Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Supplier Howmet exceeds expectations despite tariffs May 1, 2025
- Airbus 1Q2025 results: So far, so good, but US tariffs make future results unpredictable May 1, 2025
- Does an Airbus A220-500 need a new wing and engines? May 1, 2025
- Teamsters, Boeing have a new contract April 29, 2025
- Boeing wants to remarket China’s airplanes. It’s costly and time consuming. April 28, 2025
Bjorn’s Corner: New aircraft technologies. Part 22. Engine characteristics.
By Bjorn Fehrm
July 21, 2023, ©. Leeham News: Developments in engines and airframe technologies require that future airliners are flown differently to maximize the technology benefit.
After looking at the consequences of new developments for the airframe, we now analyze what engine developments mean for how they will be sized and flown.
Figure 1. The RISE engine from CFM. Source: CFM.
The reality behind the eVTOL industry’s hyperbole, Part 2.
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By Bjorn Fehrm
July 20, 2023, © Leeham News: We look at the promises that VTOL OEMs made in their Investor prospects and the scale-down in capabilities as Certification comes closer. We also analyze whether the reduced capabilities will be the final cuts.
In the end, it’s about how operationally useful real-world eVTOL will be and what mission they do better or cheaper than helicopters. It will decide whether the category will have a breakthrough or not.
Figure 1. The Joby Aviation S4 production prototype. Source: Joby Aviation.
Summary:
- The Investor’s presentations from eVTOL OEMs are full of “up to” for speeds and feeds.
- When we use our aircraft and eVTOL performance model, the reality is well short of the claims.
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.
Analysis: Boeing’s BCA problem
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By the Leeham News Team
July 17, 2023, © Leeham News: The Boeing Co. (BA) reports its second quarter earnings next week. The company continues to struggle with 
challenges, mostly but not entirely at Boeing Commercial Airplanes (BCA). BA has posted four consecutive years of financial losses, dating back to 2019.
Beset by issues indigenous to them, the pandemic exacerbated an already difficult situation. With a net debt load of over $40bn and annual interest payments hovering around the $2.5bn mark, it will be difficult for BA to regain financial health if their core business does not produce positive results.
LNA looks at the BCA division, how it is crucial to the long-term success of the company and the correlation it plays in regard to company profitability.
Bjorn’s Corner: New aircraft technologies. Part 21. Changed flight profiles
By Bjorn Fehrm
July 14, 2023, ©. Leeham News: Developments in engines and airframe technologies require that the aircraft are flown differently to maximize the benefits.
We start by locking what changes in parasitic and induced drag mean for how airliners fly.
Figure 1. A Truss Braced Wing airliner shall fly higher. Source: Boeing.
The reality behind the eVTOL industry’s hyperbole
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By Bjorn Fehrm
July 13, 2023, © Leeham News: We have done a deep dive series on the cost problems experienced by small airliners and how these make life difficult for alternative propulsion projects.
The eVTOL industry also faces problems, but here it’s more its own overinflated promises that rub. It’s the subject of our next deep dive.
We look at what the top OEMs promised in the past and what the reality is as they come closer to Certification.
When it comes down to it, what missions can be flown and what cannot? Are the missions that can be flown enabling a new industry?
Figure 1. The Joby production prototype as presented on 28th June. Source: Joby Aviation.
Summary:
- Investor prospects promised Total Available Markets (TAMs) as large as $500billion with flights at up to 200 miles per hour to destinations hundreds of miles away
- The reality is more profane. None of these promises hold water.
Pontifications will return July 18
Scott Hamilton is taking some time off. Pontifications will return July 18.
Analysis: Spirit strike likely a sign of changing aerospace labor market
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By Bryan Corliss
Striking Spirit AeroSystems workers blow whistles in front of one of the factory gates./Wichita Business Journal photo
July 10, 2023, © Leeham News – In case anyone had slept through all the earlier alarms going off, the whistles and airhorns that sounded during the mercifully short-lived Machinists Union strike at Spirit AeroSystems should have been a wake-up call:
This ain’t the 2010s aerospace labor market anymore.
In the labor market of 2023, hourly workers don’t want to come in on weekends. They want raises, and they’re not interested in getting paid in stock. And don’t you dare think of cutting off payments for the prescription drugs their kids need to take to stay healthy.
All this is going to create a challenge for the aerospace industry. For the past two decades, executives have focused on growing profit margins by holding down marginal costs – especially labor costs.
A decade ago, aerospace companies were able to win labor concessions by threatening to take work away.
Today, it’s the workers who seem to have leverage, and OEMs are going to have to figure out how to keep them happy and productive, or explain to the Kirbys, O’Learys and Al-Baker’s of the airline industry why their planes aren’t getting out of the factories on time.
- Tide of outsourcing seems to have turned
- Baby Bust: Fewer workers in the workforce
- St. Louis, Wichita: Red state Machinists vote to strike
- What’s next: SPEEA at Spirit, IAM at Boeing
Bjorn’s Corner: New aircraft technologies. Part 20. Efficient flying
By Bjorn Fehrm
July 7, 2023, ©. Leeham News: We explore different technologies in the series that can make our next-generation airliners more efficient and, thus, less polluting.
We have discussed developments of engine and airframe technologies, such as Turbofans versus Open Rotors and different airframe configurations to minimize drag and, thus, energy consumption.
When utilizing these developments to increase efficiency we must fly the aircraft in a different way depending on the technology.
And how we fly the aircraft is not only influenced by the factors we have discussed. We must consider factors at the airplane level, at the airliner operational level, and finally, at the airline fleet level.
Figure 1. The NMA concepts included dual aisle airliners. Source: Leeham Co.
The Small Airliner Problem, Part 10. Cash costs for a battery-based airliner
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By Bjorn Fehrm
July 6, 2023, © Leeham News: In our series on costs factors that make up Cash Operating Cost for a battery-based airliner with range extenders, we now add Crew costs and Airport/Airway fees.
We then have all the components of the Cash Operating Cost (COC) for the ES-30 and can compare it to a normal propulsion 30-seat turboprop.
Figure 1. The Heart Aerospace ES-30 hybrid 30-seat airliner. Source: Heart Aerospace.
Summary:
- The high operating weight and slow speed of a battery airliner increase the Airport/Airway fees and Crew costs for the ES-30.
- In summary, only one Cash cost remains competitive, and the COC total exceeds the cost of a 30-seater turboprop.