APU自動始動シーケンス
A programmed series of actions by which the auxiliary power unit starts automatically and safely without crew intervention.
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Aircraft Systems
Browse Aircraft Systems terms for pilots, air traffic controllers, cabin crew and aviation learners.
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VHF全方向式無線標識
A ground-based radio navigation system providing azimuth guidance to aircraft using VHF signals.
View termアウトフローバルブ
A valve that regulates the discharge of air from the pressurized cabin to maintain desired cabin pressure.
View termアクチュエータ制御エレクトロニクス
Boeing system managing flight control actuator signals for surface movement, including redundancy and fault isolation.
View termアビオニクスファン
A fan dedicated to cooling avionics equipment by circulating air through the electronics bay.
View termアビオニクス冷却システム
A system providing airflow and temperature regulation to prevent overheating of aircraft avionics components.
View termイエロー油圧系統
One of three independent hydraulic systems on Airbus aircraft, supplying power to specific flight controls, brakes, and cargo doors.
View termインテグレーテッドドライブジェネレーター
A generator that converts variable engine speed to constant frequency AC power for aircraft electrical systems.
View termウイングアンチアイス
A system that prevents or removes ice accumulation on the wing leading edges using bleed air or electrical elements.
View termエアデータ・イナーシャル・リファレンス・ユニット
An advanced aircraft system combining air data sensors and inertial reference to provide navigation and performance data.
View termエアデータ・リファレンス
Aircraft module collecting and providing airspeed, altitude, and temperature data from external probes.
View termエルロントリム
A flight-control adjustment that sets ailerons to correct lateral imbalance and maintain wings-level flight.
View termエレベーターパワーコントロールユニット
A hydraulic actuator that converts hydraulic pressure into elevator movement, enabling pitch control of the aircraft.
View termエレベーター・エルロン・コンピュータ
A dedicated computer on Airbus aircraft that processes inputs and controls elevator and aileron surfaces.
View termエンジンアンチアイス
A system that prevents or removes ice formation on engine inlets, typically using hot bleed air.
View termエンジンオイル圧力
The pressure of oil circulating through an aircraft engine, essential for lubrication and cooling of moving components.
View termエンジン圧力比
Ratio of total pressure at the engine exhaust to that at the engine inlet, used as a primary engine thrust indicator.
View termエンジン表示・乗員警報システム
A Boeing system that displays engine and system data and alerts for operational and abnormal conditions.
View termエンジン計器ディスプレイ
The cockpit display panel showing all vital engine parameters, including N1/N2, temperature, oil pressure, fuel flow, and vibrations.
View termオートスロットルシステム
A system that automatically sets and maintains engine thrust based on flight parameters and autopilot commands.
View termオートブレーキシステム
A system that automatically applies braking at a selected rate during landing or rejected take-off to optimize stopping distance.
View termキャビンインターコミュニケーションシステム
An integrated system enabling voice communication between cabin crew and cockpit, and among crew stations.
View termキャビンプレッシャーコントローラー
Automatic device that regulates cabin altitude and rate of pressure change by controlling the outflow valve.
View termグラウンドスポイラー
Spoiler panels on the wings that fully deploy upon landing to disrupt lift and aid in braking and deceleration.
View termグリーン油圧系統
One of three independent hydraulic systems on Airbus aircraft, powering primary flight controls, landing gear, and other components.
View termシステムシノプティックディスプレイ
A cockpit display providing a schematic overview of aircraft systems’ status, such as hydraulics, electrics, fuel, and air conditioning.
View termジェネレーターコントロールユニット
Electronic module that manages and protects an aircraft generator, monitoring voltage, current, and system faults.
View termスタビライザートリム
The adjustment of the horizontal stabilizer angle to balance the aircraft in pitch for all flight phases.
View termステア・バイ・ワイヤ
A digital control system where electronic signals, not mechanical linkages, direct the nose-gear steering.
View termスピードブレークレバー
A cockpit control that arms or actuates spoiler panels to reduce speed or rate of descent during flight and landing roll.
View termスポイラーパネル
A hinged surface on the upper wing that disrupts airflow, reducing lift and increasing drag for roll control or descent.
View termスポイラー・エレベーター・コンピュータ
An Airbus computer managing spoilers, elevator backup, and other flight control surfaces for redundancy and flight envelope protection.
View termスラストリバーサー
A device used to redirect engine thrust forward to assist with deceleration after landing.
