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486 terms found
A missile fired from an aircraft to destroy another aircraft.
“Fighter jets carry AAMs for air combat missions.”
The process of transferring fuel from one aircraft to another during flight.
“Military aircraft use AAR to extend their operational range.”
Controlled burning away of heat shield material during atmospheric reentry.
“Ablation shields protect spacecraft from extreme heating during Earth reentry.”
The maximum altitude an aircraft can reach under standard atmospheric conditions.
“At absolute ceiling, the aircraft can no longer climb.”
Digital datalink system for transmission of short messages between aircraft and ground stations.
“ACARS automatically transmits flight data and maintenance information to airline operations centers.”
Aircraft system designed to reduce the incidence of mid-air collisions between aircraft.
“ACAS provides traffic advisories and resolution advisories to pilots.”
Mandatory instructions issued by aviation authorities to address unsafe conditions.
“AD compliance is mandatory to maintain aircraft airworthiness.”
System that controls the orientation of a spacecraft in space using sensors and actuators.
“The ADCS keeps the spacecraft properly oriented toward Earth for communications.”
A radio navigation instrument that automatically points to a tuned radio beacon.
“ADF helps pilots navigate toward NDB stations.”
Surveillance technology where aircraft determine their position and broadcast it periodically.
“ADS-B enables more precise aircraft tracking for air traffic control.”
Intentional aircraft maneuvers involving unusual attitudes not used in normal flight.
“Aerobatics competitions showcase pilot skill in performing precise aerial maneuvers.”
A type of phased array radar with active transmit/receive modules.
“Modern fighter aircraft use AESA radars for superior tracking capabilities.”
An integrated system that automatically controls aircraft flight path, altitude, and attitude.
“The AFCS maintains precise flight parameters during instrument approaches.”
Additional combustion chamber that injects fuel into jet exhaust for extra thrust.
“Fighter jets use afterburners for rapid acceleration and supersonic flight.”
A missile designed to be launched from aircraft to attack ground targets.
“AGMs provide precision strike capability against surface targets.”
System that provides 3D orientation information using gyroscopes, accelerometers, and magnetometers.
“AHRS provides reliable attitude information for flight displays.”
A professional society for the field of aerospace engineering.
“AIAA publishes research papers on aerospace engineering topics.”
A hinged flight control surface attached to the trailing edge of each wing used to control roll.
“The pilot uses ailerons to bank the aircraft left or right.”
Weather advisory concerning weather phenomena of lower intensity than SIGMET.
“AIRMET advisories inform pilots of moderate weather hazards.”
An instrument that measures and indicates altitude based on atmospheric pressure.
“Pilots rely on the altimeter to maintain proper flight altitude.”
Technical documentation providing maintenance procedures and instructions.
“AMM contains detailed procedures for aircraft maintenance tasks.”
The downward angle of aircraft wings when viewed from the front or rear.
“Some aircraft use anhedral to reduce excessive lateral stability.”
The process of preventing ice formation on aircraft surfaces during flight.
“Anti-icing systems protect critical surfaces like wings and engine inlets.”
The angle between the chord line of an airfoil and the relative wind direction.
“Increasing the AOA can increase lift up to the stall point.”
An aircraft that cannot be operated due to technical problems or maintenance requirements.
“AOG situations require immediate attention to minimize operational disruption.”
The point in an elliptical orbit where an object is farthest from the body it is orbiting.
“The satellite reaches its apogee of 35,786 kilometers above Earth in geostationary orbit.”
Final phase of flight where aircraft descends and aligns for landing at airport.
“Pilots execute precision approaches using electronic guidance for safe runway alignment.”
A device that provides energy for functions other than propulsion when the main engines are not running.
“The APU provides electrical power and air conditioning when the aircraft is parked.”
The ratio of the wingspan to the mean chord of a wing, or the ratio of wingspan squared to wing area.
“High AR wings are more efficient but may have structural challenges.”
An instrument that displays aircraft attitude relative to the horizon.
“The artificial horizon shows whether the aircraft is climbing, descending, or banking.”
International quality management system standard specifically for the aerospace industry.
“Aerospace suppliers must maintain AS9100 certification.”
Organization that develops technical standards for materials and testing.
“ASTM standards ensure consistent material properties in aerospace applications.”
A service provided to direct aircraft on the ground and through controlled airspace.
“ATC coordinates aircraft movements to ensure safe separation.”
A continuous broadcast of recorded non-control information at busy airports.
“Pilots listen to ATIS before contacting approach control for current airport information.”
Automated system that applies wheel brakes during aircraft landing roll.
“Autobrake systems provide consistent deceleration rates for precise landing performance.”
An automated landing system that guides aircraft to touchdown without pilot control.
“Autoland systems are essential for landing in zero visibility conditions.”
Automated system that controls engine power to maintain selected airspeeds or thrust settings.
“Autothrust reduces pilot workload during critical phases of flight.”
An airborne radar system designed to detect aircraft, ships, and ground vehicles at long ranges.
“AWACS aircraft provide surveillance and command capabilities for military operations.”
Weight added to aircraft to achieve proper center of gravity balance.
“Ballast may be required when flying with reduced passenger or cargo loads.”
Flight path determined solely by initial velocity and gravitational forces.
“Ballistic missiles follow predictable trajectories after engine shutdown.”
Flight path perpendicular to runway direction in airport traffic pattern.
“Pilots turn from base leg to final approach for runway alignment.”
Angular direction from one point to another, typically measured from north.
“The pilot flew a bearing of 090 degrees to reach the destination airport.”
A Chinese satellite navigation system consisting of two separate satellite constellations.
“BeiDou provides navigation services across Asia-Pacific region.”
Automated self-testing capabilities of aircraft systems and components.
“BIT functions help identify system failures during operation.”
Automated testing capabilities integrated into aircraft systems.
“BITE systems automatically detect and report system malfunctions.”
The layer of fluid in the immediate vicinity of a bounding surface where viscous effects are significant.
“Understanding BL behavior is crucial for drag reduction.”
Protective barrier deflecting jet exhaust away from aircraft and ground equipment.
“Blast fences protect nearby aircraft from high-velocity exhaust during engine runs.”
Additional rocket stage providing extra thrust for launch or orbital maneuvers.
“Solid rocket boosters provide initial thrust for Space Shuttle launches.”
Vibration of an aircraft structure caused by turbulent airflow.
“Buffet onset warns pilots of approaching stall conditions.”
Structural partition separating compartments within aircraft fuselage.
“Pressure bulkheads maintain cabin integrity during pressurized flight operations.”
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