Good morning, and welcome to our half-year 2026 results. I am Jeremy Bragg, Head of Investor Relations, and I am joined today by our CEO, Tufan, and our CFO, Helen. Before we start today's presentation, I am required to show you the safe harbor statement on slide two. The full results materials can be downloaded from our website. In today's presentation, we will cover, firstly, our strategic and financial progress in the first half, the financial details of the results in detail, and our guidance for 2026. After the presentation, there will be time for questions, both in the room and also online. If you want to ask a question online, you need to do it via the online portal, and we will allocate plenty of time for that.
For those of you in the room, there are microphones in the seat in front of you, and you need to press and hold the button before you speak. Before handing you over to Tufan, we would like to show you a short film that highlights some of the best of Rolls-Royce. Thank you.
Thanks, Jeremy. Good morning. Thank you for joining us today. We are continuing to transform Rolls-Royce into a high-performing, competitive, resilient, and growing business. In the first half of this year, we delivered significant operational and strategic progress, including effectively eliminating AOGs in Civil Aerospace for the first time in a decade. A best-in-class for the industry, which provides a significant operational benefit to our customers. We are also supporting our OEM partners as they ramp up production despite supply chain challenges. Rolls-Royce SMR was selected in Sweden, underscoring our position as a global leader in SMRs. We also finalized our SMR contracts into the U.K. and the Czech Republic. We delivered strong first-half results driven by our strategic initiatives with commercial optimization and simplification across the group. Significant business improvements led to higher operating margins across all three divisions as we drive higher quality earnings and cash flows.
We achieved this despite an uncertain external environment. Our strong first-half results give us confidence to raise our guidance for 2026 and also builds further confidence in mid-term targets we set out in February. We are continuing to invest for the future growth and reward our shareholders. Today, we announce an interim dividend of GBP 0.06, and we remain on track to buyback GBP 2.5 billion of shares in 2026. We are creating a highly competitive and resilient Rolls-Royce with a diversified portfolio, strong balance sheet, and a best-in-class total cash cost to gross margin ratio. We have significant growth opportunities in both our existing and new businesses. We have delivered significantly improved operational and financial performance in the first half of this year.
Operating profit of GBP 2.5 billion was 46% higher than last year. Group operating margin was 22.5%, compared to 19.1% last year as a result of the business improvements that we are doing. In a challenging environment, we reacted quickly and decisively to the situation in the Middle East, fully mitigating the direct impact to the business. Together with our strong progress in the first half, this has allowed us to raise our guidance for the full year. Let me give you some insight into the drivers of our performance. We have higher operating margins in all three divisions. Civil Aerospace operating margin was 25.3%, reflecting three main factors. Stronger aftermarket performance, mainly driven by higher LTSA margins and increased shop visit volumes.
A significant contribution from contract catch-ups reflecting the sustainable improvements to the business we are making through commercial improvements and efficiencies, alongside continued onerous provision release, and increased time and materials profit. Defence operating margin was 21%, reflecting a stronger aftermarket performance across transport and combat, supported by lower shop visit costs and manufacturing efficiencies, alongside a strong contribution from profitable international sales and an increase in flying hours. Power Systems operating margin was 20.3%, where we continue to improve the quality of the business. In power generation, stronger performance was driven by data centers as we captured volume growth with an improved mix and commercial optimization benefits. In governmental, where we have strong positions across land and naval, we drove continued aftermarket profit growth. Across the group, our cost efficiency program continues to deliver.
Free cash flow of GBP 2 billion was 24% higher than last year, primarily driven by higher operating profit. A return on capital rose by 5.1 percentage points to a best-in-class 22%, again driven by higher operating profit. This slide focuses on how we are driving higher Civil Aerospace LTSA margins, a key driver of performance improvement to the midterm and beyond. The left-hand chart shows that we are driving higher contract and LTSA margins over time across our in-production engines. As a reminder, the top line is the average margin across all signed contracts, even if the engines are not yet delivered. This is a leading indicator for the second line, which is the LTSA margin booked in our income statement. Our actions to deliver commercial and operational improvements across our aftermarket contracts are driving significant year-on-year growth in both contract and LTSA margins.
In February, we told you that we expected a 19 percentage point increase in our contract margin and a 28 percentage point increase in our LTSA margin between 2022 and 2028. We are continuing to deliver on this. In addition, we are improving these contracts further, as shown by the red dots on the chart. Compared to what we set out in February, we are deriving a three percentage point improvement to our contract margins and a 1 percentage point improvement to our income statement margins in 2026. The three percentage point improvement in contract margins is mainly driven by new contracts coming in with better profitability. The 1 percentage point improvement in LTSA margin is driven by contract improvements, which are mainly operationally driven.
