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When the landing gear retracts, it is very important for aerodynamics that they retract into the body of the aircraft as much as possible. However, placement of the landing gear depends ultimately on factors such as the aircraft's center of gravity, its weight, its possible fuel load and much more, there may not be a good locaction in the aircraft for the wheels to rectract fully without some kind of articulation. As a result, aircraft designers often must come up with some pretty interesting solutions to enable to landing gear to be retracted fully into a space that is otherwise unused in the aircraft. Often in order for the landing gear to retract into its well, the wheel trucks may have to be rotated or pivoted.
Large aircraft in particular often have multiple wheels for each of the landing gear. It is particularly difficult to design a retraction system for these as the wheel trucks may be very large and ungainly.
Some large aircraft have the ability to pivot the landing gear to one direction or another for landing. This is done to increase the aircraft's capacity to land in cross-winds. In a strong cross-wind the aircraft may not be able to land gracefully pointed straight down the runway, and so the landing gear may be off-set one direction or another to allow the aircraft to land with a slight crab-angle.
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How does a landing gear work?
No.This question probably stems from a misunderstanding of a term. Likely came from the fact that the undercarriage of an aircraft is often referred to, at least in the U.S. as Landing Gear.Answer 2Aircraft landing gears can have gears similar to a car's rack and pinion steering mechanism that turns the lower piston of the Nose landing gear. The rack and pinion would be operated with hydraulic pressure. Reference Airbus airliners. The first answer seems to refer to the retract mechanism. Most gears are retracted and extended using some hydraulic power and the kinematic design of the strut and its links and pivot points.The Concord had a mechanism that pulled up the Main landing gear to make it shorter just before it rotated into the wheel well during Retraction. Otherwise, the gear was too long to go inside the wheel well. I'm not sure exactly how this worked but I think it was with the use of a mechanical linkage that may have used a bell crank or a gear.I don't know of any Landing Gear that uses a ball-screw actuator to retract and extend it, which is commonly used for flight controls.
What is a moving pivot?
A moving pivot is a pivot that moves
Two kinds of landing gear?
There are many different kinds of landing gear that can be categorized by their geometry and their internal design. There are fixed landing gears that do not retract. These are usually a support that is made of spring steel that has a axle for a wheel. This example is found on small Cessna aircraft. Other fixed landing gear that are attached at a pin joint and have a shock strut to absorb landing loads. Helicopters are good examples as many have a fixed landing gear. The simplest landing gear shock strut is designed to stroke and absorb energy and it has an axle for either 1 or 2 wheels. These usually rotate on a trunnion at the top of the gear to allow retraction by pivoting of the entire gear. A drag brace locks it down into position. Larger gear have a bogie beam or pivot beam that have multiple wheels, either 4 or 6. The bogie beam attaches to the shock strut and is allowed to pivot during landing and taxi. It will have an actuator or locking mechanism to hold the bogie beam in proper position to allow it to retract in to the wheel well. Internal Design The simplest design is the lower half of the strut(called the Piston) is designed to stroke into the upper half (Outer Cylinder). As it does, the piston forces the fluid through an narrow opening (orifice) that restricts the movement and allows the gear to absorb energy. Many Nose landing gears are of this simple design. Other gear designs will allow the Piston to stroke to a point where it contacts a 2nd Stage. This 2nd stage will have higher pressure or an enclosed volume of air that acts as a final cushion to stop the gear. Some gears have a 2nd Chamber at the top of the gear that has its own piston and orifice. As the Piston strokes, the internal pressures build up and push against the 2nd Stage and it begins to stroke and also resist the forces. This example is found in the DC10 or MD11 Main landing gear.
What is a piv?
A .piv file is a file created from Pivot Stickfigure Animator, which stands for Pivot.
What is the best pivot version?
3 is glitchy so 2 is the best well sover far i like pivot animator v.3
What is the purpose of the pivot point calculator?
The purpose of the pivot point calculator is to provide a quick way to calculate pivot points. Pivot points are used for online fx trading, option trading, oil options, and commodities trading.
Would the pivot bearing stop the car from going into gears once the car is started?
The pivot bearing can cause your car from going into gear, once the car is started. The pivot bearing is located in the transmission.
How does a landing gear work?
No.This question probably stems from a misunderstanding of a term. Likely came from the fact that the undercarriage of an aircraft is often referred to, at least in the U.S. as Landing Gear.Answer 2Aircraft landing gears can have gears similar to a car's rack and pinion steering mechanism that turns the lower piston of the Nose landing gear. The rack and pinion would be operated with hydraulic pressure. Reference Airbus airliners. The first answer seems to refer to the retract mechanism. Most gears are retracted and extended using some hydraulic power and the kinematic design of the strut and its links and pivot points.The Concord had a mechanism that pulled up the Main landing gear to make it shorter just before it rotated into the wheel well during Retraction. Otherwise, the gear was too long to go inside the wheel well. I'm not sure exactly how this worked but I think it was with the use of a mechanical linkage that may have used a bell crank or a gear.I don't know of any Landing Gear that uses a ball-screw actuator to retract and extend it, which is commonly used for flight controls.
Can you take two steps from the pivot in basketball without dribbling if a pass or shot is attempted before landing?
no
According to 'The Philosophy of Composition' what was the purpose of the refrain in 'The Raven'?
to serve as a pivot point for the poem (apex)
What cannot exist in Excel without an associated Pivot Table?
A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.A pivot chart.
What is a powerful tool for summarizing in a table in Excel?
A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.A pivot table.
What is a moving pivot?
A moving pivot is a pivot that moves
What type of simple machine is a clock?
it is a lever becaue it has 2 end and a fulcrum or pivot
Is there such thing as Pivot 4.0?
Nope there is no Pivot 4.0 there is only pivot 3 beta pivot 3.1
Two kinds of landing gear?
There are many different kinds of landing gear that can be categorized by their geometry and their internal design. There are fixed landing gears that do not retract. These are usually a support that is made of spring steel that has a axle for a wheel. This example is found on small Cessna aircraft. Other fixed landing gear that are attached at a pin joint and have a shock strut to absorb landing loads. Helicopters are good examples as many have a fixed landing gear. The simplest landing gear shock strut is designed to stroke and absorb energy and it has an axle for either 1 or 2 wheels. These usually rotate on a trunnion at the top of the gear to allow retraction by pivoting of the entire gear. A drag brace locks it down into position. Larger gear have a bogie beam or pivot beam that have multiple wheels, either 4 or 6. The bogie beam attaches to the shock strut and is allowed to pivot during landing and taxi. It will have an actuator or locking mechanism to hold the bogie beam in proper position to allow it to retract in to the wheel well. Internal Design The simplest design is the lower half of the strut(called the Piston) is designed to stroke into the upper half (Outer Cylinder). As it does, the piston forces the fluid through an narrow opening (orifice) that restricts the movement and allows the gear to absorb energy. Many Nose landing gears are of this simple design. Other gear designs will allow the Piston to stroke to a point where it contacts a 2nd Stage. This 2nd stage will have higher pressure or an enclosed volume of air that acts as a final cushion to stop the gear. Some gears have a 2nd Chamber at the top of the gear that has its own piston and orifice. As the Piston strokes, the internal pressures build up and push against the 2nd Stage and it begins to stroke and also resist the forces. This example is found in the DC10 or MD11 Main landing gear.
What is a Pivot Sentence?
A sentence in pivot (If you mean pivot stick animator)
