Safety & Seamanship

We know the drill now. If we feature a Mac product, we have to appease the PC crowd, and vice versa. Otherwise, the earth spins off its axis and our inbox starts smoking. So while the iPhone crowd gets their fill with our review of navigation apps (page 24), heres a morsel for readers using Windows Mobile devices. After testing several navigation programs for Windows Mobile handhelds in December 2009, we had the opportunity to evaluate Memory-Maps Weather Radar for Windows Mobile cellphones.

Maritime search and rescue missions prompted by distress alerts from emergency position indicating radio beacons (EPIRBs) have topped 6,000, and that number continues to grow. Although Practical Sailor recommends having a GPS-equipped 406-MHz EPIRB (GPIRB) on board, two means of satellite signaling for help is definitely better than one, and a few hundred dollars invested in a secondary tracker or beacon is worth it. In this article, we examine supplemental emergency signaling and tracking devices, including government-supported systems such as the ACR AquaLink Personal Locator Beacon, and private-network systems such as SAT phones and The Spot Messenger.

Letters to Practical Sailor's April 2010 issue include: MOB drills, tethers, nav lights, cleats, no-buff shines and tankless water heaters.

I need to buy a marine offshore life raft, and I’ve been considering stowage spots. I considered a deck-mounted canister. But I’m concerned that my wife would not be able to deploy the raft safely. The canister-packed rafts are typically too heavy for her to lift, and I seriously doubt she’d be able to control one on a wet, heaving deck in heavy weather. I was all set to store the raft in one of our lazarettes, and then it occurred to me that the raft might be particularly vulnerable to an engine-room fire, because the genset and propulsion engine compartments are located underneath the cockpit sole, inboard of the lazarettes. Both engines are diesel, and I have an automatic fire extinguisher. Nonetheless, the fact that a fire would likely start in one of those engine rooms has me rethinking my idea about stowing the raft in the lazarette. Do you have any information on raft fire resistance?

Unlike aluminum or steel propane tanks, clear composite tanks allow users to see how much fuel remains, a nice feature in an LPG tank.Following our year-long evaluation of Ragasco’s 9-kilogram one-piece blow-molded tank, Practical Sailor tested the American-made Lite Cylinder, a two-piece composite tank. The two tanks have nearly identical dimensions, and may be a challenge to fit in a standard propane locker designed for metal tanks. In fire tests, composite tanks melt rather than “explode” like metal tanks, giving them a slight edge in safety, and the non-metal tanks resist rusting, a common problem of aluminum LPG tanks.

Practical Sailor found that the full brightness that LEDs offer, coupled with a huge energy savings, a wide tolerance to voltage changes, and a very long expected lifespan, make LED a great alternative to incandescent lights for masthead tri-color. The tradeoff is the considerable heft of the price tag. Practical Sailor tested LED tri-color lanterns from Orca Green Marine (OGM), Signal Mate, and Lopolight. We also evaluated LED tricolor bulbs designed to replace those in the popular Aqua Signal Series 40 tri-color light. Those were bulbs from Lunasea, Dr. LED, and LED Shop.

Practical Sailor Technical Editor and in-house safety expert Ralph Naranjo tagged along on some recent man-overboard retrieval trials put on by the U.S. Naval Academys Sailing Master Dan Rugg and the Philadelphia Sailing Club. The lessons learned on those at-sea safety drills can benefit all who call oceans and waterways their playground. The trials showed that no single MOB retrieval method will suit all boats, all situations, or all crews. The wide range of variables that can come into play in a crew-overboard incident cannot be overstated. Factors ranging from crew skill and size to the vessels behavior under different sea state affect the challenges involved in a rescue and define the right maneuver to use. Among the COB techniques tested, the Quick Stop, which requires a quick reaction from the crew to keep the victim close at hand, was deemed best suited for fully crewed vessels moving at slow or moderate speeds. Other maneuvers that the sea trials evaluated included the Figure 8 MOB rescue method, the Fast Return, the Deep Beam Reach, and rescue with a Lifesling. Naranjos report offers a new look at some widely accepted techniques. Practicing these tactics aboard your boat will help you to determine which works best for your boat-be it a heavy-displacement cruiser or feather light race boat-and your crew-be they a team of professionals or your family and friends.

In an effort to find an inexpensive, reliable way to connect a PC (or Mac) to our onboard electronic navigation system, Practical Sailor testers scouted basic NMEA 0183 multiplexers with good track records. We zeroed in on the easy-to-install MiniPlex Lite from Holland-based ShipModul. This multiplexer was one of the first high-speed NMEA 0183 multiplexers capable of handling the data rates required for some of the newer electronics like AIS receivers. With very little effort, the Mini Plex Lite allowed us to network our Dell Latitude D620 laptop, AIS, GPS, and chartplotter, and it handled the data transfer without a glitch. Our chief gripe: This entry-level model uses the laptop for its power source.

During our testing of pocket navigators for the December 2009 issue, we examined other approaches to propagating a GPS signal around the boat and found some viable alternatives. Several aftermarket options can turn smart phones or PDAs into handheld navigation tools by supplying or sharing reliable GPS data. Practical Sailor looked at a Bluetooth-enabled Globalsat BT-338 GPS receiver with the SiRFStarIII chipset and Franson Technology’s GPSGate software for Windows and Windows Mobile, which was designed specifically for the task of sharing GPS data. Testers found both utilities to be good choices for the job, however, we still caution against relying solely on a PC-based navigation network onboard.

Practical Sailor’s roundup of practical boater websites covers all topics related to sailing, boat owning, and boat maintaining. From weather forecasting and navigation sites to boat-owners’ groups and social networking sites, these links to online sailing resources are editors’ and readers’ top picks from the world wide web.