Navigators use a little verse to tell them whether to add or subtract the variation when applying it to the compass reading to get the true direction: “Variation east, compass least; variation west, compass … Page 2 Si vous utilisez une boussole Brunton munie d’un système de visée à miroir, ajustez-le de façon à qu’il reflète tout le cadran azimutal lorsque vous regardez la base. If your compass lacks the corresponding map measuring scale , use the regular Metric ruler found on the edge of the baseplate . How to Use a Compass - 3 Easy Steps Despite the fact that a compass is a basic tool for getting around, it can be an intimidating piece of equipment for those who've never held one before, much less used it to safely navigate an unfamiliar bit of wilderness. Get to Know Your Compass . compass housing with the map in step 2, when navigating with the SILVA 1-2-3 system . I use blaze orange tether cord because it's strong and will help me spot my compass if I drop it on the ground; How to Use a Compass Process overview: This process allows users who have registered for Compass to log in to the system. The compass card may have a sapphire cap and an agate point for its pivot. Sighting with a Mirrored Compass • Hold the compass level with the mirror at about a 45° angle.! With a compass, you can fi nd your way anywhere in the world. By referring to the north (red) end of the magnetic needle and lining it up with the orienting arrow (bed) that is imprinted on the bottom inside the compass housing, you can read the direction (number of degrees from north) you As you know, the north seeking arrow it's always going to point towards magnetic north. Step 2: Align to grid north. Which parts your compass has depends largely on what kind you carry. If the map scale is 1:50 000, and your compass has the corresponding map measuring scale, use this to measure distance. For the moment, don't worry about the north arrow. The first thing you need to learn, are the directions. The protractor is used to measure angles (in degrees), while the compass is used for constructions. A quick video showing you how to use and understand the basics of a compass of compass parallel to the direction the feature plunges 2. compass dial until … 3. “Red” is in the “Shed” 4. Top tip: The red end of the compass points to north, the black end points to south. When you use the compass for navigation, don’t put any metal object near the compass. Compass bearings step 1: line up your points. A compass is a wonderful tool for finding your way around compass points that confuse so many people. MN 340 N 320 300 280 W 260 240 220 200 S 160 140 120 100 E 80 60 40 20. Most of us know how to use the compass, but when using a … In order to measure the strike, place the side or edge of the compass against the plane of the outcrop. Your own life or someone in your group could be saved by your ability to read a map and navigate your way to safety.. To become accomplished at taking bearings and converting them will require you to read carefully through the following directions and let the directions “sink in”. Select a bearing (for example NW or 60). Glacial Striations (Maine) M. J. Cooke To use a sextant to find the angle of elevation of an object, you’ll need to know your elevation above sea level. Beginners guide to using a compass Using land features instead. How to Use a Compass . Example: If the map scale is 1:50 000, then 1 mm on the map = 50m in the terrain. Proper use of a compass is a basic but essential skill in backcountry hiking, which often involves getting off marked trails The lensatic Read more. My compass didn't come with a cord attached, but it did have a lanyard hole. How to use and read a compass, (if you are traveling any distance off the beaten path without a GPS device), is an essential survival skill. Use of compass for measuring direction of a line simplifies the surveying to a great extent. How to use a compass Lesson 1 - Using the compass alone. Sight the horizon by looking through the horizon mirror, then move the sextant’s index arm until the object you’re trying to find is also visible on the horizon. Locate yourself and a prominent distant object on the map, and measure its magnetic bearing with the compass. ! Use your compass to check to see if you are correct. If the user hasn’t yet registered, please see the user guide ‘How to register for Compass’ for help with how to do Read direction to “Fred” 1. Construction of different types of compasses, the system of noting bearings of the lines, some problems associated with measurement with compass are explained and then field work involved in compass survey is presented. You can use a map and the parts on the compass, such as the needle, dial, cardinal and ordinal directions, and base plate, to guide you to a desired location. Students use a compass to determine bearings/direction. and the compass is pointing to your objective, you need to start walking Do not walk and look at the compass at the same time - It’s easy to veer off your bearing-You can’t see what’s in front and around you Find an intermediate point that is on your bearing, put your compass down and walk to this point, and repeat this until you get to your Navigation is one of the Ten Essentials and most outdoor speople take a compass with them on every adventure. I have made a couple of PDF’s that you can download below that show you how to: - Set the map to north APN - How to use the compass to point you down the correct path - 1-2-3 - How to use the compass to go across more open countryside - A to B. I will also be putting up a crib sheet for relocation skills in the next month or so. We’ll talk more about how they are used since this skill can be amazing for search-and-rescue missions, or for finding your way to somewhere that no one has ever been before. How to Use a Compass to Find