CTAF Landing Assistance Display for Non-Towered Traffic Sequencing
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Solution Overview
Problem
Pilots approaching non-towered airports face challenges in managing traffic patterns and maintaining safe flying distances due to reliance on CTAF communications and visual correlation with other aircraft, increasing pilot workload.
Innovation Solution
A system and method that utilizes a common traffic advisory frequency (CTAF) and geospatial sensors to generate a landing assistance display on board an aircraft, providing graphical representations of traffic patterns, aircraft positions, and intruder aircraft positions to aid in sequencing and maintaining safe distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the pilot relies on CTAF communications and visual correlation to monitor other aircraft, then situational awareness of traffic pattern is achieved, but pilot workload increases
Solution Approach 1:
The patent introduces an intermediary system (display device showing traffic pattern graphics) that mediates between the complex task of monitoring CTAF communications and visually correlating aircraft positions, and the pilot's need for situational awareness. The display device processes and presents traffic information in an organized visual format, reducing the cognitive burden on the pilot.
Solution Approach 2:
The system provides continuous visual feedback to the pilot by displaying updated positions of other aircraft relative to the traffic pattern. This feedback mechanism allows the pilot to maintain situational awareness without continuously processing verbal CTAF communications and mentally tracking aircraft positions, thereby reducing workload.
2Reliability
If the pilot continuously monitors CTAF and visually tracks other aircraft, then safe flying distances are maintained, but additional workload is created
Solution Approach 1:
The display device acts as an intermediary that continuously monitors and visualizes the positions of other aircraft relative to the traffic pattern and the ownship aircraft. This visual representation helps the pilot maintain safe flying distances without the need for continuous mental calculation and visual tracking, reducing workload while preserving safety.
Solution Approach 2:
The system performs preliminary analysis of traffic positions and presents them in a pre-processed visual format that highlights potential safety concerns. This preliminary action allows the pilot to make safer decisions with less cognitive effort, as the system has already processed the raw data into meaningful visual information.
Data Source
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AI summary
Systems and methods are provided for providing landing assistance at a non-towered airport onboard an aircraft. Traffic data associated with an intruder aircraft is received via a common traffic advisory frequency (CTAF). The traffic data includes a position of the intruder aircraft. An aircraft position of the aircraft is received from a geospatial sensor system of the aircraft. A determination is made regarding whether the position of the intruder aircraft is within a pre-defined distance of the non-towered airport. A landing assistance display including a graphical representation of a traffic pattern, the aircraft position of the aircraft, and the position of the first intruder aircraft with respect to the traffic pattern is generated for display on a display device onboard the aircraft based on the determination.