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Articles by Open Fan
“Hyper focus on reliability and durability out of the gates”
By Scott Hamilton Sept. 11, 2024, © Leeham News: GE Aerospace and Safran advance on the CFM RISE Open Fan engine with an overriding goal: “Our customers really want us to be hyper-focused on reliability and durability out of the gates.” GE and Safran are developing a potentially game-changing engine and marketing it via the 50-50 joint venture, CFM International. The entry-into-service goal is 2035. Customer demand for reliability and durability “out of the gates” is understandable.
Leeham News and Analysis
August 9, 2024, ©. Leeham News: We do an article series about engine development. The aim is to understand why engine development now has longer timelines than airframe development and carries larger risks of product maturity problems. To understand why engine development has become a challenging task, we need to understand engine fundamentals and the technologies used for these fundamentals. We have covered the problem areas of (Figure 1) compression in the compressor and combustion.
Customer interest in Open Fan increasing, says GE
By Scott Hamilton July 25, 2024, © Leeham News: GE Aerospace advances testing and market information with its RISE Open Fan engine, which officials say is the best hope for reducing carbon footprints in the next decade. RISE includes Open Fan, compact core, hybrid-electric systems, and alternative fuels technologies and research. During GE’s 2Q2024 earnings call on July 23, CEO Larry Culp said GE continues to mature these technologies.
Leeham News and Analysis
May 17, 2024, ©. Leeham News: We do an article series about engine development. The aim is to understand why engine development now has longer timelines than airframe development and carries larger risks of product maturity problems. To understand why engine development has become a challenging task, we need to understand engine fundamentals and the technologies used for these fundamentals. In the last Corner, we looked at why Open-Rotor engines are more efficient.
Pointifications: NASA pulls the plug on electric airplanes
Some odds and ends after three weeks on the road. NASA pulls the plug on electric airplane research. NASA and Boeing’s Transonic Truss Brace Wing contract. Engines and the TTBW. July 18, 2023, © Leeham News: When NASA gives up on a project, it’s time for others to take notice. The agency is best known for space travel. But it funds and undertakes research and development for aeronautics, including commercial aviation. NASA, after all, is the acronym for National Aeronautics and Space Administration.
Pontifications: “The need for radical fuel improvements will only increase over time.”
May 30, 2023, © Leeham News: “The need for radical fuel improvements will only increase over time.” That’s the definitive conclusion of Arjan Hegeman, GE Aerospace’s general manager of advanced technology. GE is working on Performance Improvement Packages (PIPs) of its current engine lineup used on Airbus and Boeing airliners. It’s also developing the GE9X, now in testing on the Boeing 777X, and concepts of a hybrid-electric and hydrogen-fueled engine.
For next new airplane, Pratt appears to trail CFM for next new engine
Subscription Required By Scott Hamilton Feb. 21, 2022, © Leeham News: As Boeing ponders whether to launch a new airplane program and industry consensus seems to be that this must happen in 2023 or 2024, Pratt & Whitney seems to face a dilemma. Pratt & Whitney Geared Turbo Fan engine. Credit: Pratt & Whitney.
Engine OEMs pushing ahead for next airplane, even as Boeing pauses
Subscription Required By Scott Hamilton Nov. 1, 2021, © Leeham News: David Calhoun may not be anywhere near ready to launch the Next Boeing Airplane (NBA), but the engine makers are actively researching and developing engines to hang of whatever that NBA will be. Calhoun, the CEO of Boeing, repeatedly said the NBA will be more about reducing production costs through advanced design and production methods.
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