P&W pursues “Industrial 4.0” with GTF engine improvements

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By Scott Hamilton

Aug. 18, 2025, © Leeham News: Pratt & Whitney’s long slog in fixing one technical problem after another with its marque PurePower Geared Turbo Fan engine isn’t over yet. It won’t be for another couple of years.

But during the Paris Air Show in June, those LNA talked to were optimistic that the end of the problems is in sight. And they are surprising optimistic about how well PW managed through the crisis and prospects for the future.

Top people at two firms that advise airlines and lessors on engine selection and maintenance contracts told LNA that for all the grief the GTF caused over the years, including hundreds of Airbus and Embraer aircraft grounded while awaiting new engines, PW gained a lot of traction by working with customers to mitigate revenue and cost losses.

That’s not to say that all are satisfied with PW’s response to the years-long series of disruptions. However, one advisory firm leader told LNA that PW’s Advantage GTF (the latest, advanced version, not yet entering service) will have airlines “flocking” back to PW if the engine performs as advertised.

The Advantage GTF will have 3%-4% more thrust and better fuel economy than the preceding GTF engines. Advanced materials, powders, and parts are expected to be more durable than those used in previous engines.

A revealing side note: these same advisors criticized the response from GE Aerospace for being less than cooperative and for not providing enough mitigation responses to shorter on-wing times for the CFM LEAP engine.

Pratt & Whitney’s Asheville (NC) “Industrial 4.0” plant aims to capitalize on digital, advanced manufacturing. Credit: Pratt & Whitney.

PW also has spent more than $1bn on what it calls an industry 4.0 production plant in Asheville (NC).

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Airbus’ A330neo gets better and better. Part 2

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By Bjorn Fehrm

August 14, 2025, © Leeham News: We analyze Airbus’s A330-900, the larger of the A330neos. Last week, we examined the product improvements that Airbus will roll out in the coming years, including the latest increase in Maximum TakeOff Weight (MTOW) and the resulting increase in range.

The A330 entered the market as a mid-range aircraft. With the launch of the A330neo and subsequent improvements, it is today a long-range aircraft that covers several trans-Pacific trunk routes.

How does the improved A330-900 stack up against the efficiency of the Boeing 787-9? We use our Aircraft Performance and Cost Model (APCM) to find out.

Figure 1. The A330-900 in the colors of Delta Airlines, a major operator of the model. Source: Airbus.

Summary:
  • The Airbus A330 is tested on a challenging route, LAX to Shanghai, versus Boeing’s perhaps best long-ranger, the 787-9.
  • Where Airbus can’t match the efficiency and cargo capacity of a 20-year younger 787-9, it can compensate with lower capital costs.

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Collins Aerospace continues R&D on electrical options despite industry pullback

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By Scott Hamilton

Aug. 11, 2025, © Leeham News: At the Annual General Meeting of the International Air Transport Association (IATA) in October 2021, a detailed green aviation plan was adopted to achieve net-zero carbon emissions by 2050.

The ambitious program included milestones in the use of Sustainable Aviation Fuel (SAF) and other alternative fuels. The policy was part of a greater industry effort to develop battery, hydrogen, and hybrid-powered aircraft and eVTOLs.

Some 300 companies were founded to pursue these various objectives, and many global airlines adopted environmental goals. Some placed conditional orders for eVTOLS or hybrid aircraft.

Boeing focused on SAF development while Airbus pursued hydrogen-powered concepts. GE, Safran, Pratt & Whitney, Pratt & Whitney Canada (PWC), and Rolls-Royce each have or continue to research hybrid or new engine opportunities.

Todd Spierling of Collins Aerospace. Credit: Collins Aerospace.

Plenty of skepticism about reaching the Net Zero goal emerged even at the 2021 IATA AGM. Tim Clark, president of Emirates Airline, famously cautioned, Don’t make promises you can’t keep.

Since then, Airbus abandoned its hydrogen goal. Several airlines abandoned their net-zero goals. Most of the 300 start-up companies failed, notably Lilium, which went through an astonishing $1bn before collapsing into insolvency.

One company that acknowledged the idea that aircraft can be powered by batteries alone is Collins Aerospace, a unit of RTX Corp. In an interview with LNA before the Paris Air Show, Todd Spierling, a principal technical fellow, was clear.

“We’ve been working a lot with Pratt and Whitney on electrification and what it means,” Spierling said. “One of the things we found was if you just trade out fuel for batteries, it doesn’t work out.”

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Airbus’ A330neo gets better and better

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By Bjorn Fehrm

August 7, 2025, © Leeham News: Airbus’ A330neo, as the A330-900, entered the market in 2018. It’s a major improvement of the A330ceo that entered the market in 1994 as a 270-seat 3,900nm mid-range aircraft.

The present A330-900 has gradually improved its sales, prompting Airbus to increase the production rate from the planned four per month to five from 2029.

With a typical 290-seat cabin, Airbus advertises a 7,300nm range for the 251t Maximum TakeOff Weight (MTOW) version, quite a development from the original 212t A330-300. And now this is going to improve further from 2028, with a rise in the MTOW from 251t to 253t, together with other improvements.

