OPINION: Pratt & Whitney right to innovate with geared turbofan

By Flight International2016-06-20T09:16:13

In the late-1980s, Pratt & Whitney had a flash of inspiration. Reduction gears for gas turbines already existed, but the only reliable gearboxes for airliner-sized engines were the size of houses. If P&W could scale down the gearbox into a package weighing less than 150kg, they could change the industry.

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