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Pages 1-4

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From page 1...
... Agencies and organizations in government, industry, and academia with an interest in developing propulsion and energy system technologies that could reduce CO2 emissions from global civil aviation and that could be introduced into service during the next 10 to 30 years should execute a national research agenda that places the highest priority on four approaches: • Advances in aircraft–propulsion integration, • Improvements in gas turbine engines, • Development of turboelectric propulsion systems, and • Advances in sustainable alternative jet fuels. 1  Effective July 1, 2015, the institution is called the National Academies of Sciences, Engineering, and Medicine.
From page 2...
... This includes developing lighter, more efficient nacelles to increase propulsion efficiency for standard aircraft as well as nonstandard configurations that require a much higher level of propulsion–aircraft integration to enable boundary layer ingestion. GAS TURBINE ENGINE RESEARCH The committee identified three high-priority research projects to support advances in gas turbine engines: • Low pressure–ratio fan propulsors, • Engine materials and coatings, and • Small engine cores.
From page 3...
... As drop-in fuels, SAJF are compatible with existing aircraft and infrastructure, so their widespread use would not be limited by the time it takes for a new technology to slowly propagate through an aviation fleet. SAJF research projects would include detailed evaluations of the benefits of SAJF, developing sustainable and low-cost feedstocks, determining the most cost-effective conversion technologies for full-scale fuel production from these feedstocks, and fuel testing and qualification for commercialization.


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