground Plate Enough?
An immersed 1-square-foot ground plate with hard edges creates a low-resistance path for lightning current to flow through (instead of through the boat or its crew!). But expert Dr. Ewen Thomson) believes multiple rods and near-water electrodes provide better protection.

Take it from a luxury trawler owner who sustained more than $1 million in damage from a strike: “Boat insurance turns out to be the best investment we have made in the past 10 years!” he said. “We will never again grumble about writing a check for an insurance premium.”

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ASK THE EXPERTS

Posted On: July 05, 2022

Q: Marine surveys are a waste of money for smaller boats, aren't they?

A: A professional "condition and valuation" marine survey (typically costing around $15 to $20 per foot) can often pay for itself. It provides a list of deficiencies as well as needed repairs, focusing on safety. Deficiencies can be used to renegotiate the sales price or scrap the deal altogether if the repairs are too expensive or complicated. Without a survey, you may overpay or be faced with unexpected and expensive repair bills. For most people, a boat worth more than a couple thousand dollars is a candidate for a marine survey.

Q: Cheaper auto-engine parts work just as well on a boat, right?

A: Not so fast! Substituting certain automobile parts in your boat's engine can be dangerous. Inboard and stern drive engines are housed in an enclosed space, unlike car engines, which are exposed to air. A small spark can set off gas fumes that build up in a boat's bilge. Boat-engine parts, such as starters and alternators, are designed to be spark-proof or "ignition protected," while automotive parts aren't.

Q: My boat has a capacity plate. Does that mean the U.S. Coast Guard certified that my boat is safe?

A: Neither the U.S. Coast Guard nor any other federal agency certifies boats. Only a few federal laws govern boat-building, including flotation requirements for powerboats under 20 feet, passenger- and weight-capacity labels, and fuel-system safety. Manufacturers self-certify that their boats meet these legal standards. The Coast Guard does, however, have a factory-visit program that audits boat builders periodically for spot checks and tests a few dozen boats for flotation compliance every year.

Q: My boat has flotation, so it can't sink, right?

A: Only mono-hull powerboats 20-feet long and smaller and built after 1972 are required to have integral flotation designed to keep it from sinking, even when swamped. The U.S. Coast Guard requires these boats to be able to remain afloat and, in most cases, upright when filled with water. Sailboats aren't required to have flotation, and inboard/outboard boats have less-stringent requirements than outboard boats. Some manufacturers, such as Grady-White, install flotation in all of their boats, regardless of size.

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DON'T GET HOSED

Posted On: June 28, 2022

There is no such thing as an all-purpose hose on a boat. No single hose type can withstand engine exhaust, bring freshwater to the galley, safely transport gasoline to the carburetor, drain the cockpit, and flush the head. Using the wrong hose can cause problems that range from an inconvenient mess to a burning boat. This handy run-down will help you identify one type of hose from another and assist in choosing the right hose for the job at hand. We'll start with a visual guide to common marine hoses, then go into more detail about each type.

1. Exhaust hose. Able to withstand temperatures to around 250 F, an exhaust hose is often reinforced with wire, which may be stainless, or other special reinforcement. Other, more expensive silicone hoses are capable of sustaining much higher temperatures.

2. Hot and cold PEX potable water pipe. Many modern boats use PEX tubing for hot and cold plumbing. PEX is available in three distinct grades: A, B, and C. Although all are perfectly acceptable for potable water, Grade A is the most flexible and easiest to run in the tight confines of a boat. Fittings are easy to connect to the pipe, although you may need special tools. PEX is not the only option for potable water, however (see 6).

3. Sanitation hose. Often white, with a smooth bore to prevent trapping waste that could lead to odors, sanitation hose has an expected lifespan of approximately 10 years.

4. Corrugated bilge pump hose. This cheap hose is often supplied with bilge pumps. While easy to run, cut, and bend, its ridged internal structure restricts flow, making it a poor choice.

5. Smooth-bore bilge pump hose. Although four times the price of corrugated types, smooth-bore bilge pump hose offers up to 30 percent greater efficiency.

