Congratulations to Navionics for winning the DAME Design Award (marine-related software category) with Navionics Mobile. And it turns out there’s going to be more to this product than I first understood. In addition to large portfolios of vector charts to run in iNavX, Navionics will also offer a free viewer and inexpensive small area charts. In fact there’s already a preview of Navionics Viewer in the Apple Apps Store. It includes impressively detailed sample cartography of the area around Genoa, Italy, which is how I took the screen shot above, full size here (but it still takes Google Maps to see the hotel pool I once swam in ;-). Zooming and panning are reasonably quick on my iPod Touch, and I look forward to seeing the finished app. There’s no end to the iPhone effect.
Finessing the MerCruiser Axius joystick is Amanda Marsten, who probably never foresaw this as part of her gig at the PR firm Rushton Gregory. But she brought the perfect blend of boating inexperience and a light touch to the job, and in truth handled the Sea Ray more deftly than some of us old coots who were aboard for the FLIBS demo. Close quarters maneuvering with Axius is truly intuitive, even when you face aft, and switching from regular controls to joystick is as simple as putting the shifts in neutral and grabbing the stick (or vice versa). But this, mind you, was not just the Axius control system Mercury introduced last February, but rather the new Premier version (which so far is pretty invisible online)…
Lowrance’s LMF-400 is one impressive NMEA 2000 gauge, and I should have included it in my N2K instrument round up. On the above “fuel management” screen it’s totaling the flows of the two FloScan FloNets and calculating nm/gal using boat speed, while also showing the tank level % from a Maretron adaptor. You can easily change the data fields or build a custom screen showing from one to four data types—either virtual needle style or numeric—and thus monitor individual engine flows (good for catching mechanical problems), fuel used by trip or season, remaining fuel, and range. You can also choose data sources, set up your engine/tank configuration, and calibrate Lowrance fluid level and gasoline flow sensors with the LMF-400; it’s quite visible in sunny conditions; and the little devil can be had for about $120, only $40 more with a flow sensor. In short, it does everything you could want in fuel management, inexpensively (see way below for more details).
Mad Mariner just polled 400 U.S. boat owners about how they’re handling goosed up fuel prices, and the results are depressing. Though not terribly surprising, which is why I’ve gotten so keen on fuel management (part four is here, and you can work back). Actually it was years ago that I first saw the benefits of combining a simple gasoline flow meter with a GPS and software able to do calculations like miles per gallon, using Navman gear with the 250hp Volvo I/O on Ralph (still for sale, make an offer!). I could see the most economical spots in the boat’s power curve, and I could see them change with weight, sea state and other factors. I’m not sure I ever got it perfectly calibrated, so the numbers shown above may be inaccurate, but in terms of relative nm/g—and sweet spots—that’s not critical. And of course the subtleties are at least twice as important wallet-wise as they were in 2002, when I took the picture above.
Remember Maretron’s N2KView? I tried the initial version last fall, and later wrote a column about the whole concept of packetizing NMEA 2000 data. Recently I’ve been testing Version 2.0 and can tell you that it’s faster, prettier, and more configurable—better in every way. Perhaps more important, though, is Maretron’s recent decision to position the original $2,995 product—which can or will eventually control switches, take action on alarms, handle cameras, etc.—as the Platinum version, and offer a Standard view-the-data-anywhere version for $995 (as explained in this PDF).
Demonstrated at the Miami Boat Show, and scheduled to ship this Fall, Yanmar’s Smart Check looks like a gem of an engine monitoring system. You will need to have one or more Yanmar diesels with electronic interfaces and a NMEA 2000 connection to a Raymarine E-120, plus about $800 for the software (loaded into the E from a CF card), but, wow, you even get detailed alarms with trouble-shooting suggestions, and a maintenance log with reminders. And of course the gauges are complete and handsome, as you can see in this press release. But I want to focus on Smart Check’s fuel management features, which are the most sophisticated I’ve seen so far.
