10 Questions
What are the two independent dual channel position resolvers used for in the Horizontal Stabilizer System?
The two independent dual channel position resolvers provide feedback to the Horizontal Stabilizer Control Unit (HSCU) on the position of the Horizontal Stabilizer Trim Actuator (HSTA).
Where are the two horizontal stabilizer position resolvers located on the aircraft?
The two horizontal stabilizer position resolvers are located on the HSTA. One resolver is mounted at the ballscrew (primary load path) and provides feedback to channel 2 of the HSCU, while the other is mounted to the secondary load path and provides feedback to channel 1 of the HSCU.
What are the two HSCU channels and what do they receive data from?
Channel 1 of the HSCU receives data from a resolver geared to the secondary load path, while channel 2 receives data from a resolver geared to the primary load path.
What is the purpose of the horizontal stabilizer position resolvers in the Horizontal Stabilizer System?
The purpose of the horizontal stabilizer position resolvers is to provide feedback to the Horizontal Stabilizer Control Unit (HSCU) on the position of the Horizontal Stabilizer Trim Actuator (HSTA).
Describe the relationship between the HSCU channels and the resolvers in the Horizontal Stabilizer System.
Channel 1 of the HSCU receives data from a resolver geared to the secondary load path, while channel 2 receives data from a resolver geared to the primary load path. The resolvers are independent, dual channel, brushless resolvers that provide HSTA position feedback to the corresponding HSCU channels.
What is the purpose of the circuit breakers listed in the table?
The circuit breakers listed are used to protect the system by providing power to the different components.
What is the significance of the Stabilizer Rigging Complete message?
The Stabilizer Rigging Complete message indicates that the rigging of the horizontal stabilizer is valid for the current aircraft and no further action is required.
What is the purpose of the Stabilizer Maintenance Required message?
The Stabilizer Maintenance Required message indicates that the HSCU has flagged a maintenance item, but the system redundancy has not been lost.
What is the recommended action when the Stabilizer Failed message is displayed?
If the flight control system is in normal mode, the PITCH trim switch on the control wheel can be used to adjust the elevator trim position.
What is the significance of the Stabilizer Channel Fail message?
The Stabilizer Channel Fail message indicates that a horizontal stabilizer control channel has failed, and maintenance should be notified for corrective action. The PITCH trim switch on the control wheel will be inoperative, and the backup PITCH trim switch on the trim control module should be used.
Test your knowledge on the description and functioning of the horizontal stabilizer system sensors in the Gulfstream G650ER aircraft. Learn about the feedback provided to the Horizontal Stabilizer Control Unit (HSCU) and the position data for the Horizontal Stabilizer Trim Actuator (HSTA).
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