Zanshin I Raymarine Navionics

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Zanshin I was commissioned with more navigation hardware and software than I would have thought a small boat could have. But, now that I've learned at least some of the functionality of the equipment that I have, I have learned to love the systems and what they do to make navigation, sailing and passage making a lot easier.

The core system in the Raymarine ST-6001 autopilot, along with a wind speed & direction sensor, water speed sensor and electrical compass. The autopilot uses a linear electrical motor to drive and turn the ship's quadrant (round horizontal ring around the rudder stock) and thus steer the boat. The computer system allows me to set a magnetic course or a given angle to the wind and the system will keep that course automatically. When used in “wind mode” one needs to be careful, since if the wind shifts by 45° then the course will also shift by that much.

After the core system Zanshin I has a GPS sensor, a gyroscopic compensator (lets the autopilot steer better when the boat is pitching and yawing around in heavy weather), water temperature (still don't know what that can be good for). Then, to hook up all the systems and to put a graphical front end on it, Zanshin I has a large E120 chart plotter inside at the navigation station and a smaller E80 in a swiveling pod in the cockpit so that it can be seen from either helm station. The chart plotters are incredible devices - visible in color even in bright daylight and with a very detailed map of the land and ocean floor loaded (I gather they now have 3-D maps, at extra cost). The charts along with the GPS position and display of the wind direction, boat direction, drift, headings & bearings are cool enough, but Zanshin I also has a Raymarine radar installed which is also displayed on the chart - either by itself or overlaid onto the chart. With radar other functions can be used, one can choose a radar echo (another ship, for example) and then let the system plot the course and tell you if a collision is possible, or how fast the other ship is going and in which direction.

The final piece to this assembly of electronics is a Raymarine AIS transceiver.

Downloadable Manuals page - Raymarine Navionics Manuals


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