2号全压探头
Sensor measuring total (pitot) pressure at engine station 2 for air data and engine control systems.
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Aircraft Systems
Browse Aircraft Systems terms for pilots, air traffic controllers, cabin crew and aviation learners.
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APU自动启动序列
A programmed series of actions by which the auxiliary power unit starts automatically and safely without crew intervention.
View termS模式应答机
An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.
View term主警告系统
A central alerting system that warns the flight crew of abnormal but non-critical system status via lights and aural tones.
View term主飞行显示器
The main instrument display showing attitude, speed, altitude, heading, and flight director information.
View term主飞行计算机
The Boeing main computer responsible for integrating pilot inputs, aircraft data, and actuating control surfaces.
View term交通防撞系统
An airborne safety system providing pilots with traffic advisories and resolution advisories to avoid mid-air collisions.
View term仪表着陆系统
A precision approach system providing lateral and vertical guidance to aircraft during landing using radio signals.
View term低压转子转速
Rotational speed of the low-pressure compressor or fan in a jet engine, often indicated as N₁.
View term偏航阻尼系统
An automatic system that prevents unwanted yaw oscillations by commanding the rudder, increasing flight comfort and stability.
View term全权限数字发动机控制
An electronic system that provides complete automated control of all engine parameters for optimum performance.
View term全球导航卫星系统
A system of satellites providing worldwide navigation, including GPS, GLONASS, Galileo, and BeiDou.
View term冲压空气涡轮
A small turbine deployed in flight to provide emergency hydraulic or electrical power using airflow.
View term减小垂直间隔
A set of airspace procedures allowing aircraft to be separated by 1,000 feet vertically above FL290, increasing airspace capacity.
View term减速板操纵杆
A cockpit control that arms or actuates spoiler panels to reduce speed or rate of descent during flight and landing roll.
View term刹车温度监控器
A cockpit display or system that monitors the temperature of the main landing-gear brakes to prevent overheating.
View term前起落架转向
The system that allows pilots to steer the aircraft’s nose landing gear during taxi and ground operations.
View term副翼襟翼
A combined flight control surface that functions as both aileron and flap, used on some aircraft to improve control and lift.
View term副翼配平
A flight-control adjustment that sets ailerons to correct lateral imbalance and maintain wings-level flight.
View term动力转换单元
A hydraulic unit that enables power transfer between two separate hydraulic systems without mixing their fluids.
View term升降舵-副翼计算机
A dedicated computer on Airbus aircraft that processes inputs and controls elevator and aileron surfaces.
View term升降舵动力控制装置
A hydraulic actuator that converts hydraulic pressure into elevator movement, enabling pitch control of the aircraft.
View term卫星通信
A long-range communication system using satellites, enabling cockpit and company contact beyond VHF and HF range.
View term反推装置
A device used to redirect engine thrust forward to assist with deceleration after landing.
View term发动机仪表显示
The cockpit display panel showing all vital engine parameters, including N1/N2, temperature, oil pressure, fuel flow, and vibrations.
View term发动机压力比
Ratio of total pressure at the engine exhaust to that at the engine inlet, used as a primary engine thrust indicator.
View term发动机指示与机组警告系统
A Boeing system that displays engine and system data and alerts for operational and abnormal conditions.
View term发动机油压
The pressure of oil circulating through an aircraft engine, essential for lubrication and cooling of moving components.
View term发动机防冰
A system that prevents or removes ice formation on engine inlets, typically using hot bleed air.
View term发电机控制单元
Electronic module that manages and protects an aircraft generator, monitoring voltage, current, and system faults.
View term可变导向叶片
Adjustable compressor guide vanes that control airflow angle and optimize engine efficiency across operating conditions.
View term可变放气阀
Adjustable engine valves that regulate bleed air extraction to maintain compressor stability and prevent stall.
View term地形感知与警告系统
Advanced system alerting pilots of hazardous terrain or obstacles using GPS and a terrain database, supplementing GPWS.
View term地面扰流板
Spoiler panels on the wings that fully deploy upon landing to disrupt lift and aid in braking and deceleration.
View term备用起落架放下
A backup method to deploy the landing gear using gravity, hydraulic, or manual means if the normal extension system fails.