Consider this test a work in progress! (Bigger photo here.) Those are two FloNet N2K interface boxes that FloScan loaned me with built-in simulation of something like a big sportfishing boat blasting along on a plane. I can modify the simulated flow value somewhat using the calibration controls built into the box, which also has an “instance” switch so that the left one (instance 0) is set up as as the port engine and the right one (instance 1) represents the starboard engine. As noted on first sight, FloScan has designed this adaptor so that a special display is not needed to manage all its calibration and flow meter diagnostics; all you need is a display that understands what to do with a fuel flow message(s). Well, easier said than done, particularly when you throw twin flow values at those displays first, and read the manuals later!
My first screen shots of Slancha’s Garmin 18” HD radar drew a lot of interest and I look forward to more experimenting with it later this week, but the real subject of the shot above, and this entry, is the fuel management information shown on the bottom bar. The boat’s owner, Peter Smith, installed a GFS 10 fuel sensor on the system’s NMEA 2000 network, and he’s tickled with the results, particularly the miles-per-gallon info, which has shown him where the sweet spots are on his power curve. That “Economy” number—a calculation based on flow versus Speed over Ground (from GPS) or Speed through Water (your choice)—may change with the boat’s load, bottom growth, sea conditions, or engine tune, but he’ll be able to see it happening.
FloScan has been measuring fuel flow for over 30 years, so I’d guess they have a darn good idea how to do it. It’s refreshing that their new NMEA 2000 Diesel Monitoring System focuses on what they know well and let’s the resulting data go wherever you want. The flow sensors and those “hubs” seen above, bigger here, are all you need. Yes, you can buy FloScan’s round gauge upper right, but you don’t need to. All data is sent in standard N2K messages, and the little calibration needed is done right in those boxes. The rest of this NMEA Conference booth had Simrad, Lowrance, and Raymarine displays all showing the gallons per hour, remaining fuel, etc. Note that FloScan’s site says that, “Furuno is currently developing NMEA 2000 products which will interface with our system.” But we knew that, right, and will know more when NavNet #d debuts (hey, I might live blog it, if there’s WiFi there). Note, too, how the port engine is “Instance 0” in the N2K system and the starboard engine is set as “Instance 1”. You can set that with a switch in the hub. But who the heck decided to start instances at zero instead of one. Wouldn’t it be better if, say, GPS #1 was instance 1, GPS #2 instance 2, etc.?
I've been testing this PulseTech Xtreme Marine 12v “five-stage maintenance” charger for a month or so, and am impressed. What with Annie G's two batteries—one for the electric trolling motor, another for backup and electronics—plus some old batteries I’m trying to keep alive until someone buys Ralph, I’ve had plenty of material to work with. I really like how the Xtreme first tests a battery and then tells me with simple to understand LEDs what it’s up to as it goes through its multi step process. And while it’s impossible for me to really see the claimed desulphation process in action, the batteries certainly seemed very well charged. (Plus PulseTech has some scientific studies, using x-ray, that seem to back its claims). I was even able to use it to bring back a dead flat battery which someone around here had allowed to go completely dry; I did have to start the charge with a conventional “dumb” charger but the Xtreme (which first found it “bad”) took it from there and seemed to really perk it up. Charging a really low battery does take time, though, as the Xtreme only puts out 2.5 amps in bulk mode (5 amps claimed effective); hence the “maintenance” caveat. But you can just leave the charger attached to a battery indefinitely as it will stop charging and go into float/pulse mode when a battery is topped off. There are other pulse chargers and battery conditioners out there (a good explanation of charging, pulsing, and desulphation here), but Xtreme seems like a winner.
