
Airbus concepts: While SAF is expected to do the heavy lifting in aviation's green revolution, alternative technologies are developing at pace, especially for the sub-1,000-mile range flight market.

Turbofan concept: Europe's biggest airplane maker, Airbus, is betting on hydrogen to change aviation's trajectory for short- and medium-haul flight.

ZEROe: Last year Airbus revealed a trio of hydrogen-powered zero-emission airliner concepts, under the banner ZEROe, which could enter service by 2035.

Alice: Another approach to cleansing the skies comes from Washington State-based Eviation Aircraft which is behind the nine-passenger all-electric Alice aircraft, which produces no carbon emissions.

440-mile range: The aircraft, which has a range of 440 miles, is intended for feeder routes and also comes in a cargo version -- DHL Express has ordered 12 slated for service in 2024.

Award-winning: Alice's innovative interior won the "Cabin Concepts" category at the Crystal Cabin Award 2020.

Faradair Aerospace: While energy sources are still evolving, UK-based Faradair Aerospace is currently working on a design that will squeeze the maximum efficiency out of whichever fuel prevails.

BEHA: Its 18-passenger BEHA aircraft, made from lightweight composite, can carry a five-tonne payload, operate from short runways, and has a 1,150-mile range.