the Right Direction. To use your lensatic compass to find the direction of your intended azimuth which you probably got from your map, using your protractor:. If your compass lacks the corresponding map measuring scale , use the regular Metric or Imperial Ruler found on the edge of the baseplate . Most compass-es are marked with the four cardinal points—north, east, south, and west—but some are marked additionally with the number of degrees in a circle (360: north is 0 or 360, east is 90, south is 180, and west is 270). About the best thing you can possibly do is to add a small length of sturdy cord to your compass. If you get anything that's metal around your compass, the north seeking arrow will follow that metal all the way around. The protractor as well as the compass were instruments used in ancient Greece to solve geometry problems. User guide: how to log in to Compass . A Compass Is For Getting Your Bearings. Plotting a bearing on a map using a round lensatic compass. We will use the convention that North is 0° or 360°, East is 90°, South is 180° and West is 270°. Read the white end of the compass needle Trend: The orientation of a line, in the direction that it is inclined. Page 1 If you are using a Brunton compass that has a Sighting Mirror, adjust the mirror so that it reflects the entire compass dial as you look across the Figure 7C Base Plate. This method will only work if you are in an area with visible prominent features or landmarks. Soon the needle became the centerpiece of the compass, and travelers had a valuable tool for helping them find their way. Using a compass to get a bearing to a distant target. Use common sense, such as knowing that if you are in North America, Europe, or Asia and heading anywhere towards the sun during the middle of the day, you are heading in a southerly direction. skill—when you learn how to use a compass. This is a very easy lesson, and I would say, not sufficient for those who would like to travel safely in unfamiliar terrain. To Follow a Bearing . How to use a compass A compass is basically a 360o protractor that has a needle that will point to magnetic north. Roles: All. Learn how to use the lensatic compass used by the US Military. Time: One 30 – 60 minute session Materials: Copies of diagrams, orienteering compass, writing utensil Directions: Hold compass level 3. compass as well as a map. But how do you use them? First, find the declination in your are by visiting NOAA Geomagnetic Data Then, follow the directions that came with your compass to set the declination properly. Hold the compass level - if the compass is tilted, the needle will touch the clear lid and not move correctly. Prismatic compass - This is a more expensive type of compass with a prism which enables a compass bearing to be taken while sighting your objective. Then, look at the travel arrow on the baseplate of the compass … To find North: Hold the compass horizontally then rotate until the red arrow points to the red “N” . Although you may not use your compass regularly, it is a vital piece of survival equipment and something that you definitely don’t want to be without when you desperately need it. A lensatic compass is also known as a military compass, and these compasses are used to cross terrain that may not have trails or may be more challenging to navigate. For these measurements we will use a Brunton compass like the one you see in the pictures above. As an alternative to using a compass to orientate your map, you can use your eyesight. Now you can take a bearing on a real object. Sighting the bearing. Even though these days, you might use your cell phone, an app, or the GPS system in your car to get directions, you can accomplish the same thing with a compass. Associated Objective: Students will become familiar with navigational tools (map and compass) and demonstrate their ability to use them to navigate successfully. To use a compass, hold the compass flat on your outspread hand in front of your chest. Rotate DIAL on the compass until chosen bearing lines align A compass is the most reliable navigation method—but it’s no good unless you know your way around it. Keeping these two simple items in your pack—and knowing how to use them—is a small step that could save you a lot of trouble. Both kinds are easy to use … Today's compasses are easy to use. We will begin by taking the strike of a bedding plane. Before we use your compass, we'll have to set the declination. How to use a compass for hiking in Australia. A compass with a larger base is useful here for covering longer distances, but you can use a straight edge with a smaller compass. It can be more accurate than other compasses but it is harder to use and therefore should only be used once the basic principles of map and compass work have been mastered. Read the correct end of the needle. Next, turn the degree dial so that the orienting arrow lines up with the magnetic arrow inside the compass. Using a compass is a life saving skill. • Use the sighting notch to align the compass with the target. 8 RULER If the map scale is 1:50 000, and your compass has the corresponding map measuring scale, use this to measure distance. HOW A COMPASS WORKS A thousand years ago, someone noticed that a magnetized needle floating in a bowl of water would swing around to point in a northerly direction. Point “Fred” at object Summary – Compass Basics • Compass parts – Mirror (cover), base, dial, needle, declination set screw (some models) • Uses – Determine a direction to travel – Determine direction to known object Could save you a lot of trouble red arrow points to the system small that. That the orienting arrow lines up with the map in step how to use a compass pdf, when navigating with map. 1 mm on the map, you can take a bearing ( for example NW or 60 ) 100. 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