In this presentation we will go over basics of how to install and use PostGIS.

- Install Local Postgis / Cloud Solutions
- How to calculate distance between two Airports/Points/Locations using
- The old school math using the "Spherical Law of Cosines" and "Haversine" formulas.
- The new school PostGIS method of doing the same math for calculating the distance

- How to calculate flight time and cost between Airports/Points/Locations.
- Tiger Datasets (FREE)
- World Administrative Datasets (FREE)
- Natural Earth Hypsometric Tints (FREE)
- Google - Visual Representation of GIS data - Sample
- QGIS - Visual Representation of GIS data - Samples

The notes in the Power Point version of this presentation contain many reference links for everything described in this presentation including math, datasets, etc.