It is worth remembering that even by 2028, only half of our in-production LTSA contracts will be on new commercial terms, which means there will be a sustained benefit beyond 2028 as more contracts come in with higher margins. As well as improving the margins of our in-production engines, we are also driving higher margins across our mature engine portfolio and business aviation. The right-hand chart focuses on time on wing, a key driver of LTSA margin improvements and stronger cash flows over time. Our time on wing programs is progressing well, and we continue to target more than 100% increase in durability across our in-production engines, which offers a significant operational benefit to our customers. At the end of the first half, the majority of this improvement target has already been achieved.
All our time on wing improvements will be complete by the end of 2027, which will leave us with a highly competitive engine portfolio. I will now talk to our time on wing program progress by engine. The phase I and II HP turbine blade modifications for the Trent 1000 XE were certified last year. Phase I will deliver more than 100% increase in time on wing, with an additional 30% increase from phase II. Depending on the operation, these packages can deliver up to a 3x improvement in time on wing. Almost 50% of the eligible fleet has now been upgraded with the new HPT blades, bringing them to the new Trent 1000 XE standard. The Trent 7000 also benefits from the same HPT blade improvements. We have now largely upgraded the fleet and accumulated almost 3 million engine flying hours with the new blades.
The phase I improvements have been performing very well in service for over three years, delivering up to a 3x increase in time on wing. This gives us further confidence in the Trent 1000 XE upgrades. On to XWB-84. We have split the improvement program to accelerate its delivery. We pulled forward the planned life extensions for critical LLPs and remain on track to certify the remaining LLP life extensions by the year-end. The XWB-84 EP builds on the performance of the world's most efficient large engine in service today. The first EP engine entered service last year with Delta Air Lines. The EP delivers a fuel burn improvement of 1.8% compared to the baseline XWB-84, far above the planned 1% improvement, as well as building on its industry-leading time on wing. For an airline, this fuel burn improvement represents an annual saving of $450,000 per aircraft.
In the current environment, it is going to be higher than $450,000. The XWB-97 engine is already the most utilized engine in the industry in terms of average hours flown per day. Our improvement program remains on track, with the enhanced engine to enter service in 2028. These improvements have been subject to a rigorous testing program, with more than 20 rig tests completed, alongside evidence analyzed from more than 300 shop visits of the current in-service engines. Key pieces of technology such as the combustor and the ceramic matrix composite seal segment have been proven through testing. This was the TRL6 stage. We are now proving out the durability of the whole engine, including a durability test representative of the harsh and sandy operations that it will face.
Following this ground test program, we will flight test and certify the engine next year ahead of a 2028 entry into service. We are continuing to evolve the Trent XWB-97 engine, including for Project Sunrise, our partnership with Airbus and Qantas, where our engines will power ultra-long-range services with the Airbus A350. The first non-stop Project Sunrise test flight from Australia to Europe landed earlier this week. The full cash benefits of our Time on Wing program will not be realized until significantly beyond the midterm, as we have set out before. In total, only 25% of the cash value that we created through improving our LTSA contracts and only 30% of the cash value of our OE renegotiations will be realized by the end of 2028. Most of the cash flow will come after that. We continue to deliver strong, disciplined progress across our four strategic pillars.
I have already talked about how we are driving higher LTSA margins. I will now cover some of our other key achievements. First, Power Systems. We are continuing to capture profitable growth in power generation and governmental. In power generation, we are seeing increasing demand for both backup engines and gas engines for use as a prime power source for data centers. As a result, we now expect 25% per year growth in power generation OE revenues to 2030, compared to our previous target of 20% growth to 2028. This reflects strong backup growth alongside growing demand for our gas engines for prime power use. Prime power today represents less than 10% of our power generation business. This percentage will rise because we expect a significantly faster growth in prime power sales compared to backup. This is supported by our continued investment in capacity expansion.
These gas engines for prime power will generate significantly more aftermarket revenues over the course of their life than an engine that is used for backup power. This will support strong aftermarket growth beyond the midterm. We are continuing to invest in our next-generation engine to replace Series 4000 that targets the data center market with increased power density. This remains on track to launch in 2028. In governmental, we now expect growth of 20% per year to 2030, compared with our previous target of 20% growth to 2028, supported by continued strong order inflow. Second, operational effectiveness, where we have delivered significant improvements in the first half. In Civil Aerospace, we effectively eliminated AOGs, which provides a significant operational benefit to us and to our customers. Here, we are setting a new standard for the industry and differentiating ourselves from competition.
This has been supported by improved operational performance across our MRO network, where we are driving towards best-in-class performance. In the first half, we increased large engine MRO output by 13%, with a 35% year-on-year increase in refurbs. We have restructured our aftermarket operations to build greater operational resilience for our customers and optimize costs through network efficiencies. We are expanding our repair portfolio to reduce cost of ownership and improve turnaround times. We also launched our first Trent XWB-84 near wing line in Hong Kong, enabling targeted repairs that maximize time on wing. Third, Trent 1000XE. Here, our time on wing investment is already starting to deliver clear commercial benefits. Improved durability and our good aftermarket service offering have resulted in positive commercial momentum. Trent 1000XE has now been selected by three airlines, including LATAM Airlines, who we are welcoming back as a Trent 1000XE customer.
