The Boeing Company

Mark R Morel

Douglas Wilson

Tristan C Flanzer

David W Grubb

Neil Zimmer

A machine and process for control of rotation of a vehicle about an axis of the vehicle is shown. A flight control system includes control laws that control the rotation of the vehicle around the axis of the vehicle. An estimate is derived for an inertia about the axis. The estimated inertia is derived from sensed quantities of material in a component of the vehicle. An inertia gain schedule and filter are added to enhance, using the estimated inertia, the accuracy of the control laws that control the rotation of the vehicle around the axis of the vehicle.

Machine and process for rotating a vehicle

Systems and methods are provided for a roll attitude dependent roll rate limit that may limit an aircraft to a lower roll rate limit under normal flight conditions. The systems and methods may detect situations where a higher roll rate limit may be desirable and allow the aircraft to exceed the lower roll rate limit, to either a higher roll rate limit or a roll rate between the lower and higher roll rate limit.

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Edmonds, WA, United States of America

Mark R Morel