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Electrified Aircraft Propulsion (EAP)

Electrified Aircraft Propulsion (EAP) is the use of propulsors (propellers or fans) driven by electric motors to propel aircraft ranging from air taxis to subsonic transports. NASA is developing technology, aircraft concepts, test aircraft, and ground test facilities to turn this idea from science fiction to reality. Lessons learned will have a positive impact on the economy of the U.S.

Current Activities

EAP work is performed under four different projects addressing complementary aspects of this idea.


EAP for Larger AircraftEAP NASA STARC-ABL aircraft

Under parts of the Advanced Air Transport Technology (AATT) Project, NASA is investing in Electrified Aircraft Propulsion (EAP) research to improve the fuel efficiency, emissions, and noise levels in commercial transport aircraft. Turboelectric, partially turboelectric, and hybrid electric propulsion systems are the primary EAP configurations being evaluated for regional jet and larger aircraft. Read more…

EAP Elements of the NASA Aeronautics Strategic Implementation Plan

Long-term aeronautics research has long provided the basis for new concepts leading to industry innovation and societal benefits. The future holds new challenges for the aviation system, including continuing growth to meet emerging global demand, integration of unmanned aircraft systems and other innovative vehicle concepts to serve myriad needs, and proactive adaptability to changing conditions – all with minimum adverse impact on the environment. To address these challenges, ARMD will continue its role of undertaking research and development that falls outside the scale, risk, and payback criteria that govern commercial investments.

ARMD’s strategy will continue to focus on high-impact research investments that will enable the transformation of aviation to serve future needs, produce demonstrable benefits, and leverage technology advances outside of, as well as within, traditional aviation disciplines. Major technology foci include alternative fuels and electric or hybrid propulsion, low-sonic-boom supersonic flight, automation and autonomy, and technology convergence to develop transformative solutions, with the ultimate goal of enabling a safe, efficient, adaptive, scalable, and environmentally sustainable global aviation system.

Download the NASA Aeronautics Strategic Implementation Plan


The EAP team has a wide selection of resources available. Explore the links below to view technical documents and presentations.



EAP in the News

NASA Aims for Climate-Friendly Aviation

Expanding NASA Aeronautics Research for Sustainable Aviation (NASA Video)

NASA Takes Steps to Reduce Aviation Emissions, Invigorate US Economy

Fantasy to Reality: NASA Pushes Electric Flight Envelope

NASA, Industry Partner Up to Power Up

NASA, U.S. Industry Aim to Electrify Commercial Aviation

NEAT Tests Megawatt-Scale Electric Aircraft Power Systems

Renovate to Elevate: Facility Upgrades Propel Green Aviation

Magnetizing the Future of Aviation

Electrified Aircraft—Tackling the Challenges of Alternative Propulsion (NASA Video)

Turbo-Electric Propulsion, a New Idea for Revolutionary Aircraft (NASA Video)

Smaller is Better for Jet Engines

Aviation Renaissance: NASA Advances Concepts for Next-gen Aircraft

Progress in 2020 Advances Aviation’s Future (ARMD)

NextGen Aircraft Design is Key to Aviation Sustainability (ARMD)

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