View termスラストレバー角度
The position or angle of the thrust lever, directly corresponding to engine power demand.
View termセーフティバルブ
A valve designed to automatically relieve excess pressure or vacuum to protect the aircraft structure.
View termチップディテクター
A sensor in an engine or gearbox that detects metallic particles, indicating wear or damage to internal components.
View termトランスポンダーコントロールパネル
Cockpit panel used for selecting, setting, and controlling aircraft transponder modes and codes.
View termトリムエア
A system that adds small amounts of hot bleed air to the mixed supply to fine-tune cabin temperature zones.
View termナビゲーションディスプレイ
Electronic display showing route, waypoints, navigation aids, weather, and traffic information.
View termノーズギア操舵
The system that allows pilots to steer the aircraft’s nose landing gear during taxi and ground operations.
View termパック
Air conditioning and pressurization units that cool, condition, and regulate the flow of air into the cabin using bleed air.
View termパックバルブ
A valve that regulates the flow of bleed air into the air conditioning pack.
View termパワートランスファーユニット
A hydraulic unit that enables power transfer between two separate hydraulic systems without mixing their fluids.
View termピトー管
A forward-facing tube that measures dynamic air pressure, providing critical input for airspeed indication.
View termフライトオグメンテーションコンピュータ
A system on Airbus aircraft that provides additional functions such as yaw damping, rudder trim, and flight envelope protection.
View termフライトディレクターバー
Visual cues on the Primary Flight Display indicating desired pitch and roll to guide manual flight path.
View termフライトマネジメントシステム
An avionics system integrating navigation, performance, and flight planning for automated aircraft operation.
View termフライトワーニングコンピュータ
A system that processes and displays warnings and cautions to the flight crew in response to abnormal conditions.
View termフライ・バイ・ワイヤ
An electronic flight control system where pilot inputs are transmitted as electrical signals to computers, which command the flight control surfaces.
View termフラペロン
A combined flight control surface that functions as both aileron and flap, used on some aircraft to improve control and lift.
View termフルオーソリティデジタルエンジンコントロール
An electronic system that provides complete automated control of all engine parameters for optimum performance.
View termブリードエア
High-pressure air extracted from an aircraft engine's compressor stage and used for environmental control, pressurization, anti-ice, and pneumatic systems.
View termブリードオーバープレッシャー
A condition where the bleed air pressure exceeds safe limits, causing automatic shutdown or system warnings.
View termブリードトリップ
Automatic closure of bleed air supply due to over-temperature or over-pressure, protecting the system from damage.
View termブルー油圧系統
One of three Airbus hydraulic systems, providing redundancy for flight controls, landing gear, and other powered components.
View termブレーキ温度モニター
A cockpit display or system that monitors the temperature of the main landing-gear brakes to prevent overheating.
View termプライマリフライトディスプレイ
The main instrument display showing attitude, speed, altitude, heading, and flight director information.
View termプライマリ・フライト・コンピュータ
The Boeing main computer responsible for integrating pilot inputs, aircraft data, and actuating control surfaces.
View termマスターコーションシステム
A central alerting system that warns the flight crew of abnormal but non-critical system status via lights and aural tones.
View termマッハトリムシステム
A system that compensates for Mach tuck by automatically adjusting stabilizer trim at high subsonic speeds.
View termミキシングユニット
A component that blends recirculated cabin air with conditioned air from the packs before distribution.
View termモードSトランスポンダ
An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.
View termヨーダンプシステム
An automatic system that prevents unwanted yaw oscillations by commanding the rudder, increasing flight comfort and stability.
View termラダートリム
A flight-control adjustment that offsets rudder position to maintain coordinated flight and correct for yaw.
View termラムエアタービン
A small turbine deployed in flight to provide emergency hydraulic or electrical power using airflow.
View termリサーキュレーションファン
A fan that recirculates cabin air, mixing it with conditioned air to improve efficiency and reduce bleed air demand.
View term代替ランディングギア展開
A backup method to deploy the landing gear using gravity, hydraulic, or manual means if the normal extension system fails.
View term低圧ローター回転数
Rotational speed of the low-pressure compressor or fan in a jet engine, often indicated as N₁.
View term全圧2番プローブ
Sensor measuring total (pitot) pressure at engine station 2 for air data and engine control systems.
View term全地球航法衛星システム
A system of satellites providing worldwide navigation, including GPS, GLONASS, Galileo, and BeiDou.
