| 摘要 |
Method and corresponding system for improving sink rate alerting for rotary wing aircraft (12). In one example, the system (10) includes a radio altimeter (28) that produces an altitude value, a processor (20) that is in signal communication with the user interface device and the radio altimeter. The processor receives an altitude value, a position value for the aircraft and landing zone information. The processor determines if the aircraft is on an approach to land at a landing zone that is raised above surrounding terrain based on the received position value and landing zone information. The processor receives sink rate information for the aircraft and generates a sink rate alert based on the received sink rate information and the aircraft altitude value if the sink rate information is greater than a sink rate value adjusted according to the landing zone information. An output device (22, 24, 34) outputs the generated sink rate alert. The landing zone information includes an altitude value. |