View term外界空气温度
The temperature of the air outside the aircraft, used in performance and anti-ice calculations.
View term安全活门
A valve designed to automatically relieve excess pressure or vacuum to protect the aircraft structure.
View term客舱内部通信系统
An integrated system enabling voice communication between cabin crew and cockpit, and among crew stations.
View term客舱压力控制器
Automatic device that regulates cabin altitude and rate of pressure change by controlling the outflow valve.
View term导航显示器
Electronic display showing route, waypoints, navigation aids, weather, and traffic information.
View term平均海平面
An altitude or elevation reference based on the average sea level used as a standard for aviation altimetry.
View term应答机控制面板
Cockpit panel used for selecting, setting, and controlling aircraft transponder modes and codes.
View term引气
High-pressure air extracted from an aircraft engine's compressor stage and used for environmental control, pressurization, anti-ice, and pneumatic systems.
View term引气中断
Automatic closure of bleed air supply due to over-temperature or over-pressure, protecting the system from damage.
View term引气超压
A condition where the bleed air pressure exceeds safe limits, causing automatic shutdown or system warnings.
View term循环风扇
A fan that recirculates cabin air, mixing it with conditioned air to improve efficiency and reduce bleed air demand.
View term微调空气
A system that adds small amounts of hot bleed air to the mixed supply to fine-tune cabin temperature zones.
View term总空气温度探头
A sensor on the aircraft that measures total air temperature, providing critical input for engine and air-data systems.
View term恒速传动装置
A transmission device that converts variable engine speed to a constant speed for generator operation.
View term惯性参考单元
An aircraft system providing position and attitude data by processing gyroscopic and accelerometer inputs.
View term惯性导航系统
A self-contained navigation system using accelerometers and gyros to compute aircraft position, independent of external signals.
View term所需导航性能
A set of precision standards for aircraft navigation accuracy, integrity, and reliability within defined airspace or procedures.
View term执行器控制电子系统
Boeing system managing flight control actuator signals for surface movement, including redundancy and fault isolation.
View term扰流板-升降舵计算机
An Airbus computer managing spoilers, elevator backup, and other flight control surfaces for redundancy and flight envelope protection.
View term扰流板面
A hinged surface on the upper wing that disrupts airflow, reducing lift and increasing drag for roll control or descent.
View term排气活门
A valve that regulates the discharge of air from the pressurized cabin to maintain desired cabin pressure.
View term排气温度
The temperature of gases emitted by the engine exhaust, critical for monitoring engine health and performance.
View term推力杆角度
The position or angle of the thrust lever, directly corresponding to engine power demand.
View term方向舵配平
A flight-control adjustment that offsets rudder position to maintain coordinated flight and correct for yaw.
View term无定向信标
A ground-based radio transmitter used for navigation, providing direction by reference only.
View term最低设备清单
An official list of equipment required for safe operation of an aircraft, specifying items which may be inoperative under specific conditions.
View term机翼防冰
A system that prevents or removes ice accumulation on the wing leading edges using bleed air or electrical elements.
View term水平安定面配平
The adjustment of the horizontal stabilizer angle to balance the aircraft in pitch for all flight phases.
View term测距设备
An aircraft navigation system providing slant-range distance to a ground station, often paired with VOR or ILS.
View term液压油箱
A tank storing hydraulic fluid for aircraft hydraulic systems, ensuring continuous supply during all phases of operation.
View term液压泵
A device that moves hydraulic fluid under pressure to operate aircraft systems such as landing gear, brakes, and flight controls.
View term液压蓄能器
A pressurized storage device that maintains hydraulic pressure and absorbs system shocks.
View term混合单元
A component that blends recirculated cabin air with conditioned air from the packs before distribution.
View term火灾探测回路
A continuous sensing circuit that detects overheat or fire in aircraft engines, APU, or cargo bays.
View term灭火瓶
A pressurized container storing extinguishing agent for aircraft fire suppression in engines, cargo, or APU compartments.
View term爆炸药引信
A small pyrotechnic device used to rapidly release fire-extinguishing agent by rupturing a fire bottle seal.
View term甚高频全向信标
A ground-based radio navigation system providing azimuth guidance to aircraft using VHF signals.
