The pilot or crew of an aircraft is alerted to the danger presented by wires in the vicinity of the aircraft by a flight instrument which includes a plurality of wire detected display elements, advantageously arranged as bars on the face of the flight instrument, and which display elements are color coded according to the level of danger presented to the aircraft by the detected wires.
Method And Apparatus For Detecting A Terrain-Masked Helicopter
Philip L. Kirkpatrick - Dumont NJ Richard P. Krulis - Morristown NJ
Assignee:
Honeywell International Inc. - Morristown NJ
International Classification:
G01P 336
US Classification:
356 285, 356 501, 356 51, 3561411
Abstract:
A robot sentry with a scanning laser observes the sky just above the geographic skyline looking for a vertical airflow pattern characteristic of the rotor inflow to a helicopter rotor. The presence of this vertical airflow pattern indicates the probable presence of a reconnaissance helicopter that is using terrain masking.