File Description: This is an add-on to the "dc3_bbsx.zip" Simulated Aircraft Bubble Sextant Gauge. While the simulated sextant determines the elevation to the star, it requires drawing lines of position on a chart to ascertain the latitude and longitude of the fix. The Global Navigation Charts (GNC) at scale 5,000,000:1 are suitable but not generally available for this purpose. This gauge simulates small sections of the proper chart, and automatically places the LOP from the sextant on the chart in the proper orientation. It includes installation and operating instructions, and an example flight description. Install the "dc3_bbsx.zip" first, if it hasn't been installed already.