Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Boeing’s new fighter award moves away from money-losing fixed price contracts March 24, 2025
- Airbus still struggles to deliver planes on time March 24, 2025
- Bjorn’s Corner: Air Transport’s route to 2050. Part 14. March 21, 2025
- How good is the COMAC C919? March 20, 2025
- Boeing CFO Brian West: OK on tariffs for now, backlogs and inventories help March 20, 2025
Bjorn’s Corner: New engine development. Part 3. Propulsive efficiency
By Bjorn Fehrm
April 12, 2024, ©. Leeham News: We have started an article series about engine development. The aim is to understand why engine development now dominates the new airliner development calendar time and the risks involved.
To understand why engine development has become a challenging task, we need to understand engine fundamentals and the technologies used for these fundamentals. We started last week with thrust generation, now we develop this to propulsive efficiency.
Figure 1. The base engine in our propulsive efficiency discussion, the CFM56-7 for the Boeing 737ng. Source: CFM.
Bjorn’ s Corner: New aircraft technologies. Part 49. Engine Maintenance
By Bjorn Fehrm
March 8, 2024, ©. Leeham News: We are discussing the different phases of a new airliner program. After covering the Design and Production, we now look at the Operational phase of a new airliner family.
For the operational phase, the airplane must pass scrutiny for Continued Airworthiness. The biggest item in a regulator’s Instructions for Continued Airworthiness is the required Maintenance program to keep an airliner airworthy. We discussed airframe maintenance in the last article. Now, we look at engine maintenance.
Figure 1. The CFM56-7 engine for the Boeing 737NG. Source: CFM.
Re-engining the Boeing 767, Part 3
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By Bjorn Fehrm
December 21, 2023, © Leeham News: We are looking at a re-engine of the 767, a move that Boeing is considering to avoid a production stop after 2027. The present 767 engines don’t pass emission regulations introduced by the FAA, EASA, and other regulators for production and delivery beyond 2027.
We looked at what airframe modifications are necessary to house more efficient engines last week; now, we use our Aircraft Performance and Cost model to look at the economics of the original 767 versus a re-engined one.
Summary:
- New, more environmentally friendly engines give the 767 better fuel economics.
- The Cash Operating Costs improvement is affected by higher engine maintenance costs and higher underway and airport fees as a re-engined 767 is a heavier aircraft.
Pontifications: Airbus ponders A330neo MRTT, Boeing ponders KC-46A re-engine
By Scott Hamilton
By Scott Hamilton
Nov. 28, 2023, © Leeham News: In a reversal of intent, the airplane that Airbus may submit to the US Air Force for the next round of aerial tanker procurement may be based on the A330neo instead of the current production A330-200ceo MRTT.
The Air Force, however, may forego competition between Airbus and Boeing and place a sole-source follow-on order with Boeing for the KC-46A tanker, based on the 767-200ER. Boeing already has a contract for 179 KC-46As, and the USAF appears to be leaning toward a sole-source award. Political pressure from Airbus partisans and others who favor competition may prevail.
Related articles
- Airbus to develop second generation MRTT based on A330neo. (Aviation Week.)
- Lockheed Martin sees MRTT as complimentary to KC-46A
- Lockheed bows out, Airbus to continue, Boeing favored in tanker procurement
Airbus wants to discontinue production of the A330-200ceo-based MRTT. The neo-based version would be based on the A330-800. Sales of the -800 are poor—fewer than 20 have been ordered. An -800 based MRTT will breathe life into the nearly still-born model.
- Boeing considers re-engining the 767-300ERF and the KC-46A.
- KC-46A, 767-200, A330 MRTT exempt from 2027 ICAO standards.
Preview of Rolls-Royce Capital Markets Day
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By Scott Hamilton
Nov. 27, 2023, © Leeham News: Rolls-Royce’s Capital Market Day is tomorrow. “Our multi-year transformation programme will deliver a high-performing, competitive, resilient, and growing business. Join us to find out how we are going to do it and what a stronger Rolls-Royce will mean for all our stakeholders,” the company says on its website.
