ADVANTAGES OF FLY BY WIRE by AIRBUS

Airbus is the first to introduce the fly by wire concept in its A320.
The transformation is a planned gradual move from the traditional mechanical cable linkage to control surfaces to present total fly by wire aircraft.

It offers the following main advantages:
1. Performance - as it is an electronic system, the pilots feels and the aircraft responses can be adjusted to a specific performance. Thus aircraft of the same family may be made to feel and behave the same. This eliminate or reduces the hours of crew training.

2. Safety - the active control of the system will ensure that the aircraft operates within a give envelope. For example the bank angle may be limited to specific figure such as 33 degree. So is the pitch angle.

3. Maintenance - It reduces the rigging and adjustment as required by the mechanical cables.

I include the original Airbus pages..
http++://www.airbus.com/innovation/proven-concepts/in-operations/fly-by-wire/

GROUNDBREAKING INNOVATION

A key element of Airbus’ continued innovation is the application of digital fly-by-wire technology – which brings improved handling, enhanced safety and operational commonality to its product line of modern jetliners.

Introduced into civil aviation with Airbus’ single-aisle A320, fly-by-wire technology has allowed the company to develop a true family of aircraft through the highest degree of operational commonality, featuring nearly identical cockpit designs and handling characteristics.

SAFETY AND PERFORMANCE

Overall safety is increased with the use of fly-by-wire, which provides direct input through electrical signals for more precise commands. In addition, the control system monitors pilot commands to ensure the aircraft is kept within a safety margin called the “flight protection envelope.” As a result, pilots always can get the maximum performance out of Airbus aircraft without running the risk of exceeding these limits.

The use of fly-by-wire technology provides a number of operational advantages for Airbus aircraft, including higher precision during flight and lower maintenance costs.

OPERATIONAL BENEFITS

Operators benefit greatly from this key innovation, which allows for simplified crew training and conversion. In addition, pilots are able to stay current on more than one aircraft type simultaneously without supplementary takeoff/landing requirements, recurrent training and annual checks.

The weight savings from the replacement of heavy mechanical control cables provides a significant reduction in fuel consumption. As electrical controls are less complex and easier to maintain than mechanical ones, the use of fly-by-wire also translates to lower maintenance costs for operators.