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
RTX Posts Steady Q3 2-25 As GTF Stabilization, Collins Strength, And Tariff Headwinds Define Results
By Chris Sloan October 21, 2025, © Leeham News: RTX delivered a solid and steady third quarter, marked by broad-based growth, improving GTF maintenance output, and continued strength at Collins Aerospace—even as tariff headwinds persisted. Company sales rose… Read More
RTX Q2 2025 Earnings: Tariff Relief, GTF Stabilization, Strong Demand, and FAA Tailwinds Lift Outlook
By Chris Sloan July 22, 2025, © Leeham News: RTX delivered strong second-quarter results, supported by continued momentum in the commercial aerospace sector, stabilization in its geared turbofan program, and a significant aftermarket ramp across Pratt & Whitney and… Read More
Bjorn’s Corner: Air Transport’s route to 2050. Part 13.
March 14, 2025, ©. Leeham News: We do a Corner series about the state of developments to replace or improve hydrocarbon propulsion concepts for Air Transport. We try to understand why development has been slow. Last week, we summarized… Read More
Bjorn’s Corner: Air Transport’s route to 2050. Part 11.
February 28, 2025, ©. Leeham News: We do a Corner series about the state of developments to replace or improve hydrocarbon propulsion concepts for Air Transport. We try to understand why the development has been slow. Last week,… Read More
RTX 2024 Earnings: Pratt Progress on GTF AOG and MRO While Preparing to Seize the Advantage; Collins Battles BFE Supply-Chain
By Chris Sloan January 28, 2025 © Leeham News: RTX chief executive Christoper T. Calio says the company’s number one priority is executing on its $218 bn backlog and meeting its commitment to customers – topped by the… Read More
3Q Earnings reports kick off this week
Subscription Required By Scott Hamilton Oct. 21, 2024, © Leeham News: Third quarter earnings reports kick off this week. The most anticipated call will be The Boeing Co. Boeing previewed a big loss for the quarter on Oct…. Read More
Bjorn’s Corner: New engine development. Part 13. The compressor.
June 28, 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… Read More
Bjorn’s Corner: New engine development. Part 10. Propeller, Rotor or Fan?
June 7, 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… Read More
GTF engine issues knock MTU off course
By Tom Batchelor February 29, 2024, © Leeham News: Problems affecting Pratt & Whitney’s Geared Turbofan (GTF) weighed on MTU Aero Engines last year but the German manufacturer still reported a solid performance in its earnings announcement on… Read More