Aviation Glossary - Undercarriage

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Undercarriage

The landing gear of a land-based aircraft, including struts, frames, and wheels. A very British word that has limited use in the USA.

source: FAA Aerosense Glossary

Landing gear is the undercarriage of an aircraft or spacecraft and is often referred to as such.

For aircraft, the landing gear supports the craft when it is not flying, allowing it to take off, land and usually to 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 undercarriage, which folds away during flight to reduce air resistance or drag.

source: Wikitionary / Wikipedia and Related Sources (Edited)

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