ACARS
Aircraft Communications Addressing and Reporting System (ACARS) is a digital data link system transmitted in the VHF range (129 MHz to 137 MHz). ACARS provides a means by which aircraft…
ADIRS
The air data inertial reference system (ADIRS) has two primary functions: Air data reference (ADR)Inertial reference (IR) The ADR function calculates: Airspeed, andBarometric altitude The IR function calculates this data:…
Aircraft Zoning
The zoning of large aircraft is specified by the Airline for America (A4A) in the ATA-100 Specification. These large areas or major zones are further divided into sequentially numbered zones…
Flight Control Surfaces
For an aircraft to reach its destination, the forces of flight have to be precisely manipulated. To do this, aircraft have control surfaces that can direct airflow in very specific…
EICAS
The Engine Indication and Crew Alerting System (EICAS) is designed by Boeing to provide all engine instrumentation and crew annunciations in an integrated format. The equivalent system on Airbus aircraft…
Servomechanism
A servomechanism is a force amplifier mechanism where the output accurately follows the input but with greater power. Movement can be linear or rotary. if the output is controlled by…
Flight Management System
Modern Flight Management System (FMS) provides advanced flight planning and navigation capability. Flight Management System (FMS) requires four main elements: Flight Management Computer (FMC)Display System (could be existing EFIS)Data Base…
Satellite Navigation
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geo-spatial positioning. A satellite navigation system with global coverage may be termed a global navigation…
Aircraft Static Discharge
Aircraft flying in clouds or precipitation will accumulate electrical charges due to frictional contact with liquid or other solid particles in the atmosphere. These charges cause interference in radio communication…