Welcome to FlightDocs
FlightDocs aims to be an open-source repository of pilot information and reference material that is usually taught as part of pilot ground schools. On this site you'll find a variety of pages with concise explanations about aircraft systems, the national airspace system, weather, and pilot regulations.
If you find something missing or inaccurate, please open an issue on Github. Or even better, submit a pull request to update the content.