1. Take this moving compass with you for navigation.
Buy a pocket compass to orient yourself for visual navigation, check the accuracy of the steering compass, or determine the risk of collision with a Ship Navigation on the horizon. Before using a portable compass, find a location on your boat that is free from magnetic influences (wire or electrical cables). Follow these steps:
1. Stand in the cab, on the centerline, away from metal canopies or siding frames. Remove any jewelry or eyeglasses that may affect the compass reading. Keep knives, cell phones, computers, mobile devices, and Navigation Tools at least 36 “from the compass. Keep away from cables or batteries.
2. Find a prominent object at least 1 to 2 miles away. It doesn’t have to be an object on the map. See on the object; get a poll Write the poll. Have your boater make a slow, steep turn. Keep a constant eye on the object during the turn.
3. If the survey is still the same as the original survey, you have found your “magic point”. If the price changes, move to another location. Repeat the test until all bearings remain constant. Stay here when oriented for more precise coastal navigation.
2. Save time with a plotting compass.
Do you want to speed up time to plot latitude and longitude, plot dark positions, or find your position on the radar? Use a compass or drawing compass. This Navigation Instruments looks like a pair of dividers but has a small pencil point on one leg. This way you don’t have to pick up a pencil every time you measure on the map. Simply slide the leg with the line across the board to form a “checkmark” or arch. Fast, simple, and practical on the smallest sailboat.
3. Choose a protractor on parallel lines.
I can think of some Navigation Tools that are prone to errors in a small boat on a waterfront as parallel rules. I never figured out how to use things with precision when bouncing, stomping, or leaning. They seem to slip and slide when you least expect them. Ideal for the classroom perhaps, but not practical enough to navigate or navigate.
Choose a protractor for simplicity and precision. All protractors consist of a transparent square or rectangle with compass degrees engraved on the plastic. Use lines of longitude or a north-south line on a map to line up the protractor. This reduces the need to use a compass rose and then “haul” the tool to another location.
My favorite is still the Plotter Weems. I have been using this tool for over twenty years as a professional and recreational sailor on large Ship Navigation and small sailboats. The Weems has a metal bar with wheels on a long edge. You can roll the Weems anywhere on the map to get a quick and accurate heading or heading.
4. Carry a calculator without batteries.
Which square navigation instrument requires no power, can be used in heavy rain or even underwater, and calculates any navigation problem with time, distance or speed in just five seconds? Enter the nautical slide rule. Now if you’re anything like me all I get is the phrase “slide rule” giving me goosebumps. After all, I am not a mathematician, let alone an engineer! But this Navigation Instruments is designed “for the rest of us” mortals.
Better yet, you only need to know two of the three factors (time, speed, or distance) to solve the third. If you know your speed and distance, you can find your estimated time of arrival (ETA). Knowing your time and distance can help you find the speed you need to compensate (SOG). Knowing your speed and your time will help you calculate the distance you will travel. Simple, precise and fun to use.
Save your graphics for a longer life.
Navigation involves measuring distance, latitude, and longitude along the map scales on the sides of your map. It can quickly transport flakes of “puncture wounds” imposed by dozens of dividers or compass needle points. Use Scotch Magic © or similar clear tape with a matte finish to protect your card from wear and tear. Choose the width from 1/2 “to 3/4”. Place a long strip of duct tape on the scale.
Draw the course lines with a pencil (use light pressure to be able to erase it later). Glue the lines with clear 3/4 “wide tape centered on the pencil track. Use a felt-tip pen to draw the tracks nicely and boldly on top of the tape. Mark the tracks with your marker Place the magnetic track in the top of the track and cruising speed at the bottom of the track Your tracks and labels are readable day and night in all weather conditions.
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