Abstract:
In exemplary embodiments, a caged spring assembly is provided that includes a first end cap, a second end cap, a helical spring, and a locking post. The second end cap is opposite the first end cap. The helical spring extends between the first and second end caps. The locking post is disposed inside the helical spring between the first and second end caps. The locking post allows limited compression of the helical spring and prevents extension of the helical spring beyond a set point.
Abstract:
An aircraft electric taxi system diagnostics and prognostics evaluation method, including receiving, with a computer, an electronically recorded first performance parameter of a first electric taxi system of a first aircraft during a taxi operational event at an airport; and comparing the first performance parameter with a first performance factor statistical model generated in response to the first performance parameter and first comparative performance parameters; and calculating a first performance parameter difference based on the comparison.
Abstract:
An aircraft taxi control system may include a left main gear (MG) drive motor, a right MG motor, a first motor drive controller configured to produce a left motor torque signal responsively to nose gear angle (NGA) and nose wheel speed (NGS), and a second motor drive controller configured to produce a right motor toque signal responsively to the NGA and the NGS. The left motor torque signal and the right motor torque signal may be coordinated to reduce lateral loading of the nose wheel during a turning maneuver.
Abstract:
An aircraft electric taxi system diagnostics and prognostics evaluation method, including receiving, with a computer, an electronically recorded first performance parameter of a first electric taxi system of a first aircraft during a taxi operational event at an airport; and comparing the first performance parameter with a first performance factor statistical model generated in response to the first performance parameter and first comparative performance parameters; and calculating a first performance parameter difference based on the comparison.