6. Potable water hose. Potable water hose comes in both reinforced and non-reinforced types. They're easy to tell apart as the reinforced hose will have strong synthetic cord strands visible. This one is clear but opaque is generally a better choice for potable water because there is less chance of algae growing inside.

7. Fuel hose. Fuel hose must be marked as such and will be stamped A1, A2, B1, or B2. Older hoses are incompatible with fuel containing ethanol, so if yours is older than about 10 years, it's most likely due for replacement anyway.

8. Thru-hull hose. For any connections to thru-hulls, reinforced hose is the only way to go. A cheap hose may fail and sink your boat.

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DON'T WAVE

Posted On: June 22, 2022

WAVE BASICS

No matter what boat — power or sail — you frequent, you have to be prepared to take on waves.

The first and best tactic is to stay out of large waves, with "large" being relative to the boat's size, shape, power, ballast, and structure. Tactics to avoid large waves include staying in the lee of a windward shore for as long as possible, traveling with wind and current running together, timing the entrance and exit to inlets and rivers so that the current is running with the wind and waves, waiting until slack tide before navigating strong inlets or rivers, or simply staying in port until conditions improve.

Second, don't take waves on the beam. If possible take them on the bow, or it may sometimes be better to take them directly astern or at an angle to the stern rather than the beam. Usually, when heading into waves, it's better to meet them at an angle off the bow to minimize pounding, hobby horsing, and burying the bow. If taking waves astern, it's extremely important to avoid losing directional control as the wave overtakes you. This may require a high level of seamanship skills. If you must change course, watch the waves carefully; time the move when you see a group of smaller waves or a long trough that you can turn in before the next wave comes.

When heading into waves, try to take them at an angle off the bow to minimize pounding.

Third, don't get caught in breaking waves. Breaking waves can occur when the wind is opposing a strong current, when waves are passing over a shallow bar, when they are ricocheting off a shore or rocks, when they reach a height too tall to sustain themselves and when they are leaving deep water and meeting shallow ground. Do everything you can to avoid areas where breaking waves might form.

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MARINE TERMINOLOGY

Posted On: June 14, 2022


Marine terminology may sound like old, archaic jargon to some, but there are good reasons why it's important to use the right words aboard a boat.

 Say What?

Let's start with the most important four terms.

The front of a boat is called the "bow," and the back is the "stern."

"Starboard" refers to what is the right side of the boat if you're facing the bow; "port" refers to what is the left side if you're facing the bow. (To remember this, note that "port" and "left" each have four letters.)

So why don't we just say front, back, left, and right?

The answer is that the starboard side is ALWAYS the starboard side, no matter which way you, or anyone else, is facing on board. This is important. Imagine that you're on a boat and the captain asks you to quickly put fenders over the right side. If you were facing one another, would that be your right or his? Or imagine it's getting dark, or heavy weather is upon you, and you can't see which way people are facing on the boat. Saying "It's to your left!" or "Look to the right!" would make no sense to anyone and would create confusion that could threaten the crew and boat. If someone yells, "Man overboard! Port side!" clear directions and the use of accurate terms could mean the difference between locating, or losing sight of, a victim.

"Gunwale" (pronounced GUNN-ell) is the edge of the boat where the hull meets the deck; the name is derived from the lip at the edge of the deck that at one time prevented cannons from sliding into the sea as the ship rolled. The toilet on a boat is called the "head," which gets its name from its traditional location in the head, or forepart, of the ship. Cabins and other compartments within the boat are divided from each other by "bulkheads" (walls), which are vertical partitions between the cabin "sole" (floor) and the underside of the deck that provide structural stability to the boat's design.

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WRAP IT UP

Posted On: June 07, 2022

Get a rope or even some fishing line wrapped around the prop and it can be more than just a little aggravating; it can land you in big trouble and calling for a tow.

The majority of ropes and lines are made from synthetic fibers, and while these may be great at tying things up, like your boat to the dock, they can be a real headache if they get wrapped around the prop.

A moment's lack of concentration and fishing line can get wrapped around an outboard's propeller, where it will swiftly work between the gear housing, damaging critical oil seals and melting into a solid lump that will require considerable time and effort with a sharp knife to remove.

