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Questions and Answers
Where are the main landing gear struts attached to the aircraft?
Where are the main landing gear struts attached to the aircraft?
What are attached to each strut for attachment of a step?
What are attached to each strut for attachment of a step?
What are routed down and clamped to each main gear strut?
What are routed down and clamped to each main gear strut?
What are installed at the lower end of each strut?
What are installed at the lower end of each strut?
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What type of steel are the main landing gear struts made of?
What type of steel are the main landing gear struts made of?
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What is the purpose of the brake fairings?
What is the purpose of the brake fairings?
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How are the fuselage fairings attached to the aircraft?
How are the fuselage fairings attached to the aircraft?
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What are the tubular strut fairings attached to at the lower end?
What are the tubular strut fairings attached to at the lower end?
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What is the purpose of the fairing caps?
What is the purpose of the fairing caps?
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How are the speed fairings attached to the axles?
How are the speed fairings attached to the axles?
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What is the purpose of the tubular strut fairings?
What is the purpose of the tubular strut fairings?
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What do the fairing caps attach to at the upper end?
What do the fairing caps attach to at the upper end?
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How are the brake fairings attached to the wheel speed fairings?
How are the brake fairings attached to the wheel speed fairings?
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What do the speed fairings attach to?
What do the speed fairings attach to?
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What are the fuselage fairings attached to?
What are the fuselage fairings attached to?
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What is the purpose of the hydraulic fluid-filled shimmy dampener?
What is the purpose of the hydraulic fluid-filled shimmy dampener?
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What connects the nose gear steering collar to the rudder pedal bars?
What connects the nose gear steering collar to the rudder pedal bars?
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What is the nose gear mounted in?
What is the nose gear mounted in?
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What type of shock strut is used in the nose gear?
What type of shock strut is used in the nose gear?
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What may be installed on some aircraft?
What may be installed on some aircraft?
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What is the primary function of the shimmy dampener in the nose gear?
What is the primary function of the shimmy dampener in the nose gear?
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What connects the nose gear steering collar to the rudder pedal bars?
What connects the nose gear steering collar to the rudder pedal bars?
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What type of shock strut is used in the nose gear?
What type of shock strut is used in the nose gear?
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What is the nose gear mounted in?
What is the nose gear mounted in?
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What is secured to the tubular engine mount?
What is secured to the tubular engine mount?
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What is the purpose of the shimmy dampener in the nose gear?
What is the purpose of the shimmy dampener in the nose gear?
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What is the relative motion between the shimmy dampener shaft and housing caused by?
What is the relative motion between the shimmy dampener shaft and housing caused by?
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What is secured to a stationary part in the shimmy dampener?
What is secured to a stationary part in the shimmy dampener?
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What flows through the small orifices in the piston of the shimmy dampener?
What flows through the small orifices in the piston of the shimmy dampener?
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What is the nose wheel steering collar connected to in the shimmy dampener?
What is the nose wheel steering collar connected to in the shimmy dampener?
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Study Notes
Main Landing Gear
- Tubular, spring-steel struts are used in the main landing gear
- Struts are attached to the aircraft at two points: inboard and outboard forgings
- Inboard and outboard forgings are located in the belly of the aircraft
- A bracket is bonded to each strut, used for step attachment
- Hydraulic brake lines are routed down each main gear strut
- Brake lines are clamped to the strut
- Axles, main wheels, and brake assemblies are installed at the lower end of each strut
Fuselage Fairings and Tubular Strut Fairings
- Fuselage fairings are attached to the fuselage and tubular strut fairings with screws.
- Tubular strut fairings cover the tubular landing gear struts.
- Tubular strut fairings attach to the fuselage fairings at the upper end.
- Tubular strut fairings attach to fairing caps at the lower end.
Fairing Caps
- Fairing caps attach to the tubular strut fairings at the upper end.
- Fairing caps are clamped to the tubular struts at the lower end.
Brake Fairings and Speed Fairings
- Brake fairings are installed at the lower end of the tubular strut fairings.
- Brake fairings are attached to wheel speed fairings by screws around their outer perimeters.
- Speed fairings are installed over the wheels.
- Speed fairings are attached to mounting plates.
- Mounting plates are attached to the axles.
Fuselage Fairings and Tubular Strut Fairings
- Fuselage fairings are attached to the fuselage and tubular strut fairings with screws.
- Tubular strut fairings cover the tubular landing gear struts.
- Tubular strut fairings attach to the fuselage fairings at the upper end.
- Tubular strut fairings attach to fairing caps at the lower end.
Fairing Caps
- Fairing caps attach to the tubular strut fairings at the upper end.
- Fairing caps are clamped to the tubular struts at the lower end.
Brake Fairings and Speed Fairings
- Brake fairings are installed at the lower end of the tubular strut fairings.
- Brake fairings are attached to wheel speed fairings by screws around their outer perimeters.
- Speed fairings are installed over the wheels.
- Speed fairings are attached to mounting plates.
- Mounting plates are attached to the axles.
Nose Gear Components
- The nose gear consists of a steerable nose wheel mounted in a fork.
- The fork is attached to an air/oil (oleo) shock strut.
- The shock strut is secured to the tubular engine mount.
Nose Wheel Steering
- Nose wheel steering is accomplished by two spring-loaded push-pull tubes.
- The tubes link the nose gear steering collar to the rudder pedal bars.
Shimmy Prevention
- A hydraulic fluid-filled shimmy dampener is provided to minimize nose wheel shimmy.
- Some aircraft may have a nose wheel speed fairing installed.
Nose Gear Components
- The nose gear consists of a steerable nose wheel mounted in a fork.
- The fork is attached to an air/oil (oleo) shock strut.
- The shock strut is secured to the tubular engine mount.
Nose Wheel Steering
- Nose wheel steering is accomplished by two spring-loaded push-pull tubes.
- The tubes link the nose gear steering collar to the rudder pedal bars.
Shimmy Prevention
- A hydraulic fluid-filled shimmy dampener is provided to minimize nose wheel shimmy.
- Some aircraft may have a nose wheel speed fairing installed.
Nose Gear Shimmy Dampener
- The shimmy dampener is designed to provide resistance to shimmy in the nose gear.
- The dampener works by forcing hydraulic fluid through small orifices in a piston.
- The dampener piston shaft is stationary, secured to a non-moving part.
- The housing of the dampener is secured to the nose wheel steering collar, which moves when the nose wheel turns right or left.
- The relative motion between the dampener shaft and housing helps to resist shimmy.
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Description
This quiz covers the components and attachments of an aircraft's main landing gear struts, including forgings, brackets, hydraulic brake lines, axles, and brake assemblies.
