According to the needs of airlines, Boeing 777 cockpit display adopts a horizontal layout similar to 747-400. Main flight, navigation and engine information are displayed on six large display screens.
Although the functions of these displays are similar to those of traditional cathode ray tube (CRT) displays, they are only half as thick as CRT displays due to advanced liquid crystal display (LCD) technology. In addition to saving space, the new monitor is lighter and consumes less power, which helps to improve reliability and prolong service life. At the same time, because less heat is generated, there is no need to use bulky and complicated air conditioning equipment to cool the instrument. The pilot reported that the new display can still be clearly displayed in all kinds of conditions, even in direct sunlight.
Three multifunctional control and display devices (CDU) installed on the central console provide data display and information input functions for flight management, and are the main interfaces of the Integrated Aircraft Information Management System (AIMS). These monitors have changed their colors according to market requirements. Adding colors can make pilots read information faster.
Aircraft information management system provides flight and maintenance personnel with information about the general situation, maintenance requirements and main operating functions of aircraft, such as flight, thrust and communication.
Through the fly-by-wire control system, the pilot will enhance the control instructions through the computer and directly transmit them to the hydraulic actuators on the control surfaces such as elevators, rudders and ailerons. Compared with the traditional wire rope mechanical system, this three-axis fly-by-wire control system can reduce the weight, simplify the assembly procedure, reduce spare parts and reduce the maintenance workload of airlines.
The key of Boeing 777 system is ARINC629 bidirectional digital data bus, which is a patented product of Boeing Company and has been regarded as a new industrial standard. It uses twisted-pair wires to connect various systems of aircraft with computers. This further simplifies installation, reduces weight, and improves reliability by reducing the number of wires and connectors. There are 1 1 ARINC629 channels on Boeing 777.
Boeing 777 is the first Boeing aircraft to use EGPWS as standard equipment instead of optional equipment. The enhanced near-ground warning system can display the terrain that may pose a threat to the aircraft and give an audible warning 1 minute before the possible collision. The previous equipment can only give an alarm 10- 15 seconds in advance. In this system, there is a digital topographic map, which is constantly compared with the aircraft position displayed by the navigation system, further improving flight safety.
The cockpit of Boeing 777-300ER and 777-300 is equipped with a ground moving camera system (GMCS), which can display images of the front landing gear and the main landing gear, thus helping pilots to operate Boeing 777-300 on the ground. Cameras are located at the front edges of the left and right horizontal stabilizers and under the fuselage, and are used for aircraft ground control. Images are displayed on the multi-function display in the cockpit in three different ways.