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The wright Brothers invented, builded, and flew the world's first successful motor-operated airplane
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In 1930 Frank Whittle patented the jet engine.
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The Beoing 747 conducts its first flight. It was the most successful airline ever made.
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The B-2 Spirit was the most expensive plane ever made, it cost more than one Billion dollars to build.
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It is the largest plane built and had enough seats for 555 people.
