What is FADEC and EEC?

FADEC is a system consisting of a digital computer, called an electronic engine controller (EEC) or engine control unit (ECU), and its related accessories that control all aspects of aircraft engine performance.

Does Boeing use FADEC?

The “FADEC 3” design that will underpin the GEnx control is currently in use on GE90-115B, CF6, and CFM56 engines. It also controls the GP7200 being developed by the GE-Pratt and Whitney Engine Alliance joint venture for the Airbus A380.

What is a partial authority system?

The autonomous partial-authority flight control system provides a fully stabilized path-following capability that is directed with a series of waypoints or flight-path vector commands.

Who invented FADEC?

In the 1970s, NASA and Pratt and Whitney experimented with their first experimental FADEC, first flown on an F-111 fitted with a highly modified Pratt & Whitney TF30 left engine.

What subsystems may be controlled by a FADEC EEC?

The EEC also controls several other subsystems of the engine, as shown in Figure 2-56, through torque motors and solenoids, such as fuel and air oil coolers, bleed valves, variable stator vanes, turbine cooling air valves, and the turbine case cooling system. Figure 2-55.

What happens when FADEC fails?

If the FADEC fails, the engine fails. FADEC combines throttle, propeller, and mixture controls into a single control. Every throttle setting at any altitude results in the optimum power/propeller revolution per minute or RPM/mixture combination.

How is the FADEC powered?

The FADEC system is self-powered by a dedicated permanent magnet alter- nator when N2 is above 15\%, and is powered by the aircraft for starting, as a backup and for testing with engine not running.

How much does a FADEC cost?

Continental estimates the cost for retrofitting a FADEC system will be between $2,500 and $7,500, depending on engine and aircraft type. FADEC has the potential of bringing a whole new perspective to piston-engine flying.

What is the function of ECAM?

Electronic Centralized Aircraft Monitor (ECAM) is defined as is a system on Airbus aircraft for monitoring and displaying engine and aircraft system information to the pilots. In the event of a malfunction, it will display the fault and may also display the appropriate steps of the remedial action.

What is a CAS message?

The crew-alerting system (CAS) is used in place of the annunciator panel on older systems. Rather than signaling a system failure by turning on a light behind a translucent button, failures are shown as a list of messages in a small window near the other EICAS indications.

What does FADEC stand for and what does it do?

Full Authority Digital Engine Control
Full Authority Digital Engine Control (FADEC) means just that. There is no direct pilot control over the engine or manual control mode. If the FADEC fails, the engine fails. However, system redundancy makes it much less likely for a FADEC system to fail than a traditional magneto system.

What does FADEC mean in aviation?

FADEC stands for Full Authority Digital Engine Control. FADEC electronically monitors and adjust the engines for proper and smooth operation. So instead of the pilot manually adjusting the mixture and throttle controls, the pilot is left with single-lever control for all phases of flight.

What is a full authority digital engine control (FADEC)?

] A full authority digital engine (or electronics) control (FADEC) is a system consisting of a digital computer, called an “electronic engine controller” (EEC) or ” engine control unit ” (ECU), and its related accessories that control all aspects of aircraft engine performance.

What engines use FADEC?

The newest FADEC currently in service – on the LEAP and Passport 20 engines – were produced and developed to serve in the Airbus 320neo, Boeing 737 MAX, and Bombardier Global 7000/8000. It is also slated to control the COMAC C919 upon its introduction.

What are the disadvantages of the FADEC system?

Disadvantages of FADEC system. 1. Full authority digital engine controls have no form of manual override available, placing full authority over the operating parameters of the engine in the hands of the computer.