The Boeing Company

Leonard J Inderhees

Sherwin Chunshek Li

Robert Erik Freeman

Neal Van Huynh

Douglas Wilson

Kent Edmund Karnofski

David Paul Eggold

Mark H Smith

Christopher M Hodges

Ryan L Pettit

Heidi M Haugeberg

Paul Jay Cline

Russell Tanner Bridgewater

Nikos D Mills

Munior Orgun

Alexander Craig Oleson

Steven Beland

Rostyslav Oleksiy Svitelskyi

William Tyler Piersol

Bryan A Lopez

Russell T Bridgewater

Melville D W Mcintyre

Nikos Mills

A system and a method include air data sensors configured to detect one more characteristics of air surrounding an aircraft. At least three of the air data sensors differ in type. The air data sensors are configured to output air data. A flight control unit is in communication with the air data sensors. The flight control unit is configured to receive the air data from the air data sensors and control at least one aspect of the aircraft based on at least a portion of the air data. In at least one example, the flight control unit is further configured to vote in relation to the air data from the air data sensors.

Systems and methods for controlling an aircraft using dissimilar air data

An example system includes a common mode pneumatic event detector to detect a common mode pneumatic event at pitot tubes of an aircraft, a latch, a relay switch in communication with the latch, and a latch controller to set the latch in a first state to cause the latch to output a first latch signal, the relay switch to output a first pressure signal in response to the first latch signal, the first pressure signal based on pressure data from the pitot tubes, and set the latch in a second state to cause the latch to output a second latch signal based on the detection of the common mode pneumatic event. The relay switch is to output a second pressure signal in response to the second latch signal. The second pressure signal includes estimated pressure data.

Apparatus, systems, and methods for managing common mode pneumatic events

In an example, method of controlling thrust produced by a plurality of engines on an aircraft for assisting with nose-down recovery of the aircraft is described. The method includes selecting a maximum value of an aircraft parameter, measuring a value of the aircraft parameter while the aircraft is in flight, based on a comparison of the maximum value and the measured value determining that the measured value exceeds the maximum value, and reducing a thrust produced by each of the engines of the plurality of engines to bring the measured value of the aircraft parameter below the maximum value of the aircraft parameter.

Methods and systems for controlling thrust produced by a plurality of engines on an aircraft for assisting with certain flight conditions

A reliably redundant PCU for an aircraft. The PCU includes an override mechanism coupled to the aircraft's control path and a first control member coupled to the override mechanism whereby the override mechanism attempts to transmit a command from the command path to the first control member. The unit also includes a second control member coupled to the control path whereby the command path transmits the command to the second control member. Additionally, the PCU includes two actuator members coupled to the control members whereby the actuator members attempt to move in response to the command. If the first control member resists moving the override mechanism allows the second control member to actuate the rudder. The PCU also includes a common actuator coupled to the actuator members and the control surface, whereby the actuator moves the control surface. Moreover, a unitary housing contains the first and the second actuator members.

Enhanced rudder control system

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Snohomish, WA, United States of America

Leonard J Inderhees