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The fly-by-wire electronic flight control system of the Boeing 777 differs from the Airbus EFCS. The design principle is to provide a system that responds similarly to a mechanically controlled system. [10] Because the system is controlled electronically, the flight control system can provide flight envelope protection.
The Airbus A320 family was the first airliner to feature a full glass cockpit and digital fly-by-wire flight control system. The only analogue instruments were the radio magnetic indicator, brake pressure indicator, standby altimeter and artificial horizon, the latter two being replaced by a digital integrated standby instrument system in later production models.
The 777 became the first Boeing airliner to use fly-by-wire controls and to apply a carbon composite structure in the tailplanes. The original 777 with a maximum takeoff weight (MTOW) of 545,000–660,000 lb (247–299 t) was produced in two fuselage lengths: the initial 777-200 was followed by the extended-range -200ER in 1997; and the 33.25 ...
Honeywell's (HON) latest compact "fly-by-wire" system offers stability to automated aircraft designs by adjusting flight surfaces and motors, and controlling electric actuators.
One example of such a flight envelope protection device is an anti-stall system which is designed to prevent an aircraft from stalling, [7] for example in the form of a stick pusher that pushes the aircraft nose downward based on an input signal from a stall warning system, [8] or by means of other fly-by-wire actions. Anti-stall systems are ...
A fly-by-wire (FBW) system replaces manual flight control of an aircraft with an electronic interface. The movements of flight controls are converted to electronic signals transmitted by wires (hence the term fly-by-wire), and flight control computers determine how to move the actuators at each control surface to provide the expected response ...
After NASA purchased the aircraft in 1994 to replace its 737-100 testbed, [55] [163] it was initially used to evaluate a hybrid laminar flow control system, avionics systems for the proposed Northrop YF-23 jet fighter, and the 777's fly-by-wire control system. [55]
AFDX was developed by Airbus Industries for the A380, [3] [4] initially to address real-time issues for flight-by-wire system development. [5] Multiple switches can be bridged together in a cascaded star topology. This type of network can significantly reduce wire runs, thus the weight of the aircraft.