TDI inverters & converters, modular & hot swappable
Aug 17, 2007
This week I spent some more time aboard the fabulous Electra, back at Lyman Morse after a month long trial/pleasure cruise to New York. I’ve come to realize that her owner, George Wallner, has a deep understanding of electricity that’s similar to the way some fine chefs I’ve met know the science and mechanics of their basic materials like, say, butter. Wallner is not only a talented electrical engineer but also a guy who’s run a company that manufactured mission critical electronics—credit card swiping systems—and a yachtsman who’s been seriously cruising a boat similar to Electra for ten years. Don't you want to see how he’s equipped his new ride?
Though CruzPro deserves more attention than it gets, as Panbo has noted before, I managed to let this neat new MaxVu110 multifunction display slip ever since METS. Too many electronics subjects, too little time! The Max110 is a monster, able to display up to five pages of data (from 16 stored configurations) in the three numeric fields and two bar graphs seen above. It has numerous possible inputs, knows just about every NMEA 0183 sentence written, and “contains built-in calibration curves for all popular engine temperature, oil pressure, fuel and tank level senders manufactured by VDO, Teleflex, Faria and Stuart-Warner”, including both American and European resistance ranges. And any field can be high/low alarmed. Finally, it comes with a Windows program that seems to make setting up all this instrumentation power easy. I can’t find the Max110 on CruzPro’s Web site, but it’s well presented in the online PDF catalog. I’ve got to think that this display could be useful to a geekish boater or imaginative installer, and hope we’ll get some reports about how it’s used.
IBEX, a great show I’m missing (it’s OK), announced its innovation awards today. One winner is Paneltronics’ PowerSign, which is:
“a multiplexed system for intelligent power distribution and management for any vessel using DC loads — meaning you can control and monitor all onboard electrical systems from one location, even remotely. The system comprises four main units: switches; power distribution units; graphical user interfaces; and communications cables.”
Sounds good but will it also handle AC eventually, or offer a NMEA 2000 interface, like OctoPlex? And how does it compare to DNA’s digital switching system, which just got a NMEA 2000 gateway. No answers yet at Paneltronics’ Web site.
Another interesting winner is Torqeedo’s folding electric outboard, which looks like it might be terrific for a cruising boat’s tender, though pricey I fear (made in Germany in small quantities). Meanwhile, here are the nominees for the METS DAME award this year; I look forward to seeing all the products, and who wins.
This Friday’s gizmo is the big kahuna of all the portable power packs that can typically jump start a car (or boat), run 12v gadgets, inflate a tire, and more. Xantrex’s top-of-the-line 400R also includes a 400 watt inverter, an emergency light, and an AM/FM radio with alarm! Inside is a replaceable 20 amp hour AGM battery which seems to have guts (and contributes to a total unit weight of nearly 30 pounds). In my experience, the 400R powered quite a bit of reciprocal sanding, and then smartly alarmed and eventually cut out when the battery went too low, or if I bore down too hard. That’s a digital watt meter showing in the picture (bigger here); when the inverter is turned off, it can show percentage of charge. This thing is obviously designed for emergency backup during hurricanes and the like, but I found it darn useful around my little back field boat yard, and it might have a place on some cruising boats. It’s fairly well made, certainly better than other jump start packs I’ve had. Xantrex’s page on the 400R is here, and a fellow named Jack has written a lengthy and careful review here (he’s right that it takes a long time to recharge, but I thought the radio performed OK, at least a low volume).
One of the things I enjoy about the marine industry is how an inventive boater—there are lots, particularly sailors for some reason—can still get a product to market. You’re looking at the world premier of Navlight Indicators…Larry Schaffer sitting in a rented booth at Strictly Sail Miami, ready to explain his very clever navigation light accessories. He has since put up an informative Web site, so I’ll just note that he’s created little LED’s that will show you just how your running/anchor lights are switched, plus a current sensor system that will make them blink if a light fails. You can get a dedicated panel that showcases the idea, or parts so you can upgrade an existing panel. Good job, Larry!
