| 摘要 |
The invention concerns steering and air navigation assistance. More particularly it concerns a system to provide an aircraft pilot with instant assessment of terrain collision risks, comprising means for computing a forecast trajectory of the aircraft from its current survey point, a ground database including data concerning terrain position and altitude, and means for determining a risk of collision between the aircraft and the terrain on the basis of the forecast trajectory and the data concerning the terrain in the proximity of said trajectory. The system comprises means for displaying simultaneously on a screen a plot of the forecast trajectory (TP) and a symbol of terrain collision risk (ST1, ST2, ST3) representing the nature of the risk incurred, the symbol of risk being located on the screen, with respect to the plot of the forecast trajectory, at a position corresponding to the real relative position with respect to the forecast trajectory, of an obstacle creating said risk. |
