Find Similar Products Like Marine Navigation at Amazon
|
When it comes any an ocean fairing boat, a marine navigation GPS will prove to be essential. For those who are out on the sea, you perceive how some dangers may be on the water. When you have a marine navigation system guiding you, there is a more outstanding prospect that you will be competent to refrain from dangerous obstacles and keep everyone on board a little safer. Weather is one of the main items that may directly affect any boat, and at times it may come on quickly. With a set of heavy rains and fog, there is a possibleness that the user might have a tough time seeing the area around them. This may prove to have desolating results if they proceed to push forward in an undertake to get out of harm’s way. Because of this, the use of a marine navigation GPS will prove to be necessary as it may support you to refrain from dangerous rocks and other surprises that you might not be capable to see other than as supposed or expected in the storm. Getting lost is another concern for those who are out on the sea. Since winds alter and directions may be taken incorrectly at anytime, there is a potential for getting lost at sea. Because a person can not afford the risks related with this, a marine navigation system may keep a boater on course until they reach the destination they are headed for. There is never a concern for any troubles thanks to the easy to use functions of the systems. Simply set out and have the peace of mind in knowing that you will stay on course and out of harm’s way at all times. Fishermen will find this tool necessary to have on their vessels as well. Because you may mark areas that are best for fishing and return to them with ease, there will be less time wasted guessing, and more time bringing in the necessities for your catch. Even more importantly, you may mark emplacements that you set traps at on the device for an requiring little effort return the following day and gather all you capture. Ocean waters are full of dissimilar hazards that may occur at any moment. When you have a good marine navigation GPS installed, you have the capacity to bypass a lot of of those dangers and keep your vessel on course, without having much harm to it. Many boaters aren’t conscious of areas where the water might become too shoal or areas that there might be heavy rocks until it is far too late. With the marine navigation system you may easy guide your ship through the best waters that are available for you. Sail with selfconfidence when you have a marine navigation GPS on your boating vessel, and keep your mind at ease that you won’t encounter troubles that the unequipped might face. If you value your safety, and the condition of your boat, then one of these powerful units will become an necessary part of your inventory. Most helpful customer reviews 70 of 70 people found the following review helpful. 19 of 20 people found the following review helpful. However, some of the background to the navigation “tricks” are questionable, to say the least. My first clue that I might have to watch out for apocryphal math ideas was in the first paragraph of the first page of the book, in the Acknowledgments, where Capt. Brogdon informs us that Newton invented logs and the slide rule (?!). This would be news to Napier and Oughtred, who actually did invent the slide rule twenty years before Newton was born. Ok, fine, move on. The book is clear and interesting, and I get over my huffiness about the opening paragraph. On page 127 we get into the time = distance off trick, explained clearly. On page 128 the “math” behind the trick is delved into. It’s wrong. He starts in the right place and ends in the right place, but sin(a-b)=(a-b)/60 is just wrong, that 60 doesn’t show up until you change units to minutes. Sin(a-b)/(a-b) is about 1 for small (a-b), not 1/60. So how serious is this? Not very. I think Capt. Brogdon knows his way around navigation very well, and he’s a good writer, the book is very clear. Don’t rely on the background math, but who really reads that stuff anyway, except people like me who are looking for word problems for their next Calculus class? So again, I get over my huffiness and move on. I approve of keeping Loran-C in the book. I don’t use it, but people still do and it’s good to cover it. I also approve of Capt. Brogdon’s fondness for depth sounders, I have a cheap fishfinder LCD on my outrigger sailboat, and it’s very useful. He’s clearly an expert on setting up and not messing up your compass. Very useful and clear stuff there. Good, so now I’m in a better mood. I move on to GPS. The GPS section is fine, but this is where the book is most dated, as viewed from 2009. A lot has happened in GPS since 2001. Mapping, for example. An updated version covering mapping GPS would be excellent. Finally, I wish publishers would spring for a real index in a book like this. A professional indexer would have made this book much more useful. The index included is cluttered, hard to read and badly organized. Overall it’s a good book. If you collect navigation tricks there’s a lot to learn from someone like this who has done it for a long time and can write clearly. Skim over the background math and hope the publisher asks him to update it to mapping GPSs. 8 of 9 people found the following review helpful. |
A really practical guide to navigating in small boats
Useful, but not perfect