It’s time to replace the 737, says industry leader

June 14, 2021, © Leeham News: One of commercial aviation’s most influential leaders said last week Boeing needs to replace the 737 with a new technology airplane. Steven Udvar-Hazy, chairman of Air Lease Corp., said in a CNBC... Read More | Continue reading


@leehamnews.com | 2 years ago

HOTR: “destinations” for Boom goes bust

June 4, 2021, © Leeham News: “Overture can connect more than 500 destinations.” That’s what United Airlines said in its press release this week about its “commercial agreement” with Boom Supersonic. UAL “ordered” 15 Overture airplanes with an... Read More | Continue reading


@leehamnews.com | 2 years ago

Boeing Rehires Aircraft Inspectors

By Bryan Corliss May 18, 2021 © Leeham News — The Boeing Co. has quietly recalled at least some of as many as 900 quality control inspectors who were laid off in 2019 as part of a drive... Read More | Continue reading


@leehamnews.com | 2 years ago

Probability of getting Covid-19 in an airline cabin

October 9, 2020, ©. Leeham News: We interrupt our series about hydrogen as an energy store for airliners to go back to our previous theme for a Friday or two: Do I get COVID in airline cabins? IATA,... Read More | Continue reading


@leehamnews.com | 3 years ago

Airbus announces three zero-emission airliner concepts called the ZEROe line

By Bjorn Fehrm September 21, 2020, © Leeham News: Airbus held a webcast today, announcing three zero-emission airliner concepts called the ZEROe line (Figure 1). The two conventional designs, the turbofan airliner and the turboprop use hydrogen as... Read More | Continue reading


@leehamnews.com | 3 years ago

Adjusting Airbus and Boeing Orderbooks

LNA performs an apple to apple comparison of the Airbus and Boeing backlogs, adjusted for cancellation risks. | Continue reading


@leehamnews.com | 3 years ago

Boeing seeks to cut production costs of 787-8 to boost sales

By Scott Hamilton Sept. 2, 2020, © Leeham News: Boeing is considering production changes to the slow-selling 787-8 to lower costs and boost sales. The effort comes at a time when global passenger traffic is at record lows... Read More | Continue reading


@leehamnews.com | 3 years ago

The challenges of hydrogen for airliners (Part 5: the hydrogen tank)

August 21, 2020, ©. Leeham News: In our series on hydrogen as an energy store for airliners we start the design discussion of a hydrogen-fueled airliner by understanding the onboard storage of hydrogen better. While there is present... Read More | Continue reading


@leehamnews.com | 3 years ago

The challenges of hydrogen for airliners (Part 4: hydrogen safety)

August 14, 2020, ©. Leeham News: In our series on hydrogen as an energy store for airliners we are closing in on the design problems for a hydrogen-fueled airliner. One of the aspects we must understand before discussion... Read More | Continue reading


@leehamnews.com | 3 years ago

The challenges of Hydrogen for airliners (Part 2: Ecosystem)

July 31, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliner use we begin by looking at the needed ecosystem that can produce and distribute Hydrogen. When I was skeptical about hydrogen... Read More | Continue reading


@leehamnews.com | 3 years ago

Airbus says A350 loans now WTO compliant

By Bjorn Fehrm July 30, 2020, ©. Leeham News: Airbus CEO Guillaume Faury announced Friday that it had made the A350 Repayable Launch Investment (RLI) loans fully WTO compliant, to break the deadlock in the 16-year-old fight with... Read More | Continue reading


@leehamnews.com | 3 years ago

Boeing’s second quarter of 2020: cutting production as revenue halves

July 29, 2020, © Leeham News: Boeing presented its results for the second quarter of 2020 today. The company revenue is halved compared with the last second quarter with full 737 MAX production, 2Q2018. The reported loss was... Read More | Continue reading


@leehamnews.com | 3 years ago

Boeing finds debris left in new 737 MAXes, now in storage

By Scott Hamilton Exclusive Feb. 18, 2020, © Leeham News: Boeing recently discovered some of its stored 737 MAXes have foreign objects in the fuel tanks. The entire fleet of 400+ newly produced but undelivered MAXes is being... Read More | Continue reading


