What are the 2 basic landing gear configurations?
There are two basic configurations of airplane landing gear: conventional gear or tail wheel gear and the tricycle gear.
What are the components of the landing gear?
The main structural components of a landing gear system are the shock absorber, axle, torque links, side braces, retraction actuators, wheels, and tires. System components consist of the brake system, anti-skid systems, retraction systems, and steering systems.
What are the wheels of a landing gear made of?
Wheels are made of aluminum alloy. Some magnesium alloy made wheels are also used. Tires are mounted on the wheel. Tires are made stiffer to absorb high impact load while landing and enable the aircraft to operate at high speed during taxing in after landing without blowing out or separating from rim.
How is landing gear height determined?
In general, the landing gear height is defined as the distance between the ground and the conjunction between main gear strut and the aircraft structure (fuselage, wing, nacelles, etc.). The landing gear height of any aircraft varies depending the loading conditions and where you measure it (nose or main landing gear).
How are landing gears manufactured?
The landing gear manufacturing involves development of many closed die forgings, machined components from ultra-high strength steels, titanium and aluminum alloys. Precision tolerances are required for components like actuator cylinder, piston, shock absorber parts and axle.
What metal is used in landing gears?
Landing gears are generally “safe life” components and are replaced many times during the service life of an aircraft. Traditional metallic materials used in landing gear structures are Aluminum, Titanium and steel alloys.
How do you calculate landing gear load?
K = 2 [18,333 x 11,538/(18,333 + 11,538)] = 14,163 lb/ft. Part 23 allows the landing weight, Wt to equal 0.95 x gross weight. For a gross weight of 1,232 lbs the landing weight is 1,170 lbs. The gyroplane has a disc diameter of 30 ft and hence a disc area of p r2 = 3.141 x 152 = 707 sq.
Why are landing gears retractable?
Retractable landing gear is designed to streamline the airplane (reduce the drag) by allowing the landing gear to be stowed inside the structure during cruising flight. Fixed landing gear is common with slow (e.g. general aviation) aircraft and most commercial aircraft use retractable landing gear.
Why do airplanes pull up their landing gears after take off?
Planes that have retractable gear generally retract their gear for improved performance. Not having wheels and struts hanging down streamlines the plane, improves fuel efficiency, enables them to fly faster and higher, and makes for a quieter, more comfortable ride inside the cabin.
What are the 4 typical loads on an aircraft?
There are four main load sources acting on an aeroplane – aerodynamic forces, inertia, ground reactions and thrust.
What is inertia load factor?
If an aircraft is considered in accelerated flight (Figure 1), the overall lift due to the wings and tail L = LW + LT is balanced by the inertia force nW, where W is the weight and n is known as the load factor, defined as. Figure 1. Balance forces on aircraft in accelerated flight.
What type of aircraft landing gear is best?
Conventional Landing Gear (or the not so surprisingly named ‘Taildragger’)
Why do airplanes require landing gear?
– The maximum airspeed that they can safely fly without doing damage to the landing gear mechanism. – The maximum airspeed that they can retract (or extend) the landing gear. – Other than that, an aircraft that flies with the landing gear extended suffers the additional aerodynamic drag and loss of airspeed incumbent in that.
How do they test airplane landing gear?
Jack up the airplane.
What are the three types of landing gear?
Tail wheel-type landing gear —The main gear is located forward of the center of gravity,which requires support from the tail of a third wheel assembly.