Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
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- Bjorn’s Corner: Air Transport’s route to 2050. Part 17. April 11, 2025
- Uncertainty plagues airline, aerospace, lessor industries over tariffs April 10, 2025
The Airliner Production Problem
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By Bjorn Fehrm
September 14, 2023, © Leeham News: For more than a year, we have heard all the Airliner OEMs complain that they can’t increase production rates because of delivery problems in their supply chain. It’s a problem that is not easy to fix; it just goes on and on.
What is the root problem behind the persistent problem of increasing production of our airliners? There are specific problems for each aircraft type and time, but some fundamental problems are behind the overall problem of increasing the production numbers.
We analyze these fundamental problems in a series of articles.
Figure 1. The Airbus A321, a model which a new customer gets delivered six years from now if the production increases to plan. Source: Airbus.
Summary:
- We start describing the realities of airliner production, and what a gigantic puzzle it is.
- We also delve into the learning curve, and why it has such importance for production rates.
Bjorn’s Corner: New aircraft technologies. Part 29. Detailed design
By Bjorn Fehrm
September 8, 2023, ©. Leeham News: We described the Preliminary design phase of an airliner development program over the last weeks. Now our project is transitioning into Detailed design.
It’s the most challenging part of the project as we now go from perhaps a thousand people involved at the OEM into tens of thousands and even more people at consultancies and suppliers.
Figure 1. A new airliner family development plan. Source: Leeham Co.
Bjorn’s Corner: New aircraft technologies. Part 28. Alternative Preliminary design
By Bjorn Fehrm
September 1, 2023, ©. Leeham News: We described the Preliminary design phase of an airliner development program last week. One could say this was the classical way that aircraft projects conduct Preliminary design.
There is a different way that Conceptual and Preliminary design can be run. It’s more along the lines of pre-development of functions, as a reader commented on two articles back.
Figure 1. An alternative new airliner family development plan. Source: Leeham Co.
Bjorn’s Corner: New aircraft technologies. Part 26. Airliner development program
By Bjorn Fehrm
August 18, 2023, ©. Leeham News: We started last week to look at how to make the development of a new airliner family more efficient.
First, we describe how development projects are phased and how many people with what competencies are engaged in each phase. Then we can start the discussion of what changes can be made and what would be the consequences.
Figure 1. The JetZero Blended Wing Body that USAF partially funds to prototype. Source: USAF and JetZero.
The reality behind the eVTOL industry’s hyperbole, Part 4.
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By Bjorn Fehrm
August 3, 2023, © Leeham News: We look at the promises that the VTOL industry has made in their Investor prospects and the reality as they come closer to Certification and Production.
After looking at claims of range and utility, we now look at the operating economics. To do that, we need to predict the net sales price of these machines. We use our Aircraft Performance and Cost Model (APCM) to predict the production cost over time and, thus, the needed net sale price of the VTOLs.
Figure 1. The Archer Aviation Midnight VTOL mockup at the Paris Air show. Source: Leeham Co.
Summary:
- The VTOLs are big; the Archer Midnight is the size of a nine-seater commuter aircraft (Figure 1). Aircraft costs are related to size and weight.
- VTOLs use aeronautical production methods and supply chains for parts and systems. The production costs are, therefore, predictable.
UPDATE: Spirit says 737 manufacturing errors will disrupt deliveries through July
By Bryan Corliss
March 3, 2023 © Leeham News – The manufacturing errors its team made on Boeing 737 MAX fuselages will cost Spirit AeroSystems at least $31 million to fix, with work on the units still at the Wichita factory going on until the end of July, the company reported this morning.
But that’s just the start, Spirit executives warned.
“Additional costs are expected, including costs Boeing may assert to repair certain models of previously delivered units in their factory and warranty costs related to affected 737 units in service,” the company said in its quarterly earnings release.
The time and cost to make those repairs will have to be determined on “a unit-by-unit analysis,” Spirit said, adding that it “cannot reasonably estimate the remaining potential costs at this time.”
Repairs to the fuselages on hand in Wichita will cost $100,000 to $150,000 each, the company estimates. Spirit has revised its manufacturing process and implemented new quality controls, the company said.
Overall, Spirit reported an operating loss of $95 million for the quarter, which more than doubled its losses in the first quarter of 2022. The growing losses came even though Spirit increased revenues by 22% year-over-year, to $1.4 billion.