@leehamnews.com | 4 years ago

Airbus almost certain to be hurt by MAX crisis – Scott Hamilton

Jan. 6, 2020, © Leeham News: This may be the year that Airbus is hit with the negative consequences of the Boeing 737 MAX crisis. Most observers see Airbus benefitting with greater A320 family sales while the MAX... Read More | Continue reading


@leehamnews.com | 4 years ago

Boeing’s 737 in another pickle, Part 2

By Bjorn Fehrm October 8, 2019, ©. Leeham News: The FAA Air Worthiness Directive (AD) for high time Boeing 737 NGs regarding cracked rear pickle forks was issued Thursday last week. Boeing had a call with 737 NG operators... Read More | Continue reading


@leehamnews.com | 4 years ago

Fly by Steel or Electrical Wire, Part 5

August 23, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) we now look at practical implementations after discussing the authority of the flight... Read More | Continue reading


@leehamnews.com | 4 years ago

I wouldn’t hesitate to fly on the MAX after the fix

May 18, 2019, ©. Leeham News: We are now two months into the grounding of the Boeing 737 MAX because of MCAS. Boeing announced yesterday it has finished the work on the fix and it’s now ready for... Read More | Continue reading


@leehamnews.com | 4 years ago

Time to reassess the safety standards for our airliners

April 26, 2019, ©. Leeham News: In the wake of the 737 MAX crashes the standards to which Boeing and the FAA qualified and approved the 737 MAX MCAS function is questioned. FAA has called the world’s aviation... Read More | Continue reading


@leehamnews.com | 5 years ago

Bjorn’s Corner: MCAS Fix on the Way

April 19, 2019, ©. Leeham News: Boeing’s CEO Dennis Muilenburg yesterday flew with the final version of the updated MCAS software on a 737 MAX. It will now enter certification flights, having completed 120 Boeing test flights. Here... Read More | Continue reading


@leehamnews.com | 5 years ago

ET302 crash report, the first analysis

April 05, 2019, ©. Leeham News: The preliminary accident report of the ET302 crash was released yesterday. It confirmed what we wrote about earlier in the week, the pilots followed the prescribed procedure to stop MCAS. Yet they... Read More | Continue reading


@leehamnews.com | 5 years ago

Boeing MAX production cut signals long grounding

Airlines seeking interim aircraft leases of six months. At least one sees MAX grounding lasting until November. Impact to Boeing is already significant and growing. Impact on the NMA decision. April 6, 2019 © Leeham News: Boeing’s decision... Read More | Continue reading


@leehamnews.com | 5 years ago

Bjorn’s Corner: ET302 crash report, the first analysis

April 05, 2019, ©. Leeham News: The preliminary accident report of the ET302 crash was released yesterday. It confirmed what we wrote about earlier in the week, the pilots followed the prescribed procedure to stop MCAS. Yet they... Read More | Continue reading


@leehamnews.com | 5 years ago

ET302 Used the Cut-Out Switches to Stop MCAS

By Bjorn Fehrm April 03, 2018, © Leeham News: The crew of Ethiopian Airlines ET302, which crashed with 157 people on board, used the prescribed Stabilator Trim Cut-Out switches to stop MCAS, according to an article by Wall... Read More | Continue reading


@leehamnews.com | 5 years ago

Boeing didn't want to re-engine the 737

March 20, 2019, © Leeham News: With nearly 400 Boeing 737 MAXes grounded across the globe, few will remember that Boeing didn’t really want to do the MAX. Officials in 2010-2011 engineered the MAX as a fallback airplane... Read More | Continue reading


@leehamnews.com | 5 years ago

Twins or Quads

11 December 2015, ©. Leeham Co: The debate over two or four engines for long range aircraft is as old as the jet airliner. A number of myths have been pedaled over the years over the virtues of... Read More | Continue reading


@leehamnews.com | 5 years ago