The CAMEX-3 DC-8 Data Aquisition and Distribution System and Navigation data files contain information recorded by on board navigation and data collection systems. In addition to typical navigation data (e.g. date, time, lat/lon and altitude) it contains outside meteorological parameters such as wind speed and direction, temperature, cabin altitude, vertical speed, saturation vapor pressure of water and other parameters. These ascii text files are recorded every second for the length of the sortie. In addition, graphical representations of these measured parameters are shown in .gif files.