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An airliner is a type of transportation service for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an aircraft intended for carrying multiple passengers or cargo in commercial service. The largest airliners are ''wide-body'' jets. These aircraft are frequently called ''twin-aisle aircraft'' because they generally have two separate aisles running from the front to the back of the passenger cabin. These aircraft are usually used for long-haul flights between airline hubs and major cities with many passengers. A smaller, more common class of airliners is the ''narrow-body'' or ''single aisle'' aircraft. These smaller airliners are generally used for short to medium-distance flights with fewer passengers than their wide-body counterparts. ''Regional airliners'' typically seat fewer than 100 passengers and may be powered by turbofans or turboprops. These airliners are the non-mainline counterparts to the larger aircraft operated by the major carriers, legacy carriers, and flag carriers and are used to feed traffic into the large airline hubs. These regional routes then form the spokes of a hub-and-spoke air transport model. The lightest (light aircraft, list of light transport aircraft) of short haul regional feeder airliner type aircraft that carry 19 or fewer passenger seats are called ''commuter aircraft,'' ''commuterliners, feederliners,'' and ''air taxis'', depending on their size, engines, how they are marketed, region of the world, and seating configurations. The Beechcraft 1900, for example, has only 19 seats. ==History== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Airliner」の詳細全文を読む スポンサード リンク
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