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By Karl Sinclair
March 2, 2026, © Leeham News: With the closing of the 2025 financial year, Airbus SE (AB) estimated how many commercial aircraft it expects to deliver to customers in the coming 12 months.
Along with guidance on expected revenues, profits, and free cash flow (FCF), investors and analysts use delivery metrics to assess not only Airbus’s success but also how the heavily integrated supply chain beneath the OEM is functioning.
It only takes one missing part to keep an aircraft glued to the tarmac, and as the old adage goes, “When a supplier has a problem, Airbus has a problem.” Even when it is buyer-furnished-equipment (BFE), like interiors.
Airbus has missed its aircraft delivery guidance in each of the last three years. The company had to reduce its guidance as the lack of engines, BFE, other parts, and quality control issues combined to cause Airbus to miss its early guidance.
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How close do the estimates provided by Airbus, some 12 months out, come to reality at year-end?
Are the projections pie-in-the-sky numbers or can they be safely relied upon to provide a clear picture of the short-term future?
LNA takes a deep dive into Airbus guidance accuracy by analyzing the original projections for the previous three years, any changes that it has made to those targets, and how well those prognostications held up at year-end.
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Maintain civility and follow Reader Comment rules.
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February 27, 2026, ©. Leeham News: Last week, we looked at the development timeline for Part 25 airliner programs to reach Entry Into Service (EIS) after launch, Figure 1.
We can see that development times have doubled from the 1960s to the 1980s, compared with development since the year 2000.
The main change is the complexity of the aircraft, both in terms of highly optimized structures using new materials and avionics/flight control systems with many software code lines that require extensive verification.
We concluded that modern toolchains, with the capability to produce so-called Digital Twins, helped avoid further slip in development times, but they could not reduce them. The question then remains, can the employment of AI change this?
By Thomas Blackwood
Feb 26, 2026, © Leeham News: Rolls-Royce posted strong 2025 full year results on Thursday, with profits up and upgraded mid-term targets, as the UK-based manufacturer restated the case for its re-entry into the narrowbody engine market.
Speaking to analysts, CEO Tufan Erginbilgic said Rolls-Royce was seeking partners for the £3 billion ($4 billion) Ultrafan 30 engine development project, which will allow the company to establish itself within the large and growing narrowbody market.
Responding to media reports that he was seeking a UK government loan of up to £200 million initially to help support the development and testing of a demonstrator, Erginbilgic suggested Rolls-Royce was looking for grant funding through initiatives such as the Aerospace Technology Institute (ATI) rather than any lending facility. The ATI programme co-funds civil aerospace research and technology development in the UK.
“Let me be very clear, we are not asking for any loan from anybody, not to mention government,” he said. “It is not actually uncommon that governments support R&D, and our competitors get two-three times what we do. They are not actually loans… so we are talking about that kind of support. We don’t need any loan, but we are in a competitive world.”
By Justin Bachman
Feb. 26, 2026, © Leeham News: Boeing has seen quality rework hours on aircraft production drop 40% over the past year as its supplier base has trimmed defects, aiding the company’s recovery, Boeing’s supply chain head said.

Ihssane Mounir, the head of the Boeing Commercial Airplanes supply chain, at the 2024 PNAA conference. Credit: Leeham News.
The rework decrease through 2025 is “incredible and very significant,” Ihssane Mounir, senior vice president of Global Supply Chain and Fabrication for Boeing Commercial Airplanes (BCA), told supplier partners, speaking Feb. 11 at the annual Pacific Northwest Aerospace Alliance (PNAA) conference in suburban Seattle.
“When you think about how that happened, it’s a whole slew of things that had to happen to drive the number down that way,” Mounir said in a talk that touted Boeing’s recovery to its supplier partners after six years of crisis and production problems.
Mounir assumed the role of SVP, Supply Chain and Fabrication, in December 2022, following six years as BCA’s top sales executive.
“It’s you paying attention to quality. It’s us augmenting our quality in our engineering teams, our fabrication teams, and our support teams, and putting them with you and helping you,” he said. “It’s us increasing our engineering support and being more responsive to the changes and to the asks and the analyses that come our way.”
The prevalence of supply-chain defects and Boeing’s need to rework incoming parts and subassemblies during production had become a source of deep conflict between the company and many of its 1,200 suppliers for several years.
By Thomas Blackwood
Feb 24, 2026, © Leeham News: MTU Aero Engines saw continued growth across its divisions in 2025 with revenue at an all-time high and continued MRO momentum, according to the company’s full-year figures published on Tuesday.
Adjusted revenue for the year was up 16% from €7.5 billion in 2024 ($8.84 billion) to €8.7 billion. Adjusted operating profit reached €1.4 billion, up 29% on the previous record of €1.1 billion set last year, and adjusted EBIT margin rose from 14% to 15.5%.
Adjusted net income also reached a new high of €968 million, up 27% year over year from €764 million. The results were in line with market expectations.
MTU said the revenue growth was driven by its commercial OEM division as well as the strong demand for engine maintenance. However there are still doubts over the strength of the supply chain. MTU said that while “improvements are evident … further progress is needed” to streamline the production and procurement of parts.
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By Scott Hamilton
Feb. 23, 2026, © Leeham News: “How long until Boom goes boom?”
“eVTOLs, the perfectly mediocre over-priced helicopter.”
“We lost the battle, but we had a lower carbon footprint.”
These are just a few of the pithy comments to come out of the annual Pacific Northwest Aerospace Alliance (PNAA) conference this month in suburban Seattle.
Boom, the 88-passenger supersonic transport program, was founded in December 2014. Ten years later, it flew a demonstrator aircraft that bears no similarities to the Overture SST that the company is developing as the first passenger SST airliner since the Concorde.

