Marine Electronics

First sailed in 1978, the Singlehanded TransPac (SHTP) crosses 2,120 miles of Pacific Ocean from San Francisco Bay, Calif., to Hanalei Bay, Kauai. Practical Sailor contributor and SHTP competitor Skip Allan took time out from his race preparations onboard Wildflower—his Thomas Wylie-designed 27.5-foot sloop/cutter—to open his notes on solo sailing. Last month, the veteran offshore racer and singlehanded cruiser discussed his gear, sail inventory, storm tactics, and his approach to provisioning. This month, Allan focuses on the electronics, safety gear, and routing tactics he employs when racing alone. Allan’s onboard systems include two deep-cycle wet-cell batteries that total 165 amp hours, two solar panels, and a 35-amp alternator on Wildflower’s10-horsepower Yanmar single-cylinder diesel. He has a fixed and handheld VHF, an Icom SSB radio, a Pactor modem for weather charts and weather faxes, and Winlink email. Other electronics include handheld GPS, LED lighting, and a small portable radio.

First sailed in 1978, the Singlehanded TransPac (SHTP) crosses 2,120 miles of Pacific Ocean from San Francisco Bay, Calif., to Hanalei Bay, Kauai. Practical Sailor contributor and SHTP competitor Skip Allan took time out from his race preparations onboard Wildflower—his Thomas Wylie-designed 27.5-foot sloop/cutter—to open his notes on solo sailing. Last month, the veteran offshore racer and singlehanded cruiser discussed his gear, sail inventory, storm tactics, and his approach to provisioning. This month, Allan focuses on the electronics, safety gear, and routing tactics he employs when racing alone. Allan’s onboard systems include two deep-cycle wet-cell batteries that total 165 amp hours, two solar panels, and a 35-amp alternator on Wildflower’s10-horsepower Yanmar single-cylinder diesel. He has a fixed and handheld VHF, an Icom SSB radio, a Pactor modem for weather charts and weather faxes, and Winlink email. Other electronics include handheld GPS, LED lighting, and a small portable radio.

A thermal-imaging camera installed on your boat can significantly enhance safety during nighttime operations by clearly letting you see what is ahead and around your boat, even on the darkest or foggiest of nights. Practical Sailors review of Flir Systems Inc.s Navigator II, a thermal-imaging camera that can be mounted on a mast, finds that this kind of camera can aid navigation, man overboard recovery, and security. The equipment comes with a lofty price tag but for some, it will be worth the investment.

First contested in 1978, the Singlehanded TransPac (SHTP) offshore race crosses 2,120 miles of Pacific Ocean from San Francisco Bay to Hanalei Bay, Kauai. Though the singlehanded race has been dubbed a bug light for weirdos, world-class navigators and sailors often throw their lot in with the pack. Longtime singlehanded racer and cruiser Skip Allan took time out from his TransPac preparations to outline the equipment he keeps onboard Wildflower, his 27.5-foot Thomas Wylie-designed sloop/cutter. From his Sail-O-Mat windvane to boom vangs to tiller pilots, Allan discusses a range of gear helpful to all singlehanded sailors and small boat sailors. He outlines his sail inventory and storm tactics, along with his approach to provisioning and eating at sea. A second installment of the Singlehanded Sailors Notebook will take a look at onboard electronics and safety gear for the solo sailor.

When cruising off the beaten path, youre likely to come across harbors, channels, and other waterways that arent well charted. In these areas, a portable depth sounder becomes a necessary tool for safe navigation and anchoring. PS testers and well-known cruiser-authors Evans Starzinger and Beth Leonard recently had the opportunity to test and compare two such devices while voyaging the remote channels of Chile, where they often needed to sound an uncharted anchorage from the dinghy. The two products they tested were the Norcross HawkEye Portable Sonar System (DF2200PX) and Speedtech Instruments handheld depth sounder. Both are designed for use aboard a dinghy, through a fiberglass or wood hull, or through ice. The multi-purpose Norcross can read depths from 2.5 to 200 feet, and also has a sensor that measures the temperature of the water, the air, or any object the sensor is placed against. It can also be used as a fishfinder. A fish icon appears on the screen with the depth when the sonar detects something other than the bottom in its field. The Hawkeye floats and is waterproof to 200 feet.

