If you read my entry "Seasickness," you know that my last sail had its ups and downs. That's putting it midly. I became extremely sick. The Coast Guard rescued me from the boat I was on, and raced to me to shore to a waiting ambulance. I spent about 48 hours in the hospital, and my doctor and nurse practitioner are still following me closely for lingering effects.
The whole experience -- when I wasn't hanging my head over the side of the boat, that is -- was an interesting display regarding the debate between chart plotters and older methods of navigation.
The skipper of the boat I was on, Samantha Ring, is an unapologetic geek when it comes to navigation skills. We recently found out that our late friend Al Davis often used her as an example of one of the best students of celestial navigation he had ever had. Now, Samantha is young in years compared to me. She hasn't yet had the opportunity to do more than weekend hops on her boat. She teaches during the year, and anyone who has taught knows that this does not necessarily mean that your weekends are free. During the summer where she lives, while it is technically possible to sail, the winds are so light that it can be hard to travel any distance. In addition, the risk of afternoon storms combined with the dangers of coastal sailing in a storm off west Florida (lots of shallow water) mean that you go out early and come in early. That also limits the distance you can cover.
So the only reason Samantha had to learn celestial navigation was curiosity. This is a trait she holds in abundance, however. She has also learned extensively about coastal navigation.
In spite of this, I have been urging her to embrace the idea of adding a chart plotter to her set of tools and skills. She has actually been one of the people who believes that the cognitive skills of navigation are superior to electronic support, and after my most recent day on the water it would be hard to disagree with her.
Nevertheless, I talked her into having a chart plotter cable installed on her boat so she could do a test trial with my chart plotter and see if she might find it a useful addition. She was skeptical, but also is making a big leap shortly in the distance she's sailing, so she went along with it.
Unfortunately the installer connected it to dead wires and did not have time to correct this mistake before we left. But my goal was to show her that the two skill sets -- coastal navigation and using a chart plotter -- could work together, so I did the best I could with Navionics on my cell phone (it may be great on an IPAD or computer, but I have used it twice now on my phone and don't recommend it when used that way. IMO it's too clumsy for the small gain in information, but YMMV.)
Rather than try to snake her way through the many islands south of St. Petersburg without the rapid information a chart plotter provides, Samantha chose to go out to sea a bit and then angle in to our goal, Longboat Channel into Longboat Key. It was an ambitious plan for three reasons:
1) We had a much later start than anticipated
2) We had unexpected mechanical problems with the mainsail
3) The fuel gauge (which proved to be markedly inaccurate, as I understand it a fairly common occurrence on sailboats) led us to believe that we were much lower on fuel than we actually were. (I hope I remember to suggest to her to see if she could simply use a dipstick approach to her fuel tank. I can't on my boat, but she might be able to. I was too sick to go into the cabin, so I'm not really quite sure if her new fuel tank configuration would allow that.)
In the meantime, I was getting more and more sick. As skipper, it was Samantha's job to figure out the best way to get me to help, and trusting her to do this, I did not override her judgments. That turned out be very smart on my part.
I should state now that I also did not at any time look over her shoulder to check her calculations. Any movement made me more sick, and she was using my chart book, which suits a small cockpit better than larger charts. I was interested in protecting my chart book from my current medical state.
Samantha went below, knew immediately where her navigation aids were, and returned with dividers, hand bearing compass, parallel rulers, protractor, and two rotating wheels which she described as a "sailing slide rule." That last one is not something I'm familiar with but very curious about now. Some time when it is less likely that I would soil it rather badly, I want to get a look at it and what it can do. It wasn't covered in the coastal navigation class I took, which unfortunately emphasized ... chart plotters.
Using these tools while the 15 year old Sea Scout who was with us quite competently handled the boat by herself (in spite of never having single-handed before -- more about her later), Samantha was able to locate our position with remarkable precision. We know this because my phone had just enough battery left to confirm our location.
I have two observations about all of this, done when it really mattered (thanks, Samantha! You saved me from being a lot more sick than I already was.)
First, Samantha did a truly excellent job of navigating when it really counted.
