Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- The Boeing 767 Cross Section, Part 1 November 24, 2022
- Movie Review: Devotion November 21, 2022
- China will accelerate development of its commercial aerospace sector November 21, 2022
- Bjorn’s Corner: Sustainable Air Transport. Part 46. eVTOL comparison with helicopter November 18, 2022
- The economics of a 787-9 and A330-900 at eight or nine abreast November 16, 2022
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
2022 Forecast: C919 EIS unlikely before 2023-24
Subscription Required By Scott Hamilton Introduction Jan. 17, 2022, © Leeham News: COMAC, the Chinese aerospace company developing the C919, suffered yet another setback last year. It hoped to deliver the first aircraft, designed to compete with the… Read More
Supply chain focus: Safran’ s first 2020 quarter
By Bjorn Fehrm May 5, 2020, ©. Leeham News: Next out in our COVID19 supply chain focus is Safran Group. Safran, together with GE Aviation, is the largest supplier of turbofan engines to the World’s airliners. Their success… Read More
Engine OEMs forecast big hit to aftermarket revenue
Subscription Required Now open to all readers. By Scott Hamilton May 5, 2020, © Leeham News: The COVID crisis will damage the aerospace aftermarket in ways that are only beginning to be understood. As key companies report 1Q… Read More
Pontifications: Engine problems are getting worse
May 14, 2018, © Leeham News: The engine problems are getting worse. These have moved beyond the technical issues with the Rolls-Royce Trent 1000, GE Aviation GEnx, Pratt & Whitney GTF and CFM56. The problems are trickling down… Read More
Aerion’s supersonic engine presented
By Bjorn Fehrm Subscription Required Introduction February 26, 2018, ©. Leeham Co: Aerion Supersonic’s CEO and Executive Chairman, Brian Barents, presented the first pictures of the Aerion AS2 biz jet’s engine at the recent PNAA conference in Seattle. It’s… Read More
Bjorn’s Corner: Aircraft engine maintenance, Part 1
March 3, 2017, ©. Leeham Co: We will now go through how airline turbofans are maintained. First, we will describe the typical work which is performed, then look into the markets for engine maintenance. In the markets for engine… Read More
Bjorn’s Corner: Aircraft engines in operation, Part 5
February 17, 2017, ©. Leeham Co: In our journey of an airline engine’s life, we will now look at the maintenance which is necessary to keep it fit for flight. An engine is only in top condition once in… Read More
Bjorn’s Corner: Aircraft engines in operation, Part 2
January 27, 2017, ©. Leeham Co: In the last Corner, we began looking at the in-service operation of a Turbofan. We covered how thrust and fuel consumption varies in the different phases of an airliner’s mission. Now we will… Read More