On many boats, mounting external sensors on the inside of a holding tank is too much of a hassle or is not an option because of where the tank is mounted. If the top of the tank is accessible, then it may be possible to install an internally mounted liquid-level sensor in the tank. Practical Sailor tested seven pre-packaged kits containing internally mounted tank-level sensors and remote monitor panels. Internally mounted tank-level sensors that used some form of float sensor were the SeaLand TankWatch1, Dometic DTM4, Groco TLM Series, and Wema SHS-8. Two test products used air pressure for reading: Fireboy-Xintex PTS and Hart Systems Tank Tender. And one productthe BEP Marines TS1 senderused ultrasonic technology to measure tank levels. All should work on standard composite, polyethylene, or aluminum tanks.

Every boat owner sooner or later becomes familiar with the degrading effects of the marine environment. Whether theyre barnacles along the waterline, metal fittings rusting on deck, or galvanic corrosion beneath the water, ultimately, we all learn to contend with such realities. But one damaging element in the marine environment often overlooked is the destructive power of bird feces. Guano, bird poop, white death-whatever you call it-is a strong corrosive. Bird feces naturally contain some of the most acidic substances: ammonia, uric, phosphoric, oxalic, and carbonic acids, as well as salt. Fecal matter from birds can cause crazing in Lexan hatches, accelerate the degradation of stitching in awnings, and break down the protective properties of wax. And yes, its also unsightly and unhealthy. The good news is that there are numerous devices on the market intended to dissuade birds from roosting on and fouling your decks or spars. This group comprises a broad range of sizes and styles from the ubiquitous plastic owl to the antenna-like, spider-style Daddy Long Legs.

In conjunction with paper charts, most sailors these days are navigating via electronic charts displayed on big-screen plotters. The three key manufacturers in the digital chart game are Garmin (Blue Charts), Navionics (Navionics Platinum and Navionics Gold), and Jeppesen Marine (C-Map). The world beneath the waters surface is an ever-changing one, and to keep out of harms way, a navigator must have the most up-to-date charts available. Keeping on track with LNMs, or Local Notice to Mariners, is a good start, but its not as comprehensive as downloading a new, updated hard-card chart from Garmin, Jeppesen, or Navionics. Practical Sailor compares their prices and methods for updating their electronic navigation charts. We also review the procedures you can use to notify chart suppliers of errors on the charts.

Charts and GPS help sailors stay out of harms way. But for navigation in those more remote destinations that may not be well-charted, relatively small and affordable forward-looking sonar is added security. Longtime cruising sailors Andy OGrady and Ulla Norlander sea-trialed Interphases new SE-200 Sonar Engine aboard their 42-foot sailboat Balaena. They used the sounding equipment primarily in Brazils muddy rias and shallow rivers. After six months of forward-looking sonar tests, OGrady and Norlander found that getting the most out of the device had a big learning curve. Sailors need to master the art of reading the sonar, adjusting the equipment, and determining false echoes. Common problems testers had with the sonar included interference and false echoes, the inability to set an alarm area on the radar screen, and a lack of space aboard to install the sonar where it wont be subject to interference. In spite of the SE-200s limitations, testers found it to be integral to their navigation. They use it regularly and reported that theyd feel lost without it.

Im not sure why this months Ocean Tested review of the new forward-looking sonar from Interphase Technologies, the SE-200 (page 14), gives me the creeps, but it does. The technology, which promises a digital representation of the seafloor ahead, is impressive, but I can't help but feel like were opening Pandoras box. Imagine that the SE-200 always worked as its promotional literature suggests, giving us adequate time to react to underwater obstacles ahead. Should the technology become affordable and widely accepted, groundings may become so rare that the worlds bays and estuaries will be populated by sailors whove never been humbled by the sudden heel of their boat as it wallows onto a mudflat. Part of what distinguishes sailors is that our affliction-this incurable addiction to wind and water-requires that we confront our own limitations. Each time we clear the bell buoy, we are embarking on an act of submission, surrendering ourselves and our good little ship to whatever the ocean might deliver.