FAQ: Introduction

Q: What does this web site do?
A: The primary purpose of the Great Circle Mapper is to display maps depicting the great circle path between locations and to compute distances along those paths.

The maps can also show the area which is within a specified range of a location, or those areas which are within ETOPS range.

Q: What else does it do?
A: The Great Circle Mapper includes an extensive database of airports and other locations. In includes a search engine for searching this database in various ways and provides detailed information about locations in the database.
Q: What is a great circle path?
A: A great circle path is the shortest path on the surface of a sphere between two points on that sphere. Technically, the term geodesic path should be used since Earth is not a true sphere, but the great circle terminology is common usage.

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Copyright © 1996-2021 Karl L. Swartz. All rights reserved.
The Great Circle Mapper name and logo are trademarks of the Great Circle Mapper.
All other trademarks mentioned herein belong to their respective owners.
Please see credits for attibutions and further copyright information.

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