Second, neither Boat US nor the Coast Guard were at first confident that she actually knew where we were. Why? Because we didn't have a chart plotter. THEY seemed to be so reliant on electronic aids that they did not believe Samantha when she reported our position using things like dividers and paper charts. They may well have had good reason for this. It is my suspicion that an awful lot of people don't know how to do it. I don't believe I could have done it as well as Samantha did (assuming I hadn't been sick).
I believe that part of what convinced the Coast Guard that they should come and get us was that over a half hour they got three reports from Samantha of our location, and that the three points reported made sense. By the way, Samantha was loathe to draw lines on charts that weren't hers, adding a new layer of complications that did not prevent her from doing the job well.
The Coast Guard found us efficiently, and something that has to be kept in mind in all of this is the nature of the typical coastal Coast Guard vessel. They are not really equipped for medical rescue. There was no stretcher or back board and it would have been a very bad idea anyway. There was no room in their little cabin for such apparatus. In the back of the boat, lying down simply was not an option. I needed all the physical strength I could manage to muster to be able to sit and hang on to that gun turret or whatever it was (it might have just been an incredibly stout stanchion for lines with a big hole drilled in the top for some other reason than a gun mount). If Samantha had delayed calling, I'm not sure I would have had that strength. I did crash somewhat later in the hospital, but that's a far better location than on a sailbot some miles off shore -- or even on the Coast Guard boat. She got me rescued in a timely way.
We knew the chart plotter wasn't going to work as we left the dock, but they can and do sometimes malfunction some distance into a trip, suddenly and unexpectedly. If I had been on a boat where no one had good coastal navigation skills, I could have ended up much more sick. No solution is perfect. Often it will be the skipper who has these skills, but what if it's the skipper who is sick? We could have just as easily gone on my boat, and I would have had no guarantee that my crew had these skills.
If that's your situation, get a backup chart plotter. I really dislike the handheld chart plotters, but they will give you latitude and longitude, which is all that's needed to get emergency help to your boat. I really do not recommend counting on your phone. You may be too far off the coast to get a signal, but in addition, the lack of sub-menus makes it much more difficult to find something as basic as latitude and longitude.
In fact, the difficulty of finding latitude and longitude in the Navionics program points to something else about the philosophical approach to the design of electronics navigation. Navionics, for instance, focuses far more on establishing a route and using it as a track (something a modern chart plotter does fairly easily) than in just telling you where you are. I'm going to look for an app that just gives lat and long, because that's really all we needed. With rapid access to latitude and longitude, we could have confidently snaked ourselves through Mullet Key, Egmont Key, etc. At the push of a button we could have told the Coast Guard where we were.
Finally, Navionics depletes the phone battery quite rapidly. We did not have a DC charger with us (it's an easy thing to forget), and when it was dead, it was done. Using Navionics in the open Gulf we could turn it off, but near the shore you would want to leave it on.
I have seen people use Navionics on their phone quite effectively, but it has a steep learning curve, it doesn't do it nearly as well as a chart plotter, it is hard to see to program it in sunlight, and it uses a lot of battery up pretty quickly. Except in an emergency it gets a thumbs down from me.
I'll look and report on what I find regarding lat/long apps, but since I use an Android and most people seem to have Apples for smart phones, people should look on their own as well. T-Mobile, for instance (my provider), recommends that I use only T-Mobile tested apps, and my experience has suggested that this is true. While an I-Phone supposedly gives lat and long, it is also buried in the phone. The Coast Guard tried to lead Samantha through her phone to find it on her phone, apparently not trusting her navigation skills, but in Samantha's view it's the phone that failed. She never did find it and -- smartly -- asserted her status as skipper and insisted that they use the position she had plotted the old-fashioned way.
The weekend's experiences enhanced my opinion that both chart plotters and skilled use of paper charts are crucial, and not just for "serious" sailors. Going out on the water is a little dangerous, and it isn't right to abuse the system by forcing the Coast Guard to do a costly and time-consuming grid search because you didn't know how to figure out where you were.
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