Leeham News and Analysis
There's more to real news than a news release.
Blade-out design for CFM’s RISE; 2nd A320 line in Mobile
By Scott Hamilton Oct. 22, 2025, © Leeham News: The Open Rotor engine and its evolution, the Open Fan, promise dramatically lower fuel consumption compared with evolutions of the ducted fan engine. The Open Rotor has counter-rotating fans,… Read More
GE advances on RISE’s dust ingestion, installation testing
Subscription Required By Scott Hamilton Arjan Hageman. Credit: GE Aerospace. Oct. 16, 2025, © Leeham News: GE Aerospace has begun dust ingestion testing of its RISE Open Fan engine, the earliest it’s ever done so. The company told… Read More
Perspective on Boeing’s 737 replacement
By Scott Hamilton Sept. 30, 2025, © Leeham News: The Wall Street Journal billed the story as an exclusive, and it did contain details previously unreported. But the fact that Boeing is working on a 737 replacement isn’t… Read More
Engine makers tout “Plan A” but have “Plan B” backups in R&D
Subscription Required By Scott Hamilton June 23, 2025, © Leeham News, Paris: CFM International touts its Open Fan RISE engine as the wave of the future. (CFM is a 50-50 joint venture between GE Aerospace and Safran.) Rival… Read More
P&W: the troubled GTF will be the best engine for the next single-aisle airplane
Subscription Required By Scott Hamilton June 11, 2025, © Leeham News: Three manufacturers are designing engines that could be used on the replacement aircraft for the Airbus A320neo and Boeng 737 MAX families. Rick Deurloo, president of Pratt… Read More
Engine makers emphasizing durability, reliability
Subscription Required By Scott Hamilton Larry Culp, CEO of GE Aerospace. Credit: GE. June 3, 2025, © Leeham News: Engine reliability and durability for the next new commercial aviation engine for the next new single-aisle airplane has emerged… Read More
“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… Read More
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… Read More
Pontifications: 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… Read More