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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.
- FAQ
Does the Great Circle Mapper assume Earth is a sphere? How...
- Featured Maps
Archives of Great Circle Mapper featured maps. Archives of...
- More
More stuff for the Great Circle Mapper . FAQ Featured Maps...
- Credits
The Great Circle Mapper's location database includes...
- Dallas Love Field
Airport information about DAL - Dallas [Dallas Love Field],...
- Memphis
Airport information about MEM - Memphis [Intl], TN, US....
- Louisville
Airport information about SDF - Louisville [Louisville...
- Atlanta
Airport information about ATL - Atlanta [Hartsfield -...
- FAQ
I need to use Python to create a great circle distance -- both a number, and preferably some kind of 'curve' that I can use to draw in a client-side map. I don't care about the format of the curve -- be it WKT, or a set of pairs of coordinates -- but just want to get the data out.
Draw you flight path on a map and calculate the great circle distance in nautical miles and kilometers. Get estimated flight time by choosing an aircraft type or entering the cruising speed.Click in the large textfield above to enter all the airports of your flight route!
A map from the Great Circle Mapper. 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) 320 ...
Does the Great Circle Mapper assume Earth is a sphere? How does the Great Circle Mapper calculate distances and paths? Why does the example in Ed Williams' Aviation Formulary calculate a different distance for LAX-JFK?
A: The default is to draw geodesic ("great circle") paths. A great circle path is the shortest path on the surface of a sphere between two points on that sphere. Since Earth is not a true sphere, the proper term is a geodesic path though great circle is commonly used.
How to Use Great Circle Mapper Like a Pro. 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.