“Our multi-year transformation programme has started well with progress already evident in our strong initial results and increased full-year guidance for 2023. There is much more to do to deliver better performance and to transform Rolls-Royce into a high-performing, competitive, resilient, and growing business. We will share the outcome of our strategy review along with medium-term goals for the Group in November,” said CEO Tufan Erginbilgic on its website.
It has some other questions to answer, too.
An order for Airbus A350-1000s was expected to be announced at the Dubai Air Show by Emirates Airline. Another order, for a combination of A350-900s, -1000s, and A320neo, was expected from Turkish Airlines. Neither materialized—and, LNA is told, issues with the Trent XWB 97 were one reason.
Analysis: Labor issues continue to challenge aerospace industry
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By Bryan Corliss
Sept. 18, 2023, © Leeham News – One of the continuing themes we’re hearing – at investor presentations and on quarterly earnings calls – is the shortage of skilled labor, which is disrupting deliveries up and down the aerospace industry supply chain.
The inability of suppliers to deliver parts on time – or to deliver correctly assembled parts – is hampering the OEMs as they attempt to ramp up production to meet high demand from airlines.
This is not just an issue affecting aerospace. There’s a general shortage of medium- and high-skill workers in the Western world right now, with shortages of every kind of worker from line cooks to truck drivers. Shortages existed prior to the Covid-19 pandemic, and there’s still strong demand, even with economies slowing as central banks move to tamp down inflation.
The issue is more pronounced in industries that rely on high-skill workers – like aerospace.
One outcome of this worker shortage is a rise in union activism. In aerospace, we’ve seen the strike by the International Association of Machinists against Spirit AeroSystems this summer, and the near strike by members of the same union against Boeing’s defense business in and around St. Louis last year.
Next year, both Spirit and Boeing will be back at the bargaining table; Spirit to negotiate with members of SPEEA, the union for aerospace engineers, while Boeing holds talks with IAM District 751, which represents hourly workers at the company’s plants in Puget Sound and Oregon.
IAM 751, in fact, is urging members to prepare for what it’s describing as a September 2024 contract vote that will “forever change the aerospace industry.”
The environment seems to be favorable to the unions, for reasons we’ve discussed before. However, with the OEMs and Tier 1 suppliers heavily in debt (and currently bleeding red ink), there’s going to be a limit to what the companies will be willing to offer in a bid to satisfy their labor forces.
- Demand for workers remains strong
- Lack of skilled labor is hurting industry
- Boeing, Spirit aren’t strong financially
- UAW strike bellwether for next year’s talks
GE Aero sees growth through 2026, despite supply chain snags
By Bryan Corliss
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Sept. 15, 2023, © Leeham News – Demand for aircraft engines and spare parts will continue to grow in 2025-26, but perhaps at a slower rate than what the industry is currently experiencing, the CFO of GE Aerospace said at an investor conference Thursday.
“Clearly the demand is robust,” Rahul Gai, who is CFO of both GE and GE Aerospace, told investors gathered at Morgan Stanley’s annual Laguna Conference. “We are trying to ensure we meet the demand expectations.”
GE Aero plans to deliver some 2,000 LEAP engines next year, which is up from this year’s projected total of 1,700, he said. This comes even as the company continues to deal with supply chain constraints caused in part by a lack of skilled labor.
- GE Aero and Vernova on track for two-company split
- Chinese recovery driving 2023 growth
- GE sending engineers to help its suppliers
Pontifications: Moonshot for engines for Next Boeing Airplane may have to wait
By Scott Hamilton
Sept. 12, 2023, © Leeham News: The Next Boeing Airplane (NBA) may be a moonshot for CEO David Calhoun, but airlines will probably be reluctant to take a moonshot on the next new engine.
Service issues with the CFM LEAP and Pratt & Whitney GTF engines are driving airlines batty. The failures of the Rolls-Royce Trent 1000 years after entry-into-service (EIS) cost RR hundreds and millions of dollars and a confidence crisis that hurt future sales. LEAP engines are coming off wing well before initial forecasts. Every aircraft model using the GTF faced groundings as engine failures piled up.
