Definition of the Point of Reference for Measuring Latitude, Equipment List
The point of reference for measuring latitude is the point from which north and south coordinates are calculated. This point is also known as the equator, the line that circles around the Earth at 0 degrees latitude. The equator divides the Earth into two hemispheres: the Northern Hemisphere and the Southern Hemisphere.
Regarding aircraft navigation, the point of reference for measuring latitude is crucial to determine the aircraft’s position on the globe. The latitude is usually measured in degrees, minutes, and seconds north or south of the equator. The longitude, on the other hand, is measured in degrees, minutes, and seconds east or west of the Prime Meridian, which passes through the Royal Observatory in Greenwich, England.
To navigate accurately, pilots need to have a precise reference point for measuring latitude and longitude. They use equipment such as GPS (Global Positioning System), INS (Inertial Navigation System), and NDB (Non-Directional Beacon) to determine their precise location. A list of approved equipment for installation on an aircraft is necessary to ensure that the aircraft is equipped with reliable and accurate navigation systems. This list must be kept with the aircraft records and is usually found in the Pilot’s Handbook or Flight Manual.
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