Great Innovators Over 40

Michael Hoeweler
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Burt Rutan, 41: Scaled Composites

In 1984, after decades of aerospace inventions, Rutan launched the Voyager, the first plane to fly around the world without stopping, at 41. At 62, he launched the first privately funded human space flight, with the suborbital space plane SpaceShipOne. Rutan, 70, recently retired.