The U.S. Air Force now expects to make a production decision on the MH-139 Grey Wolf helicopter in January 2023, a total slip of about 16 months.

Regional turboprop lessor Monte Aircraft Leasing has agreed to purchase up to 100 hydrogen-electric powertrains from zero-emission propulsion startup ZeroAvia for installation on new and existing Cessna Caravans and De Havilland Canada DHC-6 Twin Otters as well as Dornier 228s and HAL-228s.

Three different alternative navigation technologies have been flight tested in a regional jet and helicopter.

DLR’s climate-neutral concepts; Pantuo flies eVTOL; SAF from stover; Honeywell’s megawatt milestone; and JAXA’s hypersonic test plan.

As sustainability pressures increase, more agreements to produce and consume low-carbon jet fuel are being announced.

The supersonic startup plans a net-zero-carbon plant decked out in automation and digital tools, which will be ready in 2024.

Bombardier’s EcoJet; Natilus cargo BWB; Lilium’s refined Jet; and FAA/Daedalean on AI.

Airlines and lessors are increasingly vocal about Boeing aircraft delays.