U.S.-based aerospace companies have submitted proposals to participate in the next phase of the FAA’s Continuous Low Energy, Emissions and Noise (CLEEN) program.

Two German companies have signed a deal to advance the commercialization of electric sustainable aviation fuels (eSAF).

Improvements cabin equipment suppliers have been studying for passenger safety and comfort may ultimately reduce the required number of flight attendants.

Certification by analysis, an approach that replaces some tests with virtual assessments, may contribute to maturing technologies faster.

Under terms of the deal, American will purchase and take delivery of 35 million gal. of SAF over three years for use at Chicago O’Hare International Airport.

Four companies are forming a joint venture (JV) to create a large-scale French sustainable aviation fuel (SAF) plant in Dunkirk, France.

KLM Cityhopper has operated a commercial passenger flight between Amsterdam and Hamburg using a 5% blend of electro-sustainable aviation fuel (eSAF).

The Helios Horizon stratospheric electric aircraft has flown powered by solid-state batteries, believed to be the first piloted flight using the fast-charging, energy-dense battery tech.