Runway overrun monitor and method for monitoring runway overruns
OwnerDean E. Ryan, William C. Brodegardinventors
Life of this patent
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Abstract
A critical point on a runway indicates a point at which an aircraft may experience a runway overrun if landing beyond the critical point. A path projection is extended from the aircraft at a descent slope angle to determine whether the aircraft will land beyond the critical point at the current descent slope. Timely alerts may be provided by accounting for the time required to announce a distance value, and the distance traveled during the announcement.
Claims23
A method of providing situational awareness during landing of an aircraft, comprising:
- determining a critical point on a runway, the critical point indicating a point at which if the aircraft lands beyond the critical point, there is a likelihood of the aircraft overrunning the runway;
- determining whether a path projection of the aircraft intersects the runway in front of or beyond the critical point;
- and
- providing an alert if the path projection intersects the runway beyond the critical point.
A method of providing timely alert messages in an aircraft during landing, the method comprising:
- determining message data regarding the aircraft's status during a landing phase;
- determining aircraft speed;
- adjusting a message based on the message data according to the aircraft speed;
- and
- announcing the adjusted message.
A method for monitoring for runway overrun when an aircraft is landing on a runway, comprising:
- determining an aircraft's position on the runway after the aircraft has touched down;
- determining the aircraft's groundspeed;
- calculating a runway distance remaining before the aircraft on the runway;
- calculating a distance required to reach a desired speed;
- and
- generating an alert if the required distance is greater than the remaining runway distance.
A method of providing timely alert messages in an aircraft, the method comprising:
- determining a range between an aircraft and traffic;
- determining a closure rate between the aircraft and the traffic;
- adjusting the range according to the closure rate;
- and
- announcing the adjusted range.
Dependencies are inferred from the claim text.