| 20110015816 | Aviation ground navigation system - Transporting aircraft within an airport operational area. An airport operational area within which an unmanned ground vehicle is configured to selectively tow aircraft is defined. A ground tracking system provides position data signals to determine the position of the unmanned ground vehicle position relative to positions in at least one operational area path contained in the airport operational area. This positioning is supplemented by the position as determined from an electronic tracking system, such as a radar-based system. The unmanned ground vehicle is then selectively guided to engage and tow the aircraft to a selected position within the airport operational area. | 01-20-2011 |