Does this make the A330-900 into a trans-Ocean aircraft, and how does the improved version stack up against the Boeing 787-9? We use our Aircraft Performance and Cost Model (APCM) to find out.

Figure 1. The A330-900, a model that is selling better and better, 31 years after its introduction. Source: Airbus..

Summary:
  • The Airbus A330 is like the proverbial cat; it has many lives. Just when the experts predicted it would slowly go away, it started selling again.
  • In the version where it gets another MTOW hike, it can successfully cover transoceanic trunk routes.

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Boeing adds back deferred production costs for 777X in 1H2025

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By Karl Sinclair

August 5, 2025, © Leeham News: Boeing boosted program deferrals in the second financial quarter on the 777X and 737 MAX, shifting costs around, which had the effect of improving the profit-and-loss picture for the quarter.

Boeing spent more money on a unit-cost basis (UCB) than the company reported in its earnings.

Source: Boeing 2Q2025 Financial Reports.

Using program accounting, Boeing Commercial Aircraft (BCA) claimed a loss of $557m for the quarter.  On a unit-cost basis (UCB), the amount spent to produce those aircraft delivered to airlines during the period was ~$1bn more than declared in its financial results.

However, the silver lining is that this is an improvement over the 1Q2025 UCB, when $2.933bn was lost.

This has become the typical result at BCA, where expenses are understated on the income statement, with a sizable portion capitalized and stored in Inventory.

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Collins Aerospace pacing for new materials, production for next new airplane

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By Scott Hamilton

Aug. 4, 2025, © Leeham News: As the aviation industry considers what new major airliners to develop for the next 50 years, new engines, folding wings, advanced materials, and new design and production processes will also be key.

Collins Aerospace, a unit of RTX Corp., is deep into research and development of advanced structures.

This portion of Collins’ antecedents is Hamilton-Sundstrand and B. F. Goodrich Aerospace. Each was acquired by United Technologies, the forerunner of today’s RTX.

Collins has three basic lines of business: aerostructures, landing systems, and propeller and cockpit controls.

Going back to Jim McNerney, the CEO of The Boeing Co. from 2005-2015, the company said repeatedly that its next new airplane will be as much, or more, about production than it will be about the aircraft.

A new materials airplane based on composites or thermoplastics or a similar material to replace the ubiquitous 737 needs a production rate of 60-80 a month, or even more. This can’t be achieved with an autoclave process. Boeing and NASA, the US space agency, are studying new materials processes aimed at this rate.

Airbus is conducting similar studies in Europe with EU companies.

Airbus is openly talking about launching a new airplane program in 2030 to replace the A320 beginning in 2038. Boeing is quietly understood to be operating on a similar timeline for a new program that may be aimed at a New Midmarket Airplane (NMA) category airplane.

The underlying question, then, is whether these new processes will be ready by the time Airbus and Boeing want to launch an airplane program.

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What’s the next new aircraft, Part 5

By Scott Hamilton and Bjorn Fehrm

July 31, 2025, © Leeham News: We wrap up our five-part series today on What’s the Next New Airplane in the coming decades. We now look at Airplanes 9-13 in Figure 1 below.

Figure 1. The 13 airliners we look at in the series. Source: Leeham Co.

These are the (9) COMAC 929, (10) Eco-version of New Light Twin, (11) CFM Open Fan single aisle, (12) the Boeing 787 re-engine, and (13) the Airbus A350 re-engine.

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What’s the next new aircraft, Part 4

By Bjorn Fehrm

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July 28, 2025, © Leeham News: In Part 4 of our five-part series on examining the potential next generation of aircraft in the coming decades, we take a closer look at Aircraft 5 to 8 in our Figure 1.

Figure 1. The 13 airliners we look at in the series. Source: Leeham Co.

These are the (5) GE, NASA, and Boeing hybrid airliner, (6) Airbus ZEROe hydrogen airliner, (7) Boeing’s NMA, and (8) the Boeing New Light Twin.

We examine the market for these aircraft, their technological challenges, and their potential future.

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What’s the next new aircraft? Part 3

By Scott Hamilton and Bjorn Fehrm

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July 24, 2025, © Leeham News: In Part 3 of our five-part series on examining the potential next generation of aircraft in the coming decades, we take a closer look at Aircraft projects 1 to 4 in our Figure 1.

Figure 1. The 13 airliner ideas we look at in the series. Source: Leeham Co.

These are the (1) A220-500, (2) Boeing’s Transonic Truss Brace Wing (TTBW), (3) Boom’s Overture Super Sonic Transport (SST), and (4) the Blended Wing Body (BWB) aircraft suggested by leading proponent Jet Zero.

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What’s the next new aircraft, Part 2

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By Bjorn Fehrm

July 21, 2025, © Leeham News: Our series about “What’s the next new aircraft” was introduced last week, where we look at what potential new aircraft could be introduced over the following decades, and what technologies these would use.

In Part 2 of the five-part series, we introduce some basics around aircraft efficiency and examine what areas these 13 new aircraft aim to improve to enhance their efficiency.

In the following Parts, we will look into these aircraft in more detail and write about how challenging it will be to develop and mature the needed technologies.

Figure 1. The 13 new aircraft concepts that we study. Source: Leeham Co.

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