ZeroAviation is set to flight test a hydrogen-powered six-seat aircraft, but says that by 2040 the technology could carry 200 people more than 3,000 nm.
The backing for the startup from a leading technology entrepreneur has provided a boost for the eVTOL sector at a time of concern over investment rates.
The UK's Farnborough Airport spent nine years making the changes that resulted in it becoming the world's first carbon neutral business aviation airport.
NBAA welcomed the release of the supersonic NPRM as a positive, but the Center for Biological Diversity fears it could be disastrous to the environment.
Foresight Aerospace's Sustainable Aviation and Urban Air Mobility conference will include eVTOL program leaders, regulators and technology specialists.
Clay Lacy Aviation has tapped World Kinect Energy Services to help develop a sustainability program that would significantly reduce its carbon footprint.
Airbus recently completed wind tunnel tests on a scale model of the E-Fan X hybrid-electric technology demonstrator aircraft, based on the BAe 146 RJ100.