Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Engine makers emphasizing durability, reliability June 4, 2025
- Boeing CEO: Lessons learned are key to certification of 737-7/10 and 777X June 2, 2025
- Digital twin is a key to JetZero’s hopes for Blended Wing Body entry June 2, 2025
- Bjorn’s Corner: Air Transport’s route to 2050. Part 24. May 30, 2025
- Does an A220-500 need a new wing and engines? Part 3. May 29, 2025
Boeing’s 777X analyzed
By Bjorn Fehrm Subscription Required Introduction January 24, 2019, © Leeham News: Boeing will roll out the first 777X flight test aircraft mid-spring. The first aircraft, the static test airframe, was rolled out in September. Flight-testing should start… Read More
Focus on NMA engines: all OEMs vying for Boeing’s approval
Subscription Required Now open to all readers. Introduction March 22, 2018, © Leeham Co.: As Boeing enters the final stretch whether to launch the New Midrange Aircraft (NMA, aka 797) market focus should shift to the engines more… Read More
Bjorn’s Corner: Turbofan engine challenges, Part 3
November 12, 2016, ©. Leeham Co: In our trip through a modern turbofan airliner engine and its technologies, we looked last week at the engine intake and the fan. We now continue with the compressor parts. As compressors and… Read More
Bjorn’s Corner: Engine architectures
4 March 2016, ©. Leeham Co: There is a saying, “There’s more than one way to skin a cat.” The same goes for making successful Turbofans to commercial aircraft. At the recent Pacific Northwest Aerospace Alliance 2016 sub-supplier… Read More
Boeing 777X heading towards design freeze a bit heavier than planned.
By Bjorn Fehrm Subscription required Introduction July 12, 2015, © Leeham Co. As we reported from Boeing’s Paris Air Show briefing, Boeing’s 777X project is progressing to a design freeze later in 2015. At the briefing everything was… Read More
Engine Alliance undertakes PIPs, but not to level Emirates wants
June 17, 2015, Paris Air Show, c. Leeham Co. Engine Alliance, one of the two power plant suppliers for the Airbus A380, said today that it is undertaking Performance Improvement Package (PIP) upgrades to the GP7200 to lower… Read More
Muilenburg’s challenges as Boeing CEO
Subscription Required. Now open to all readers Introduction Jan. 27, 2015: Dennis Muilenburg has been the No. 2 at The Boeing Co. for a little more than a year. He was named vice chairman, president and COO in… Read More
Boeing considers single, twin aisle, co-development 757/767 style for next new airplane
Subscription required. Now open to all Readers. Introduction Boeing is looking at a number of scenarios for its New Airplane Study (NAS) that would replace the 757 and 737, have ranges from 4,000nm-5,000nm, and carry as few passengers… Read More
Rolls-Royce plans for new single-aisle, twin-aisle airplane engines
Rolls-Royce may not be at a cross road but it’s certainly at a fork in the road. RR sought to be a dual-source supplier for the Boeing 777X, competing with GE Aviation for the privilege; it was generally… Read More