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on 25-Feb-2022 (Fri)

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The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight".[4]
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Airplane - Wikipedia
cargo annually, which is less than 1% of the world's cargo movement.[3] Most airplanes are flown by a pilot on board the aircraft, but some are designed to be remotely or computer-controlled . <span>The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight".[4] They built on the works of George Cayley dating from 1799, when he set forth the concept of the modern airplane (and later built and flew models and successful passenger-carrying glider




Worldwide, commercial aviation transports more than four billion passengers annually on airliners
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Airplane - Wikipedia
Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, transportation of goods and people, military, and research. <span>Worldwide, commercial aviation transports more than four billion passengers annually on airliners[1] and transports more than 200 billion tonne-kilometers[2] of cargo annually, which is less than 1% of the world's cargo movement.[3] Most airplanes are flown by a pilot on board the a




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Question
Worldwide, commercial aviation transports more than [...] billion passengers annually on airliners
Answer
four

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Worldwide, commercial aviation transports more than four billion passengers annually on airliners

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Airplane - Wikipedia
Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, transportation of goods and people, military, and research. <span>Worldwide, commercial aviation transports more than four billion passengers annually on airliners[1] and transports more than 200 billion tonne-kilometers[2] of cargo annually, which is less than 1% of the world's cargo movement.[3] Most airplanes are flown by a pilot on board the a