View term全空気温度プローブ
A sensor on the aircraft that measures total air temperature, providing critical input for engine and air-data systems.
View term可変スタターベーン
Adjustable compressor guide vanes that control airflow angle and optimize engine efficiency across operating conditions.
View term可変ブリードバルブ
Adjustable engine valves that regulate bleed air extraction to maintain compressor stability and prevent stall.
View term地形認識警報装置
Advanced system alerting pilots of hazardous terrain or obstacles using GPS and a terrain database, supplementing GPWS.
View term地表上
An altitude or height measured with reference to the underlying ground surface directly beneath the aircraft.
View term地表接近警報装置
An aircraft safety system that warns pilots if the aircraft is at risk of controlled flight into terrain or obstacles.
View term外気温
The temperature of the air outside the aircraft, used in performance and anti-ice calculations.
View term定速ドライブ装置
A transmission device that converts variable engine speed to a constant speed for generator operation.
View term平均海面
An altitude or elevation reference based on the average sea level used as a standard for aviation altimetry.
View term慣性基準装置
An aircraft system providing position and attitude data by processing gyroscopic and accelerometer inputs.
View term慣性航法装置
A self-contained navigation system using accelerometers and gyros to compute aircraft position, independent of external signals.
View term排気ガス温度
The temperature of gases emitted by the engine exhaust, critical for monitoring engine health and performance.
View term最小装備品リスト
An official list of equipment required for safe operation of an aircraft, specifying items which may be inoperative under specific conditions.
View term油圧アキュムレータ
A pressurized storage device that maintains hydraulic pressure and absorbs system shocks.
View term油圧ポンプ
A device that moves hydraulic fluid under pressure to operate aircraft systems such as landing gear, brakes, and flight controls.
View term油圧リザーバー
A tank storing hydraulic fluid for aircraft hydraulic systems, ensuring continuous supply during all phases of operation.
View term消火器ボトル
A pressurized container storing extinguishing agent for aircraft fire suppression in engines, cargo, or APU compartments.
View term滑走路視程
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火災検知ループ
A continuous sensing circuit that detects overheat or fire in aircraft engines, APU, or cargo bays.
View term無指向性無線標識
A ground-based radio transmitter used for navigation, providing direction by reference only.
View term爆発性チャージスクイブ
A small pyrotechnic device used to rapidly release fire-extinguishing agent by rupturing a fire bottle seal.
View term管制官・パイロットデータリンク通信
A digital communication system enabling direct text-based exchanges between ATC and pilots via data link instead of voice.
View term縮小垂直分離基準
A set of airspace procedures allowing aircraft to be separated by 1,000 feet vertically above FL290, increasing airspace capacity.
View term自動従属監視放送
A surveillance technology in which aircraft broadcast position and flight data, allowing real-time tracking by ATC and other aircraft.
View term衛星通信
A long-range communication system using satellites, enabling cockpit and company contact beyond VHF and HF range.
View term衝突防止装置
An airborne safety system providing pilots with traffic advisories and resolution advisories to avoid mid-air collisions.
View term補助動力装置
A self-contained turbine engine providing electrical and pneumatic power to the aircraft while on the ground or as backup in flight.
View term要求航法性能
A set of precision standards for aircraft navigation accuracy, integrity, and reliability within defined airspace or procedures.
View term計器着陸装置
A precision approach system providing lateral and vertical guidance to aircraft during landing using radio signals.
View term超短波無線
Radio system in the VHF band (118–137 MHz) used for primary ATC voice communication within line-of-sight range.
View term距離測定装置
An aircraft navigation system providing slant-range distance to a ground station, often paired with VOR or ILS.
View term電子回路ブレーカー
A digitally controlled switch that protects an electrical circuit from overload by interrupting power supply electronically.
View term電子集中航空機モニター
An Airbus system that displays engine, system, and alert messages for aircraft monitoring and troubleshooting.
View term静圧口
An external opening on an aircraft that senses ambient atmospheric pressure for use by the pitot-static system.
View term飛行制御油圧回路
Hydraulic circuit dedicated to supplying pressure to flight control surfaces such as ailerons, elevators, and rudder.
View term高周波無線
Radio system operating in the HF band (3–30 MHz), enabling long-distance voice communication between aircraft and ATC.
View term高圧ローター回転数
Rotational speed of the high-pressure compressor or core in a jet engine, commonly indicated as N₂.
View term