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NASA: Revolutionising engine efficiency - shrinking aviation's carbon footprint

August 31, 2016. NASA. As NASA looks to transform the commercial aircraft of the future, efficient engines are at the heart of it all. To achieve the goal of better engines on future aircraft, researchers at NASA Glenn (a part of NASA’s Transformative Aeronautics Concepts Programare investigating promising advances in high-temperature materials that can be used to make turbine engine components. 
    These materials, called ceramic-matrix composites (CMCs), are lighter, stronger and can withstand the demanding forces of the extremely high temperatures generated in the core of jet engines. In general, the hotter an engine runs, the better the fuel efficiency...

Read more from this NASA sourced article here: 

As the world’s middle class expands, so does its ability to travel. Passenger numbers are expected to double over the next two decades, and carbon emissions from aviation will rise along with them—by about 300 percent by 2050. While today’s flights emit half as much as they did in 1990, further savings are needed to meet the industry’s goal of capping its carbon emissions. Meanwhile airlines are investing in new technology, alternative fuels, and operational advances.
Kelsey Nowakowski, National Geographic Journalist.

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Below: A Pratt & Whitney F100 turbofan engine for the F-15 Eagle being tested in the hush house at Florida Air National Guard base. The tunnel behind the engine muffles noise and allows exhaust to escape. Image source: Credit:  Shelley Gill (123232730) [Public domain], via Wikimedia Commons.