Types and Construction of Aircraft Brakes (Part Three)

Aircraft Landing Gear Systems

Carbon Brakes The segmented multiple-disc brake has given many years of reliable service to the aviation industry. It has evolved through time in an effort to make it lightweight and to dissipate the frictional heat of braking in a quick, safe manner. The latest iteration of the multiple-disc brake is the carbon-disc brake. It is […]

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Types and Construction of Aircraft Brakes (Part Two)

Aircraft Landing Gear Systems

Dual-Disc Brakes Dual-disc brakes are used on aircraft where a single disc on each wheel does not supply sufficient braking friction. Two discs are keyed to the wheel instead of one. A center carrier is located between the two discs. It contains linings on each side that contact each of the discs when the brakes […]

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Types and Construction of Aircraft Brakes (Part One)

Aircraft Landing Gear Systems

Very early aircraft have no brake system to slow and stop the aircraft while it is on the ground. Instead, they rely on slow speeds, soft airfield surfaces, and the friction developed by the tail skid to reduce speed during ground operation. Brake systems designed for aircraft became common after World War I as the […]

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Aircraft Wheels – Wheel Inspection (Part Two)

Aircraft Landing Gear Systems

Wheel Bearing Inspection Once cleaned, the wheel bearing is inspected. There are many unacceptable conditions of the bearing and bearing cup, which are grounds for rejection. In fact, nearly any flaw detected in a bearing assembly is likely to be grounds for replacement. Common conditions of a bearing that are cause for rejection are as […]

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Aircraft Wheels – Wheel Inspection (Part One)

Aircraft Landing Gear Systems

Wheel Inspection An aircraft wheel assembly is inspected while on the aircraft as often as possible. A more detailed inspection and any testing or repairs may be accomplished with the wheel assembly removed from the aircraft. On Aircraft Inspection The general condition of the aircraft wheel assemblies can be inspected while on the aircraft. Any […]

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Aircraft Wheels – Wheel Construction

Aircraft Landing Gear Systems

Aircraft wheels are an important component of a landing gear system. With tires mounted upon them, they support the entire weight of the aircraft during taxi, takeoff, and landing. The typical aircraft wheel is lightweight, strong, and made from aluminum alloy. Some magnesium alloy wheels also exist. Early aircraft wheels were of single piece construction, […]

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Nose Wheel Steering Systems

Aircraft Landing Gear Systems

The nose wheel on most aircraft is steerable from the flight deck via a nose wheel steering system. This allows the aircraft to be directed during ground operation. A few simple aircraft have nose wheel assemblies that caster. Such aircraft are steered during taxi by differential braking. Small Aircraft Most small aircraft have steering capabilities […]

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Landing Gear System Maintenance (Part Two)

Aircraft Landing Gear Systems

Gear Door Clearances Landing gear doors have specific allowable clearances between the doors and the aircraft structure that must be maintained. Adjustments are typically made at the hinge installations or to the connecting links that support and move the door. On some installations, door hinges are adjusted by placing a serrated hinge with an elongated […]

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Landing Gear System Maintenance (Part One)

Aircraft Landing Gear Systems

The moving parts and dirty environment of the landing gear make this an area of regular maintenance. Because of the stresses and pressures acting on the landing gear, inspection, servicing, and other maintenance becomes a continuous process. The most important job in the maintenance of the aircraft landing gear system is thorough accurate inspections. To […]

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