US 12,454,367 B2
Methods and systems to evaluate the position of aircraft landing gear
Rohith Sheshadri, Bangalore (IN); and Sunitha Panchangam, Bangalore (IN)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Feb. 8, 2024, as Appl. No. 18/436,145.
Claims priority of application No. 202311084330 (IN), filed on Dec. 11, 2023.
Prior Publication US 2025/0153858 A1, May 15, 2025
Int. Cl. B64D 45/00 (2006.01)
CPC B64D 45/0005 (2013.01) [B64D 2045/0085 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for evaluating the position of landing gear on an aircraft, comprising:
detecting a change in audio noise of the aircraft from an enhanced flight audio recording system (EFARS) located onboard the aircraft;
comparing the change in audio noise of the aircraft to a database of audio outputs of the audio pitch of the aircraft with the landing gear extended;
detecting an increase in vibrations of the aircraft from a flight management system (FMS) located onboard the aircraft;
comparing the increase in vibrations of the aircraft to a database of vibrations of the aircraft with the landing gear extended;
detecting a decrease in airspeed of the aircraft from the FMS;
comparing the decrease in airspeed of the aircraft to a database of airspeed of the aircraft with the landing gear extended;
determining the position of the landing gear based on results of the comparisons of the change in audio noise, the increase in vibrations and the decrease in airspeed; and
indicating the position of the landing gear to a pilot of the aircraft.