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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.
Wiki User
∙ 8y ago
Wiki User
∙ 14y agoSome airplanes use a fixed landing gear system, in which the main and tail wheels are secured in static positions with flexible struts. Retractable landing gear often makes use of hydraulics - while emergency, mechanical means are still available in event of hydraulic failure. The benefit of retracting landing gear is a reduction in drag in flight.
Wiki User
∙ 14y agoIts known as the undercarriage or landing gear.
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Why is landing gear called landing gear?
Attached to a gear are many tires. The tires are used the land the aeroplane. That is why it is called landing gear.
1950's war movie where the landing gear does not deploy and the young officer in the bubble under the plane draws the landing gear on a scretch pad and the landing gear appears like a characature.?
Amazing stories
What is the definition of fixed landing gear?
..l..
Why is Vlo lower than Vle?
Vlo = Maximum landing gear operating speed (do not exceed this speed while the landing gear is operaing) Vle = Maximum landing gear extended speed (do not exceed this speed while the landing gear is extended) When the landing gear is fully retracted or fully extended it is locked into position and is more resistant to damage from high airspeeds. When the landing gear is in the process of extending or retracting (operating) there is no locking mechanism, and the only thing resisting the airflow is the extension/retraction mechanisms. Additionally, on some aircraft, the landing gear may swing or swivel in odd directions in order to tuck into their recesses, this can cause odd aerodynamic behavoir in the rest of the aircraft if done at high speeds. Once the landing gear is extended, it is rare that a pilot would then exceed Vlo. Most of the time the landing gear is lowered shortly before landing and the pilot is doing everything he can to slow the aircraft further. However in the event that an aircraft had to be flown a long distance with the landing gear extended (such as a ferry flight to a repair facility) the pilot would go ahead & fly Vle.
What are the forces acting on landing gear during landing?
vertical loads, longitudinal loads and vertical loads
Why is landing gear called landing gear?
Attached to a gear are many tires. The tires are used the land the aeroplane. That is why it is called landing gear.
Where is landing gear actuator located in aircraft?
On the Landing gear
What is the landing gear on a helicopter called?
It is just called 'landing gear'
Types of landing gear?
1-tricycle gear 2-conventional gear 3-unconventional gear 4-tail wheel landing gear
How many landing gear must deploy to land?
All of the landing gear on the particular aircraft.
How big are the wheels on a Boeing 767?
A Boeing 767 aircraft has a total of 10 wheels. Two on the front landing gear, 4 on each of the two main landing gear.
How does an airplane landing work?
Almost every aspect of an airplane landing is managed by computer. The most important aspect is decelerating the airplane so the brakes and landing gear can stop the plane.
What is belly landing?
A belly landing is a landing of an aircraft without the landing gear being deployed.
What is a belly landing?
A belly landing is a landing of an aircraft without the landing gear being deployed.
When does a plane deploy its landing gear?
The plane's landing gear is deployed as the plane is descending and nearing the runway.
Information landing gear of sr-71 blackbird?
The SR-71 had tricycle landing gear made of titanium.
Types of landing gear in helicopter?
Skid type gear.
