We thank and acknowledge the following individuals and organisations for their contribution in making this site possible.
Maps
- Google Maps and Google Earth
- OpenStreet Map is a free editable map.
- Mapbox is powered by high-quality open data from OpenStreetMap
- Aeronautical Maps 1:500 000/1:1 000 000 – Reproduced under SA Government Printers Copyright
Authority No. 11434 dated 04 March 2009 - National Geospatial Information South Africa - USA VFR Sectional Charts – VFRMAP
Airfields and Airscapes
- Original Google 3D Airspaces by Lloyd Bailey
- Airfield data is obtained from published maps, the internet, member contributions, David Megginson @ ourairports.com and our GPS
Weather and Notam Information
- Earth Systems Research Laboratory RUC USA
- EUMETSAT
- Wunderground
- Weather Charts Copyright Diego Berge
- Space Science and Engineering Centre
- National Oceanic and Atmospheric Administration (NOAA) USA
- Federal Aviation Administration USA (PilotWeb)
- weatherAero
APIs and Libraries
- Elevation information obtained from the Google Elevation API
- Leaflet JS API
- Geodesy Representation Conversion Functions by Chris Veness
- Latitude/longitude Spherical Geodesy Formulae & Scripts by Chris Veness
- Datejs by Coolite Inc
- Magnetic variation information obtained from the USA DOD World Magnetic Model 2010-2015
- PDF generation uses Bruno Lowagie’s iText library
- Altitude and groundspeed graphs rendered with Walter Zorn’s Vector Graphics library
- Magnetic variation calculation adapted from code by Ed Williams, using IGRF 10 field data
- Elevation information obtained from the Topocoding Server - Topocoding API
- Graph generations uses jsCharts