Subject to change.
Rogers Data GmbHRogers Data Navigation Compass for VFR charts with scale 200k, 250k, 500k in cooperation with ARISTO
Rogers Data Navigation Compass combines sectional plotter, time-speed-distance computer, ruler and navigation compass template in a single device. It is used for path-time measurement for charts with scale of 1:200,000, 1:250,000 or 1:500,000 (depending on which compass you are using). Measuring distances To determine the heading, flight time and position Determination of headings with associated opposite cours.