- Home: http://rsfs.sourceforge.net/, https://sourceforge.net/projects/rsfs/, https://web.archive.org/web/20080725122954/http://php.scripts.psu.edu/cjh212/redshift/
- Inspiration: GL-117
- State: beta, inactive since 2008
- Keyword: simulation, flight
- Code repository: https://svn.code.sf.net/p/rsfs/code (svn)
- Code language: C, C++
- Code license: GPL-2.0
- Developer: Christian Haag