View term甚高频无线电
Radio system in the VHF band (118–137 MHz) used for primary ATC voice communication within line-of-sight range.
View term电传操纵系统
An electronic flight control system where pilot inputs are transmitted as electrical signals to computers, which command the flight control surfaces.
View term电子断路器
A digitally controlled switch that protects an electrical circuit from overload by interrupting power supply electronically.
View term电子转向系统
A digital control system where electronic signals, not mechanical linkages, direct the nose-gear steering.
View term电子集中飞机监控器
An Airbus system that displays engine, system, and alert messages for aircraft monitoring and troubleshooting.
View term皮托管
A forward-facing tube that measures dynamic air pressure, providing critical input for airspeed indication.
View term空调组件
Air conditioning and pressurization units that cool, condition, and regulate the flow of air into the cabin using bleed air.
View term空速-惯性参考单元
An advanced aircraft system combining air data sensors and inertial reference to provide navigation and performance data.
View term空速数据参考
Aircraft module collecting and providing airspeed, altitude, and temperature data from external probes.
View term管制员–飞行员数据链通信
A digital communication system enabling direct text-based exchanges between ATC and pilots via data link instead of voice.
View term系统综览显示
A cockpit display providing a schematic overview of aircraft systems’ status, such as hydraulics, electrics, fuel, and air conditioning.
View term组件阀门
A valve that regulates the flow of bleed air into the air conditioning pack.
View term综合驱动发电机
A generator that converts variable engine speed to constant frequency AC power for aircraft electrical systems.
View term绿色液压系统
One of three independent hydraulic systems on Airbus aircraft, powering primary flight controls, landing gear, and other components.
View term自动刹车系统
A system that automatically applies braking at a selected rate during landing or rejected take-off to optimize stopping distance.
View term自动油门系统
A system that automatically sets and maintains engine thrust based on flight parameters and autopilot commands.
View term自动相关监视广播
A surveillance technology in which aircraft broadcast position and flight data, allowing real-time tracking by ATC and other aircraft.
View term航电风扇
A fan dedicated to cooling avionics equipment by circulating air through the electronics bay.
View term航空电子冷却系统
A system providing airflow and temperature regulation to prevent overheating of aircraft avionics components.
View term蓝色液压系统
One of three Airbus hydraulic systems, providing redundancy for flight controls, landing gear, and other powered components.
View term跑道视程
The distance over which a pilot of an aircraft on the centre line of a runway can see the runway surface markings or lights.
View term辅助动力装置
A self-contained turbine engine providing electrical and pneumatic power to the aircraft while on the ground or as backup in flight.
View term近地警告系统
An aircraft safety system that warns pilots if the aircraft is at risk of controlled flight into terrain or obstacles.
View term金属屑探测器
A sensor in an engine or gearbox that detects metallic particles, indicating wear or damage to internal components.
View term静压口
An external opening on an aircraft that senses ambient atmospheric pressure for use by the pitot-static system.
View term飞控液压回路
Hydraulic circuit dedicated to supplying pressure to flight control surfaces such as ailerons, elevators, and rudder.
View term飞行增强计算机
A system on Airbus aircraft that provides additional functions such as yaw damping, rudder trim, and flight envelope protection.
View term飞行指引杆
Visual cues on the Primary Flight Display indicating desired pitch and roll to guide manual flight path.
View term飞行管理系统
An avionics system integrating navigation, performance, and flight planning for automated aircraft operation.
View term飞行警告计算机
A system that processes and displays warnings and cautions to the flight crew in response to abnormal conditions.
View term马赫配平系统
A system that compensates for Mach tuck by automatically adjusting stabilizer trim at high subsonic speeds.
View term高于地面
An altitude or height measured with reference to the underlying ground surface directly beneath the aircraft.
View term高压转子转速
Rotational speed of the high-pressure compressor or core in a jet engine, commonly indicated as N₂.
View term高频无线电
Radio system operating in the HF band (3–30 MHz), enabling long-distance voice communication between aircraft and ATC.
View term黄色液压系统
One of three independent hydraulic systems on Airbus aircraft, supplying power to specific flight controls, brakes, and cargo doors.
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