Spirit said that since the close of the quarter on March 30, it has received $230 million in cash advances from customers, of which $180 million has come from Boeing. It will receive another $50 million in advances later this year. Spirit is to repay those advances in 2024 and 2025.
- Some 750 737s to be inspected, may need rework
- Spirit to increase 737 rates in August, October
- Deliveries to Airbus to be down this year
- ‘Fragile’ supply chain remains an issue
- ‘Primary object is to reward our IAM colleagues’
Howmet: Supplier still cautious about rate increases at Airbus, Boeing
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By Bryan Corliss
March 3, 2023 © Leeham News – Executives at Howmet Aerospace – who got burned in 2022 when expected production rate increases at aircraft OEMs didn’t materialize – said Tuesday they’re still taking a cautious approach to ramping up their operations
However, the company – which casts fasteners and engine components for aerospace and other industries – does see signs of growth ahead.
“We remain cautious about commercial aircraft build in the second half (of this year), until we see clear evidence of consistent production rate increases,” Howmet CEO and Executive Chairman John Plant said.
Production rates at Airbus and Boeing “will be controlled by the efficiency of both the aircraft assembly lines and the supplier parts, which leads to the final production being set by the weakest link in all of the supply chain,” he added.
Howmet reported strong growth for the quarter, with revenue up 29% year-over-year, driven by sales of engine components, aerostructures and fasteners.
The company reported profits of $148 million for the quarter, which was up 13% from the same quarter last year.
- Howmet laid off workers at end of 2022
- Company hiring to support rate increases
- Howmet projects growth this year
UPDATED: Boeing says it still will deliver up to 450 737s this year
Boeing Co. photo
By Bryan Corliss
April 26, 2023, © Leeham News — Boeing says it will increase rates on the 737 line in Renton to 38 a month to maintain its plan to deliver between 400 and 450 737 MAX jets to airlines this year.
That was the first line of the company’s first-quarter earnings release, which showed Boeing lost $149 million on the quarter, on revenues of $17.9 billion.
Boeing had optimistically aimed for jumping MAX rates from the current 31 a month, as soon as June. However plans for the 737 line had been in question, after recent revelations that manufacturing problems and a software issue would cause delays in deliveries.
- ‘Gnarly’ 737 defect to take weeks to fix
- Boeing commits to MAX increases
- Improving numbers at BCA
- Supply chain issues continue, Boeing says
Howmet taking cautious approach projecting OEM deliveries for 2023
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By Bryan Corliss
Feb. 15, 2023, © Leeham News – Howmet Aerospace is taking a “cautious and conservative view” that Boeing will build 30 737s a month this year and Airbus will build 53 or 54 A320s and A321s.
That’s what CEO John Plant told investors Tuesday, as Howmet reported its year-end and fourth-quarter earnings.
That’s far more conservative than the 737 build rate that Spirit AeroSystems had projected the week prior, Plant acknowledged. Executives with the Wichita airframer project sending 42 737 fuselages a month to Boeing by the end of this year.
Howmet, which fabricates fasteners and casts pieces for aerostructures and jet engines, reported annual profit of $1.3 billion for last year, up 12% when adjusted for one-time items. For the fourth quarter, its adjusted profit was $336 million, up 13%.
- Howmet ended last year with excess inventory
- Company still projects 17% growth in Commercial
- Howmet hiring, but not everyone is sticking around
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Spirit gearing up to produce 42-a-month on 737 program by the end of 2023
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By Bryan Corliss
Feb. 8, 2023, © Leeham News – Spirit AeroSystems plans to deliver 42 new-built 737 MAX fuselages a month to the Boeing Co. by the end of this year, executives said Tuesday.
Whether that’s how many 737s Boeing is delivering to customers is not for Spirit to say, CFO Mike Suchinksi told analysts during the company’s year-end earnings call.
“What Boeing delivers to their customers is, we have no purview. That’s on the Boeing side,” he said. “We’re just trying to communicate to you what the contract schedules have been and what we expect to produce internally and what we expect to ship to Boeing and to get paid for.”
But Spirit and its suppliers still have major challenges to overcome before they can get to those higher rates, Suchinski and CEO Tom Gentile warned. The company, which struggled through a tough year in 2022, is making major cash outlays in early 2023 to acquire the people and materiel it will need to reach those higher rates, and that will weigh on profitability for the next few quarters.
- Losses doubled in fourth quarter
- Outlook: 420 737s and 650 A320s
- Some suppliers in ‘deep distress’
- Spirit hiring, but new workers need time