초록 ▼

Aircraft tail strike protection is provided by displaying to a pilot tail strike warning symbols during takeoff and approach to landing. In a takeoff scenario, a pitch margin indicator symbol referenced to a boresight symbol provides a pilot with anticipatory information and an awareness of the pitc

Aircraft tail strike protection is provided by displaying to a pilot tail strike warning symbols during takeoff and approach to landing. In a takeoff scenario, a pitch margin indicator symbol referenced to a boresight symbol provides a pilot with anticipatory information and an awareness of the pitch attitude margin before a tail strike incident. In an approach to landing scenario, a TAILSTRIKE warning annunciation is referenced to a flight path symbol and alerts the pilot of an impending tail strike incident. The symbols displayed during either scenario center on the pilot area of focus for each task. They give the pilot an awareness of an impending tail strike incident and necessary reaction time to avoid it.

대표청구항 ▼

[ What is claimed is:] [1.] In an aircraft optical display system that produces images for observation by a pilot, the display system including an image source providing an image carried by light propagating along an optical path and an optical display surface positioned so as to provide an image fo

[ What is claimed is:] [1.] In an aircraft optical display system that produces images for observation by a pilot, the display system including an image source providing an image carried by light propagating along an optical path and an optical display surface positioned so as to provide an image for observation by the pilot, a method of providing for display on the display surface aircraft tail strike warning symbology that alerts the pilot to a possible impending incident in which the aircraft tail strikes the ground as the aircraft moves, comprising:providing a nominal aircraft tail strike pitch attitude parameter established by aircraft-specific dimension criteria;deriving actual aircraft pitch attitude information, the actual aircraft pitch information derived from aircraft pitch attitude sensor information;offsetting the nominal aircraft tail strike pitch attitude parameter by the actual aircraft pitch attitude information to produce an aircraft margin signal; andproducing for display aircraft tail strike warning symbology whenever a signal corresponding to the aircraft pitch margin signal is not within a preassigned operational tolerance.