The new rule requires manufacturers to incorporate improved fuel-efficient technologies into airplanes manufactured after January 1, 2028. It also applies to subsonic jet airplanes and large turboprop and piston-engine airplanes that have not yet been certified, the FAA said.

• READ MORE: FAA Proposed Rule Targets Turbine, Turboprop, and Piston Aircraft Fuel Efficiency

“We are taking a large step forward to ensure the manufacture of more fuel-efficient airplanes, reduce carbon pollution, and reach our goal of net-zero emissions by 2050,” said FAA Administrator Mike Whitaker.

Among the aircraft that will be required to meet the new standards are the Boeing 777X and newly built versions of the Boeing 787 Dreamliner; the Airbus A330neo; business jets including the Cessna Citation; and turboprop transports such as the ATR 72 and Viking Air Limited Q400. The regulation does not affect airplanes currently in service. 

• READ MORE: ‘We Need to Fly Aircraft—We Don’t Fly PowerPoints’

Civil aircraft such as those listed contribute 9 percent of domestic transportation emissions and 2 percent of total U.S. carbon pollution, according to the FAA. 

The final rule, which can be found in the Federal Register, is part of the U.S. Aviation Climate Action Plan aimed at achieving net-zero greenhouse gas emissions from the American aviation sector by 2050.

The post FAA Releases Final Rule on Aircraft Fuel Efficiency for Emissions appeared first on FLYING Magazine.

The company said the completion of testing fulfills a commitment it made in 2021 to show that engine technology is not a barrier to the use of 100 percent SAF. Rolls-Royce conducted a range of ground and flight tests designed to replicate operating conditions, and in each case they showed the use of 100 percent SAF does not affect the engines’ performance.

• READ MORE: Virgin Atlantic Takes Big Step Toward SAF-Powered Transatlantic Flight

A ground test of Rolls-Royce’s BR710 business jet engine at its facility in Canada marked the end of the test program. Other engines that underwent testing include the Trent 700, 800, 900, 1000,  XWB-84, XWB-97, 7000, BR725, and Pearl 700, 15 and  10X.

“Becoming the first jet engine manufacturer to publicly confirm all our in-production engines for long-haul aircraft and business jets are compatible with 100 percent SAF is an important milestone for both Rolls-Royce and the wider aviation industry,” said Tufan Erginbilgic, CEO of Rolls-Royce. “It’s also further evidence of our commitment to becoming a net-zero company by 2050 and supporting our customers to do the same.”

• READ MORE: Stockton Airport Partners with Atlantic Aviation, Avfuel to Offer SAF on Demand

Rolls-Royce said it has also ensured the sustainable operation of its new UltraFan engine demonstrator, which made its first test run earlier this year using 100 percent SAF. Later this month Virgin Atlantic plans to make the first transatlantic flight using 100 percent SAF, with a Boeing 787 equipped with Rolls-Royce Trent 1000 engines.

“The world’s journey to decarbonizing flight is powered by British innovation and backed by the U.K. government, meaning people can continue to travel how they want, in a way that’s fit for the future,” said U.K. Transport Secretary Mark Harper. “[This] news demonstrates that Rolls-Royce and the U.K. are global leaders in decarbonizing transport, taking us one step closer to Jet Zero.”

Sustainable Aviation Fuel Gains Traction

SAF shows great promise for driving aviation’s continued improvement in fuel efficiency and emissions reduction, in part because it can be used as a simple “drop-in” alternative to conventional jet fuel. Rolls-Royce estimates that a combination of the latest, most-efficient gas turbines operating on 100 percent SAF could contribute about 80 percent of  the “total solution” for reaching net-zero flying by 2050.

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