초록 ▼

A proximity to terrain warning system for aircraft utilizes a first set of warning criteria to generate a warning in the event of insufficient terrain clearance after take off. A different set of criteria are employed to generate warnings when the aircraft in in a cruise or approach phase of flight

A proximity to terrain warning system for aircraft utilizes a first set of warning criteria to generate a warning in the event of insufficient terrain clearance after take off. A different set of criteria are employed to generate warnings when the aircraft in in a cruise or approach phase of flight or on a tactical mission. Mode switching is provided to select the appropriate criteria and to select an excessive descent after take-off set of warning criteria in addition to the first set of criteria when appropriate.

대표청구항 ▼

A ground proximity warning system for aircraft comprising: a source of signals representing aircraft flight parameters; a source of signals representative of the power level of the engine of the aircraft; first warning means responsive to said flight parameter signals for generating a warning in acc

A ground proximity warning system for aircraft comprising: a source of signals representing aircraft flight parameters; a source of signals representative of the power level of the engine of the aircraft; first warning means responsive to said flight parameter signals for generating a warning in accordance with a first predetermined relationship between flight parameters; second warning means responsive to said flight parameter signals for generating a warning signal in accordance with a second predetermined relationship between flight parameters; means responsive to said power level signals for providing a signal representative of take-off power; and means responsive to said take-off power signal for enabling said first warning means to be generated only if said take-off power signal is present; wherein said take-off power signal providing means includes means for relaying the generation of the take-off power signal for a first predetermined time interval after an engine has reached take-off power, and means for delaying the take-off power signal by a second predetermined time interval when the speed of the aircraft exceeds a predetermined air-speed.