Systems and methods for an enhanced stable approach monitor

• Main Authors: Khatwa, Ratan, Ishihara, Yasuo
• Format: Patent
• Language: English
• Published: 15.03.2022
• Subjects: AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; AVIATION; CALCULATING; CHECKING-DEVICES; COMPUTING; CONTROLLING; COSMONAUTICS; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; GENERATING RANDOM NUMBERS; PARACHUTES; PERFORMING OPERATIONS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; REGULATING; SIGNALLING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TIME OR ATTENDANCE REGISTERS; TRAFFIC CONTROL SYSTEMS; TRANSPORTING; VOTING OR LOTTERY APPARATUS; WIRELESS COMMUNICATIONS NETWORKS

Alerting systems and methods for an enhanced approach monitor are provided. The system is configured to: determine a missed approach altitude (MAA), an intended configuration, and target approach speed, each being related to the intended approach procedure and aircraft specific data. At a decision point defined as a co-occurrence of (a) the RT distance is substantially equal to or less than a distance threshold, and (b) the RT altitude is substantially equal to the MAA, the system identifies go-around scenarios, such as when (i) the RT speed exceeds the target approach speed, or (ii) the RT configuration is not equal to the intended configuration, or (iii) an RT approach path angle exceeds the target angle. The system issues a go-around alert based on whether the aircraft can perform a go-around operation, as determined based on aircraft performance data and terrain data.