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The Great Circle Mapper displays maps and computes distances along a geodesic path. It includes an extensive, searchable database of airports and other locations.
Great Circle Mapper. FAQ Featured Maps More Home Map Distances. From To Initial Heading Magnetic Heading Distance Time; Total: 85,607 nm: 181:53: Average: 3,171 nm: Show Hide latitude and longitude Show Hide fractional heading 27 segment path: ORD (41°58'37"N 87°54'29"W) ANC (61°10'27"N 149°59'53"W)
9 kwi 2019 · A great circle is essential to plotting the most direct route between two cities on a round planet. Learn how to use GCMap to design your next itinerary.
Use Great Circle Mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.
The Great Circle Mapper ( www.gcmap.com ) began in 1996 as a free tool for visualizing the shortest path between airports around the globe—a geodesic, commonly known as the great circle path—and for computing the distance along this path.
How are the great circle distances calculated? The geod program from the PROJ.4 cartography tools is used to calculate both the distances and the points along the paths, which are rendered using a custom rendering tool. Is Earth assumed to be a sphere? No, the WGS 84 model of Earth's ellipsoid is used. Is there a simple way to compute great ...
Great Circle Mapper, also known as “GCMap” and available at gcmap.com, has been a beloved tool among dedicated aviation geeks for quite some time. More recently, it has become even more valuable for Canadians with Aeroplan’s implementation of distance-based reward pricing.