The Boom Overture SST has many, many skeptics. Two were speakers at the annual conference of the Pacific Northwest Aerospace Alliance. Credit: Boom.
No established engine maker agreed to power the Overture. Rolls-Royce had an exploratory contract for a time, but bowed out. Boom cobbled together three companies to make an engine. More recently, the company is going to use the engine, whenever it works, to power energy plants.
There are few believers in aerospace who think Boom will be successful, despite raising a reported $600m-plus in funding, building a production facility and winning conditional orders from Japan, United and American airlines.
Richard Aboulafia, a managing director of Aerodynamic Advisory, said he would just “write off” Boom. Kevin Michaels, also an MD at the same consultancy, was just as direct. “We have a bet in our office going how long until Boom goes boom?”
They were no more kind toward the prospect of eVTOLs, especially the possibility of the US military using battery-powered eVTOLs on the battlefield.
LNA’s Comments Open Forum allows Readers opportunities to comment about any post (note, we said “Post”, not any “Topic”). All comments will be held for review and Moderation per our new policy. The Open Forum enables Readers to Comment on paywall articles (to the extent the paywall preview is open to all readers).
Maintain civility and follow Reader Comment rules.
A new Open Forum will be posted weekly.
February 20, 2026, ©. Leeham News: We have, since August 2025, gone through an FAA CFR 14 Part 25 development project of an airliner in the 200-seat class. The aim was to identify the activities required for such a project and the regulatory actions needed to achieve Type Certification (TC) and Production Certification (OC) for the aircraft.
The program followed the time plan in Figure 1, which indicated that it would take about seven years from the start of conceptual design to deliver the first aircraft and enter service (EIS). At each phase, we assessed whether modern support techniques, such as AI, could help with development and certification and whether they would accelerate the program plan.

Figure 1. A typical Program Plan for a smooth-running Part 25 airliner development. Source: Leeham Co.
We now summarize the findings and incorporate additional modern support, such as Digital Twin support, to assess the overall impact of today’s technologies on the program plan timeline in Figure 1. Read more
By Karl Sinclair
Feb. 19, 2026, © Leeham News: The normally reserved Airbus (AB) CEO Guillaume Faury had some strong words for engine-maker Pratt & Whitney (P&W), at the annual video conference reporting results for the 2025 financial year.
Airbus is ready to “enforce contractual rights” with regard to the engines being supplied to the airframe maker from P&W (corporate speak for “You’ll be hearing from our lawyers”), in an effort to meet delivery requirements.
The issue is centered around the resources that Pratt is deploying to remedy the problems caused by powdered metal coating contamination misstep, which is hampering production of both the A320neo and the A220 families.
According to Airbus, the engine-maker has focused more effort on addressing in-service fleet issues, while eschewing its responsibility to provide engines to the aircraft OEM for deliveries.
This is hindering Airbus’s efforts to increase production as it seeks to meet its commitments to airlines and lessors.
“On the A320 family, the continued failure to commit to the number of engines ordered by Airbus is negatively impacting this year’s guidance and the ramp-up trajectory for this year. As a consequence, we now expect to reach the rate of between 70 and 75 aircraft a month by the end of 2027, stabilizing at a rate of 75 thereafter,” said Faury.
Whether this is simply sabre-rattling to force P&W to increase production by publicly calling them out is unclear.
Faury elaborated further in the earnings call, “Pratt & Whitney has resigned from the orders we had placed, and they had accepted for the volumes in 2026. We have to base our guidance on what they tell us now they’re willing to commit and deliver. We’ll continue to work hard to enforce our contractual rights, which we believe are not respected in that case…We are not happy with the outcome, but that’s what it is today.”
These are choice words in an industry where airframe and engine makers work closely together to meet their customers’ needs.