LandingGear PreFinals

21問 • 1年前

問題一覧

of an aircraft's landing gear involve complex systems designed to ensure the gear functions reliably and safely.

Retraction and Extension

Electrical control systems manage the operation of the landing gear. They include sensors that detect gear position, switches that allow the pilot to initiate gear movement, and electronic control units (ECUs) that coordinate the operation of the hydraulic and mechanical components.

Control Logic

manage the operation of the landing gear. They include sensors that detect gear position, switches that allow the pilot to initiate gear movement, and electronic control units (ECUs) that coordinate the operation of the hydraulic and mechanical components.

Electrical Control Systems

to initiate the retraction or extension of the landing gear. This sends an electrical signal to the control system, which activates the hydraulic system accordingly.

Gear Lever

These are powered by hydraulic fluid and are responsible for extending and retracting the landing gear.

Hydraulic Actuators

These are powered by hydraulic fluid and are responsible for extending and retracting the landing gear.

Hydraulic Actuators

pressurizes the fluid, and when directed by the pilot or aircraft systems, this high-pressure fluid is used to move the gear.

Hydraulic Pump

The landing gear must be securely locked in place, either extended or retracted.

Locks and Latches

are components in an aircraft's cockpit that provide pilots with immediate visual feedback regarding the status of the landing gear.

Visual Indicators

Aircraft equipped with this system have three lights (usually green) that indicate the status of each landing gear—main gears and nose gear. When all three lights are illuminated green, it signifies that all landing gear is fully extended and locked in the down position.

Three-Green System

is a component in an aircraft's cockpit that provides pilots with visual or tactile feedback regarding the status of the landing gear

Mechanical Visual Indicators

In addition to visual indicators, some aircraft are equipped with audible alerts or warnings that sound when the landing gear is not in the expected position.

Audible Indicators

may include horn sounds or voice messages indicating "GEAR UP" or "GEAR DOWN" to alert the pilot of the landing gear status.

Audible Alerts

the simplest form of emergency extension.

Gravity Drop

are pressurized by a hand pump or a stored gas source such as nitrogen.

Hydraulic Backup Systems

utilize manual mechanisms such as crank handles, gears, or cables to extend the landing gear.

Mechanical Backup Systems

3 types of backup system

Gravity Drop, Hydraulic, and Mechanical

3 Types of Landing Gear Indicator

Audible, Electrical, and Mechanical Visual Indicator

4 Steps of Operation/Basic Operation on Landing Gear

Extension, Retraction, Deploying, and Controlling

controls the direction of hydraulic fluid flow, determining whether it goes to the extend or retract actuators. The pilot or automated systems control this valve.

Selector Valve

These high-pressure lines transport hydraulic fluid between the pump, selector valve, actuators, and landing gear components.

Hydraulic Lines

BasicElec Pre Final

Nillo Jb · 38問 · 2年前

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