Bjorn’s Corner: New engine development. Part 7. Open Rotor Propulsive Efficiency

May 10, 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 5. Turbofan design problems

April 26, 2024, ©. Leeham News: We do an article series about engine development. The aim is to understand why engine development now dominates new airliner development when it comes to the needed calendar time and risks. To… Read More

GE Aerospace’s Q4 and FY 2023 Earnings Draw Analyst’s Short-Term Shrugs and Long-Term Cheers

By Chris Sloan Jan. 23, 2024, © Leeham News – GE Aerospace’s last earnings season before morphing into a pure play engine maker ended on a disappointing note for some analysts. “Aero results were a bit short of… Read More

SR Technics navigates surge in MRO demand, bridge to new-gen engines

Subscription Required By Judson Rollins November 13, 2023, © Leeham News: On the sidelines of last month’s Aviation Week MRO Europe conference, LNA sat down with Matthias Düllmann, CEO of engine MRO provider SR Technics. Düllmann spoke at… Read More

Maintenance cost, availability are growing concerns for OEMs, airlines

Subscription Required By Judson Rollins November 7, 2023, © Leeham News: Maintenance costs and lead times have been a growing topic in aviation circles and financial markets since last month’s Aviation Week MRO Europe conference in Amsterdam. Wage… Read More

Pontifications: Moonshot for engines for Next Boeing Airplane may have to wait

Sept. 12, 2023, © Leeham News: The Next Boeing Airplane (NBA) may be a moonshot for CEO David Calhoun, but airlines will probably be reluctant to take a moonshot on the next new engine. Service issues with the… Read More

Pontifications: One “good” engine in future for RR, faulty business strategy and model: JP Morgan

Feb. 7, 2023, © Leeham News: Our report last week about Rolls-Royce’s new CEO characterizing the company in dire straits is just part of the story. Shortly before that, on January 18, JP Morgan issued a 38-page dissection… Read More

Pontifications: A lost decade for new airplanes

By Scott Hamilton Subscription Required Dec. 5, 2022, © Leeham News: In September 2020, LNA wrote that commercial aviation was facing a “lost decade.” The impetus for this prediction was the COVID-19 pandemic crisis. “Commercial aviation is facing… Read More

Engine Development. Part 6. High Bypass goes mainstream

Subscription Required By Bjorn Fehrm Introduction September 22, 2022, © Leeham News: With the introduction of the High Bypass engine for the Boeing 747, Douglas DC-10, and Lockheed Tristar, it was obvious Pratt & Whitney’s low bypass engines… Read More

Engine Development, Part 1: Launch to Entry into Service

Subscription Required By Vincent Valery Introduction   Pratt & Whitney Geared Turbofan Aug 18, 2022, © Leeham News: LNA analyzed the evolution of commercial aircraft development timelines last month. The time between a program launch and entry into service… Read More