Navigation Articles Modern Navigation Asus Laptop - Ultimate So ff9 urce Great selection and low price. Save big on latest mobile electronics. The history of navigation started with simple markings and landmarks to know where your territory lied. Land navigation starts with basic piloting that is simply knowing your present and exact position in familiar territory by familiarizing yourself with visual landmarks and place markers. To do piloting you can also employ a map, nautical chart, or aeronautical chart in unfamiliar places. Topographical maps are usually used on land wherein they show the surface areas like roads that we might use. Nautical and aeronautical charts are used on sea and in the air where they show obstacles that must be hurdled, landmarks and certain positions that are valuable to piloting a craft or yourself. There are some tools especially needed for successfully piloting a craft, aside from a map, there is a need to have a measuring device for plotting a course on a map. Of course no navigator would ever be without a compass. A compass is a device that can easily assist you in orienting the location on the map or chart, obtaining the bearings needed to locate landmarks and for maintaining a steady and straight direction of travel. Navigation System Twenty-eight gram UAV autopilot - integrated GPS, gyros, pressure sensors, includes Horizon ground control software. Another tool is a sextant; this can be used to measure the angle of a certain star on the horizon or the angle in between two specific terrestrial landmarks. If there are no visible landmarks on the horizon or on the map, you can use other techniques. One technique that is widely used around the globe is called dead reckoning. Navigation Looking for navigation? Find exactly what you want today. The technique dead reckoning allows you very little area for mistakes to deduce their position by going straight ahead with their current position on a chart. This is also done using their known course, speed, and time of travel and plotting their course to find their destination. Celestial navigation is most commonly used when out of sight of land and done by employing the use of the Sun, the Moon, the stars, and planets as reference points for navigation. In addition, you should use a sextant as mentioned above. Navigation Travelling on London's Tube System? Plan all your UK travel info here with Britains official tourism authority. Another thing that celestial navigation needs is an accurate time source or a time keeping device like a chronometer or a nautical almanac. Research Business Topics Business information on navigation. One of the basic techniques of any navigator is to derive a line or circle of position of the area that you want to be in. Taking the bearing going to or distance coming of a landmark and plotting the resulting line of position or circle of position on a navigator's chart usually does this. Ainuddin Mohamad is the Webmaster of the Online Reading Center at http://onlinereadingcenter.com which features online reading resources.