| 摘要 |
An aircraft 160 approaches a landing point 162 following a flight path 164 to a designation point 166, the pilot sights the landing point 162 and activates the apparatus. A first calculation of coordinates for the landing point 162 is made and landing symbology generated. The pilot reviews the landing symbology and decides whether or not there is an acceptable correlation with the landing point 162. If not, the pilot will continue along the flight path 164 activating the apparatus at further designation points 168, 170 and 172 to reduce the designation error between the coordinates calculated by the apparatus and the real world landing position 162 observed by the pilot until the pilot is satisfied. At this point the pilot enters a landing phase and the symbology provides the pilot with landing cues even when the helicopter 160 enters a brown out event indicated by cloud 174. |
