FlightLinux
- Plan for a real-time variation for onboard spacecraft use.
- http://flightlinux.gsfc.nasa.gov/

Linux Aviation HOWTO
- The Linux Aviation HOWTO provides pointers to software packages that run under the Linux operating system and are useful to private, commercial, or military pilots.
- http://www.ibiblio.org/fplan/Aviation-HOWTO/Aviation-HOWTO.html

LEAP: Linux-Equipped Astronauts Project
- LEAP is a project to port to Linux those applications that the astronauts use on their laptops, so that each astronaut has a choice of operating systems.
- http://www.cantrip.org/leap.html

Linux on the Space Station
- Information about the Linux applications which are being used or developed for the International Space Station.
- http://www.sheflug.co.uk/featuresoft.htm

The fplan Home Page
- fplan is a freely distributable application (with source code) designed to assist general aviation pilots in creating flight plans for cross country flights in powered aircraft.
- http://www.ibiblio.org/fplan/