Cockpit Landing Arc Display for Runway Reachability Assessment
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Solution Overview
Problem
Pilots face difficulties in assessing the aircraft's ability to land safely on a runway due to the display of circular arcs on the navigation screen being dependent on the selected display range, leading to incomplete information when the landing runway is behind the aircraft, and the arcs do not provide clear visibility of the runway's capacity for landing.
Innovation Solution
A method and system that automatically determine and display a first circular arc on the cockpit screen, intersecting a straight line between the aircraft's current position and the landing runway, ensuring the arc is visible regardless of the display scale, along with an optional second circular arc, to facilitate pilot understanding of the aircraft's energy dissipation and braking capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the circular arcs are displayed to indicate approach distances, then the pilot can assess landing capacity, but the arcs may not be visible when the display range is insufficient
Solution Approach 1:
The patent ensures that the circular arcs are pre-configured to extend beyond the current display range when necessary. By calculating and rendering the arcs to reach the screen edges or wrap around before the display is actually shown, the system guarantees that the approach distance indicators will be visible regardless of the selected display range, allowing the pilot to always assess landing capacity accurately.
Data Source
AI summary
A method for aiding in the piloting of an aircraft landing on a runway comprises determining current flight conditions of the aircraft, determining a first approach distance using the current flight conditions, determining a current aircraft position and selection of a first point on a cockpit screen that is a function of the current position of the aircraft, selecting a second point in proximity to the landing runway, and controlling the display on the cockpit screen, of a first circular arc centered on the second point and whose radius is a function of the first approach distance, the first circular arc intersecting at a third point with a straight line passing through the first point and through the second point and the length of a part of the first circular arc situated between the third point and a first end of the first circular arc, comprising a predetermined length.