Pontifications: Delays, design creep, cost overruns–nope, it’s not an airplane program

March 11, 2019, © Leeham News: It’s late. There have been creeping delays. There’s been design creep. There were unknown unknowns. It’s way over budget. No, it’s not a new airplane program, though the parallels are quite apparent…. Read More

Boeing postpones public events for 777X roll-out

March 10, 2018, (c) Leeham News: Boeing today postponed the public ceremonies planned for Wednesday for the roll-out of the 777X, following the crash of Ethiopian Airlines Flight 302, a Boeing 737-8. No date has been rescheduled.

Use caution about Ethiopian 737-8 crash/Update: China, airline ground Max

UPDATE, 4:30pm PDT: China and Grand Cayman Airlines have ground the 737 MAX. Developing. UPDATE, 6:45pm PDT: China CAAC to review grounding order on their Monday, March 11, for further action.   March 10, 2019 (c) Leeham News: The… Read More

Boeing’s 777X analyzed, Part 4

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Rolls cites timing, analysts cite poor financial condition for NMA withdrawal

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Pontifications: Doubts continue over Boeing NMA launch

March 4, 2019, © Leeham News: Another week, another NMA story. For an airplane that doesn’t exist, the prospective Boeing NMA continues to dominate much of the aerospace news. Last week’s announcement by Rolls-Royce that it withdrew—in December,… Read More

Bjorn’s Corner: Yaw stability, Part 2

March 01, 2019, ©. Leeham News: We now continue our discussion of the yaw stability of an airliner. Last week we defined the basic conditions of yaw stability. The aerodynamic side force from an angled airflow stemming from… Read More

Transcript: RR told Boeing before end of 2018 it’s out of NMA competition

Feb. 28, 2019, © Leeham News: The announcement today by Rolls-Royce that it has withdrawn from the competition to provide an engine for the Boeing New Midmarket Airplane came as a surprise. This leaves CFM and Pratt &… Read More

Shareholders OK Boeing-Embraer JV; court, anti-trust approvals next

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Airbus appears poised to launch A321XLR

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