Landing gear

Methods of landing gear shock absorptionOleo (pressurized gas - oil) strut with torque linksOleo strut with trailing linkRubber discs in compression with trailing link, used on Mooney M20 series of aircraftSimple spring steel bar, used on many light aircraftSimple steel tube

Landing gear is the undercarriage of an aircraft or spacecraft, and is used in both takeoff and landing.

For aircraft, the landing gear supports the craft when it is not flying, allowing it to take off, land, and taxi without damage. Wheels are typically used but skids, skis, floats or a combination of these and other elements can be deployed depending both on the surface and on whether the craft only operates vertically (VTOL) or is able to taxi along the surface. Faster aircraft usually have retractable undercarriages, which folds away during flight to reduce air resistance or drag.

单词	Retractable undercarriage
释义	Retractable undercarriage 英语百科 Landing gear Landing gear is the undercarriage of an aircraft or spacecraft, and is used in both takeoff and landing. For aircraft, the landing gear supports the craft when it is not flying, allowing it to take off, land, and taxi without damage. Wheels are typically used but skids, skis, floats or a combination of these and other elements can be deployed depending both on the surface and on whether the craft only operates vertically (VTOL) or is able to taxi along the surface. Faster aircraft usually have retractable undercarriages, which folds away during flight to reduce air resistance or drag.
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Retractable undercarriage

Landing gear