Virgin Atlantic made historical past on Tuesday by crossing the Atlantic Ocean with a jetliner powered solely by sustainable aviation gas (SAF).

Flying from London’s Heathrow Airport (LHR) to New York’s John F. Kennedy Worldwide Airport (JFK), a Virgin Atlantic 787 Dreamliner — powered by twin Rolls Royce Trent 1000 engines — turned the primary business airplane to fly a airplane throughout the Atlantic utilizing 100% SAF, fairly than conventional kerosene-based gas. It follows a comparable demonstration flight by a Gulfstream G600 non-public jet final week.

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Tuesday’s flight, which was partially funded by the British authorities, has been extensively heralded as a proof of idea, of types, demonstrating the feasibility of the aviation business’s plan to decarbonize within the coming years and a long time. Whereas the flight didn’t carry paying passengers, airline founder Richard Branson, CEO Shai Weiss, and Britain’s transport minister Mark Harper have been on board, together with different executives, politicians, and media — together with TPG’s Nicky Kelvin.

SAF is produced from waste merchandise, primarily from cooking oils, animal fat and byproducts of corn manufacturing. Whereas the fuels burn equally to kerosene and nonetheless produce emissions, the general “lifecycle” emissions are as much as 70% decrease — partly as a result of, by emitting carbon that had beforehand been absorbed by crops and animals, the fuels don’t contribute as many “new” carbon emissions into the air, versus the case when burning and producing fossil-based fuels.

Whereas business aviation generates 2% to three% of all emissions globally, in keeping with most estimates, it stays among the many most troublesome industries to decarbonize. Various vitality kinds like electrical energy stay a long time away from being developed sufficient to work for long-haul flights, and probably the most emission-heavy flights are inclined to cross oceans and continents, that means there is not any greener different methodology of transport that can be utilized.

Airways have been bullish on SAF as a part of their plan to achieve “web zero” by 2050, together with different applied sciences like direct carbon seize. Airways mission that SAF will account for roughly 65% of the emissions reductions it hopes to attain by 2050.

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Nonetheless, there are quite a few challenges to the widespread adoption of SAF. Business engines should not but licensed to fly on greater than a mix of fifty% SAF — Tuesday’s flight acquired particular approval from U.Okay. regulators, and can fly again to London utilizing common gas.

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Provides of SAF and common manufacturing stay too low to enter widespread use. It is scarce and costly, and at the moment accounts for lower than 0.1% of aviation gas used the world over, in keeping with the BBC.

Airline bosses have mentioned that widespread adoption with out authorities help could be just about not possible attributable to present prices. Within the U.S., the Inflation Discount Act of 2022 contains credit for SAF manufacturing which might be anticipated to contribute in direction of scaling up manufacturing.

Critics have additionally argued that SAF should be seen as a stepping stone, fairly than an outright resolution, given potential environmental impacts of manufacturing it, together with redirecting land for agricultural use .

Cat Hewitt, coverage director on the Aviation Setting Federation, instructed CNN the flight was extra of a gimmick than a real step ahead.

“Till now we have genuinely zero-emission know-how out there for flying, there’s actually one factor that we all know positively works to chop aviation emissions — and that is to fly much less,” Hewitt mentioned.

However, Tuesday’s flight is predicted to boost consciousness of SAF and its potential to no less than have some constructive affect, as gas producers, airline executives and engine producers proceed to work with regulators to hunt approval to make use of as much as 100% SAF on business flights.

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