IGC (file format)
An IGC file is a text file format used in flight recorders especially in gliders but also in paragliders in order to certify a performance. This format allows in particular the recording of the position, the recording of the evolution of the altitude but also of additional information such as the possible ignition of an engine.
Specification for this file format is published by the International Gliding Commission of the International Aeronautical Federation.
These files can be created using specialized equipment called FAI recorder or FAI logger or using certain anti-collision devices or using a dedicated application that can run on smartphone.
IGC files can optionally be digitally signed using public key cryptography, so that an IGC file can be verified as being created on a certain flight computer. IGC files generated on smartphones or other multipurpose hardware will not be signed.
These files can be viewed using software running in the form of rich client or web application. Some smartphone applications also allow you to view these files.
There are also tools to convert IGC files to tracks in GPX or KML with extension gx:Track format. They allow you to view the track made.