Boeing sorely needs a successor to the 737, now in its 55th year and fourth iteration. Ron Epstein, the aerospace analyst for Bank of America, was biting in a Sept. 7 research note.
Flying a Boeing 737 is like driving a ‘68 Chevy Impala with a semi-modern dash.
“We note that Boeing continues to ride on the coattails of its past glory. The original Boeing 737 prototype first flew in April 1967, entering service less than a year later in February 1968 with Lufthansa. Fifty-five years later, the 737 airframe remains in service through a multitude of derivative models, including the most recent 737 MAX,” he wrote.
“However, we note that the model was never intended to be such a blockbuster long-term solution. Instead, the 737 was expected to be a band-aid for the Boeing portfolio to compete with the market share-winning DC-9. The Boeing fleet lacked a smaller narrowbody model to complement the company’s larger jets, like the 707. In the spirit of the General Motors model, the 737 was intended to be the ‘cheap Chevy’ of the portfolio. Fledgling carriers would operate the cheaper model before upgrading to Boeing’s large, higher-end products like the 707 and, later, the 747, which one could see as the ‘Cadillacs’ of the portfolio.
“In our view, while the longevity of the 737 is impressive, the aircraft is now a bit of an anachronism. Operating the aircraft is like driving around in a 1968 Chevy Impala with a semi-modern dashboard. It is important to note that the 737 is the only currently manufactured commercial aircraft without fly-by-wire controls, which are a staple in modern aircraft control system design.”
Epstein worked for Boeing from 1995 to 1999 as an Applied Research Scientist. He’s a technical advisor to United Airlines for the alternative energy sector.
United selects GEnx for order for 100 787s
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By Scott Hamilton
Aug. 14, 2023, © Leeham News: United Airlines quietly selected GE engines for its order in December last year for 100 Boeing 787-9s, according to Boeing’s website. The order isn’t finalized and neither GE nor United would comment.
There had been speculation that UAL might order Rolls-Royce engines as a mitigation for cancelling 45 Airbus A350-900s, which is powered exclusively by RR. United repeatedly deferred delivery of the A350s, which were ordered by previous managements. United inherited a large order for 787s when it merged with Continental Airlines and placed repeat orders for the 787 after the merger. The A350s essentially are duplicative to the 787s.
United placed large orders for the Airbus A321neo at a time when Boeing at first dithered whether to launch the New Midmarket Aircraft. UAL added to the neo order during the time when Boeing was unable to pursue any new airplane program due to the extended grounding of the MAX and during the COVID pandemic.
Pontifications: NASA pulls the plug on electric airplanes
Some odds and ends after three weeks on the road.
- NASA pulls the plug on electric airplane research.
- NASA and Boeing’s Transonic Truss Brace Wing contract.
- Engines and the TTBW.
July 18, 2023, © Leeham News: When NASA gives up on a project, it’s time for others to take notice.
By Scott Hamilton
The agency is best known for space travel. But it funds and undertakes research and development for aeronautics, including commercial aviation. NASA, after all, is the acronym for National Aeronautics and Space Administration. Boeing, and Airbus, benefitted from NASA research in the past. NASA currently is working with Boeing on the transonic truss brace wing concept (TTBW) that could redefine how airplanes are designed and look as early as the end of this decade.
So, what has NASA abandoned? Late last month, the agency pulled the plug on the X-57 electric airplane before the first flight. NASA concluded that the electric and battery technology for the X-57, a small airplane, is too dangerous. NASA wouldn’t even authorize test flights.
It’s worth noting that LNA’s Bjorn Fehrm, an aerospace engineer, called bullshit on electric airplanes in his first of a series of articles way back on June 30, 2017. Billions of dollars have funded some 200 companies pursuing electric airplanes. This is money that could have been invested in expanding production of Sustainable Aviation Fuel, the leading alternative of alternative energy projects.
The current, continued frenzy over alternative energy vehicles is like the 1990s dot com frenzy. And just as the dot com boom went bust, the day is coming soon when the alternative energy book will go bust, too.