Navagear found a solid state bilge pump switch that can discriminate between fuel/oil and water, so presumably you will not pump the bad stuff overboard. I’m just a wee bit skeptical about how well this works in the real world. What if there is just a little oil swirling around your bilge; might the switch shut down when you didn’t really want it to? A while back I tested SensaSwitch (above), another solid state “float” switch that I liked a lot. It does not claim to “discriminate” against hydrocarbons but one reader wrote in claiming that oil films made it stick on or off, which of course is what no-moving-part switches are supposed to avoid (my test didn’t include oil!). The company tried to investigate the claim but the guy said he’d thrown the switch away, and his email went dead, so this report is very much hearsay. Does anyone out there have either SensaSwitch or Water Smart Switch installed in their boat?
Me matey Charlie Doane just returned from skippering a New England to Caribbean delivery that included its rightful share of electronics drama. One night, sailing to windward and heeled down hard, he heard the “instruments down!” call from the cockpit. His first reaction — after yelling back “cope!” — was to nose around the power supply system, a whiff of sizzling circuitry leading the way. Low and behold, down in a low locker was a 24v-12v step-down transformer immersed in a puddle of saltwater that had apparently been collecting from a slight deck/hull joint leak that was getting a prolonged dunking. Electronics breakdowns, and other problems, tend to make deliveries challenging, and it’s telling that this was a seasoned 48’ Swan, the Mercedes of production boats. She’s been in service eight years, but apparently the little leak and the low gizmo had never interacted before. Another interesting aspect to this tale is that Charlie's crew were clients of Offshore Passage Opportunities, delivering the boat to learn offshore seamanship by doing. Not only did they sail on to Bermuda without instruments, but there helped Charlie locate a functional stepper installed elsewhere on the boat and swap it out. There were more invaluable lessons, including some fuel management theater, and I'm hoping Charlie will write up the whole trip for Sail.
Isn’t it neat that a lot of boaters gleefully invent stuff to improve their vessels? A fairly extreme example is one Roger Jones who put together his own elaborate boat monitoring system, wrote the necessary software too, and then created a site where anyone can download this software for free and read Roger’s well written instructions about how to assemble the hardware from off-the-shelf parts. Roger’s screen shots indicate that Version 2, currently in “beta”, can not only mind batteries, AC power, pumps, lights, and NMEA 0183 nav data, but can also display weather buoy data (from where I don’t know) and video. Nice work, Roger! (By the way, I learned about this because Roger posted a message on our Electronics Forum at PMY).
Wouldn't it be great to watch the sun going down while listening to a mosquito powered entertainment set in your boat's cockpit...;-)?
"We know what you're thinking. A robot that totes around human sewage, digesting living beings for energy? What, you�re not inexorably excited about this? The EcoBot II (ah, what a benign, nonthreatening name) is fed flies into 12 sewage-based bacterial fuel cells, which break them down, digest them, and use the electrons released as current."
Came across an article over at SailNet on 'standard' and 'smart' alternators. Might be of interest to you if you still have your regular automotive alternator installed...
"How does the performance of a standard regulator compare to that of a three-stage regulator? Not very well if the regulator is an automotive unit with a cut-out voltage around 13.8 volts. A 13.8-volt regulator may be satisfactory on a powerboat, but it does a lousy job of charging sailboat batteries. Raising the battery charge level from 50 percent to 90 percent with a 13.8-volt charging source takes more than five hours. Few of us can stand to run the engine at anchor for that long, so unless there is an alternative charging source, the batteries get fully charged only when the boat is under power for a long period. The rest of the time the batteries remain undercharged. The inevitable result is a condition known as sulfation, which is the number one cause of battery death."
AC eventually, or offer a NMEA 2000 interface, like 
Me matey 
Isn’t it neat that a lot of boaters gleefully invent stuff to improve their vessels? A fairly extreme example is one Roger Jones who put together his own elaborate boat monitoring system, wrote the necessary software too, and then created a 
Came across an