It's bad enough on an outboard, but wrapping a rope around the shaft of an inboard-powered boat may require an expensive haulout to get things sorted. Be aware of lines on your boat that may be trailing in the water, just waiting for a spinning prop.

And watch the water ahead for floating line as well as other problems.

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ARE BIRDS DRIVING YOU BATTY?

Posted On: May 31, 2022

Turns out an extended number of the bird family are more than happy to take a perch, or hover over your boat as though it had a flashing neon restroom sign on it.

When it comes to outwitting them, the birdbrain tends to belong to the humans.

The results, like the birds, were large and varied.

Unfortunately what seemed to work great for one boater had little effect for another, but clearly birds were a big problem.

West Marine sells 13 different items ranging from tape that starts at $5, to bird-repelling spikes ($20+), to a multi-speaker system that emits prerecorded distress calls of geese and runs on a loop every 10 minutes, for $150.

Here are some do-it-yourself ideas:

  • Stop feeding the birds. It might seem obvious but when you throw seagulls or other birds bread near your boat, they'll keep coming back.
  • Plastic owls work great for some, but problems include the owl blowing away or the birds getting used to it and coming back. One reader wrote that hanging an owl from the spreader, so it moved slightly, made it more effective.
  • Cormorants tend to like being high up (sorry, sail boaters) so one reader found covering the top of the mast with tacks stuck through sail repair tape did the trick. Before you say that's cruel, our reader pointed out it was no different from a thorny branch.
  • Stringing monofilament line on favorite boat perches has worked well for many. Just don't tangle yourself up in it, and don't let it fall overboard. Recycle if you can, and otherwise, dispose of it in covered receptacles.
  • Pinwheels, multicolored flags, and shiny string or ribbon festooned around the boat is another good tip to try.
  • Large wind-driven "rotors" work well, as do bird "spiders." They're easy to put on the hardtop, bow, or back deck, and easy to stow when it's time to use the boat.
  • A large feather duster (preferably ostrich) stuck in a box on the deck allegedly worked for one reader.
  • Got trouble with birds of the webbed feet variety? Hot sauce diluted in water on the final wash down where your unwanted guests like to walk is said to keep them off the boat. No word on whether it'll repel the visitors you want onboard, too.
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BEST DEVICES FOR SIGNALLING DISTRESS

Posted On: May 24, 2022


A boat on the ocean is a small, hard-to-see target in good conditions, and even with all the technological advances in EPIRBs and communications technology that interface GPS information with the VHF radio, nothing can help rescuers get a visual fix on a boat in distress better than a flare or other visual signaling device. The U.S. Coast Guard requires you to carry the proper visual distress signals on board, and it's important to know how to use the different types in an emergency.

Aerial signals: Aerial signals are used to alert all the boats in the area that you're in trouble. They're fired from a variety of self-contained launchers or specifically designed pistols, and can reach an altitude of 450 to 1,000 feet. The combination of bright light and high altitude makes these flares highly visible from a long way off, but most have a relatively short burn time. The U.S. Coast Guard recommends firing two aerial signals-one immediately after the first has gone out-so that in an emergency, rescuers can confirm the sighting and/or the direction of the signal.

Handheld signals Once you've alerted boats in your area that you're in distress and have given rescuers a general idea of your location with aerial signals (and, often, radio or EPIRB contact as well), a handheld signal emits a bright light that will help your rescuers to zero in on your position. In an emergency, your rescuers have seen your aerial signals, confirmed your position on the radio, and use the light from a handheld to steer directly to you.

Smoke signals: Smoke signals are somewhat similar to handhelds in that they are designed to help pinpoint the location of a vessel in distress; they do so by emitting a thick, colored smoke rather than light. They're obviously of no use in the dark, but in daylight, a big plume of colored smoke is often more visible than the bright but relatively small light emitted by a handheld flare. And most smoke flares will float and work on the water.

All pyrotechnic signaling devices must be stored in a cool, dry place, and most are available with a tough, plastic, waterproof storage case. Make sure you keep the signaling kit in an easily accessible location on your boat. And remember: It's illegal to fire a distress signal in a non-distress situation.

 

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