What Happened
US Aerospace Companies Submit Proposals For Next Phase
The US Federal Aviation Administration (FAA) is exploring innovative airframe-engine technologies for the next phase of its Continuous Low Energy, Emissions and Noise (CLEEN) program. US-based aerospace companies have submitted proposals to participate in the program, which has been broadened to potentially include technology for more nontraditional propulsion systems. The move reflects the FAA’s ongoing efforts to reduce aviation’s environmental impact, as reported by Aviation Week.