Leeham News and Analysis
There's more to real news than a news release.
GE’s LEAP engines shipped today should match durability of the venerable CFM56, company says
By Scott Hamilton May 27, 2026, © Leeham News: GE Aerospace says that CFM International LEAP engines being shipped now will match the durability of the venerable CFM-56. This was a goal promised when the LEAP first went… Read More
Engine Development. Part 5. The Turbofans go High Bypass
Subscription Required By Bjorn Fehrm Introduction September 15, 2022, © Leeham News: Last week, we looked at how Pratt & Whitney’s JT8D turbofan came to dominate short-haul airliners while the JT3D had the long-range market. The introduction of… 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