In addition, we have several significant ongoing sales campaigns for the Trent 1000 XE. Fourth, in Defence, where we are a clear beneficiary from the recent UK Defence Investment Plan. We are cementing our position as a global leader in autonomous propulsion, a market with significant growth potential. The UK Defence Investment Plan, which includes a GBP 9 billion multi-year commitment to GCAP, gives us strong visibility of GCAP's funding to 2030. It also further underpins the outlook for AUKUS. In autonomous, there were a number of important milestones in the period. The US Navy conducted the successful first flight of the MQ-25A Stingray unmanned aerial refuel vehicle, powered by our AE engines. In the U.K., the Defence Investment Plan included a commitment to spend GBP 5 billion on autonomous platforms over the next four years.
We are also under contract in Germany to design a scalable core engine concept capable to be adapted for multiple autonomous platforms in medium CCA class, which we aim to complete towards the end of the year. Finally, Rolls-Royce also benefits from the commitments made at the recent NATO summit, including for Saab, GlobalEye, and MQ-4C Triton. Fifth, efficiency and simplification. The first phase of our efficiency and simplification delivered GBP 600 million of benefits between 2023 and 2025. We are now underway with the second phase of the program. This includes more than 20 work streams. Let me talk about a few of them. We are accelerating the rollout of group business service centers and progressing our transformation of sales, inventory, and operational planning, alongside going further in lean manufacturing to derive higher productivity.
Work streams are also focused on other multiple different cost lines, including logistics and increased efficiencies from further digitizing our business. In addition to driving cost efficiencies using digital and AI, we are also building a digital thread across Rolls-Royce from engineering and MRO through to the supply chain. We are gathering dispersed engineering data into a strategic asset for better, faster decision-making and deploying tools to improve our operational execution. We are rolling out AI agents in our MRO network to predict work scopes and schedule shop visits to reduce turnaround times and shop visit costs. Finally, Rolls-Royce SMR was selected in Sweden for three units. We have been successful in every competitive tender in Europe and are uniquely positioned to become a global leader in SMR. In the U.K. and Czech Republic, we have now signed the contracts and entered the execution phase.
In July, we signed an MoU with ČEZ and the Czech government to enable the preparation of two further sites. We see significant demand from other countries, including the U.S. This supports our ambition to scale up to commissioning two SMRs per year in the mid-2030s, rising to eight per year at maturity. Rolls-Royce SMR has more firm contractual commitments and a clearer order pipeline than any of its listed or unlisted competitors and is already starting to generate revenues and profits. Now I'm going to turn over to Helen.
Thank you, Tufan. Good morning, everyone. We've had a very strong start to the year across all three of our businesses. They have responded to the dynamic environment with agility and pace. We have continued to execute on strategic initiatives, continued to improve operational performance, and continued to drive rigorous performance management. A clear demonstration that we are sustainably transforming Rolls-Royce into a high-performing, competitive, resilient, and growing business. Let's look at the financial highlights. Double-digit profit and cash growth across every division, with all three delivering strong margin expansion. The balance sheet is resilient, and we continue to reward our shareholders with growing distributions. Group revenues, they grew by 26% to GBP 11.3 billion with strong end market growth across all divisions. Group operating profit grew by 46% to GBP 2.5 billion, driven by our strategic initiatives, including commercial optimization and cost efficiencies.
Operating margin grew by over 3 percentage points to 22.5%. Free cash flow, it grew by close to GBP 400 million- GBP 2 billion, with cash delivery primarily driven by higher operating profit. Strong cash flow in the period meant that we closed the half year with a net cash position of just over GBP 2 billion. That's the resilient position to operate from given the current macroeconomic environment. Return on capital, it was 22%, a best-in-class performance. The strength of these results has enabled us to declare an interim dividend of GBP 0.06 per share as we follow through on our capital frame commitments. Now let's go to the detail by division, starting with Civil Aerospace. Civil delivered the largest year-on-year improvement in operating profit and cash.
As you can see in the bottom right of the slide, all key operating metrics grew as we continued to focus on operational execution. OE deliveries of 279 were 18% higher as we further improved supply chain resilience and supported our OEM partners as they ramped up production. End-market demand also remained strong. These deliveries included 157 large engines, almost 30% higher than last year, and 122 in business aviation, 6% higher than last year, which were all Pearl as we ramped up new platforms. Large engine flying hours or EFH. They grew to 113% of 2019 levels, a 4% increase year-on-year, despite some disruption from the Middle East conflict. In the first half, our fleet has continued to grow faster than the wide-body market, an important driver of future EFH growth. Business aviation and regional flying hours.
They remained strong throughout the period, 9% higher than last year and in fact, ahead of budget. Shop visits. They grew to 712. Of these, 294 were large engine refurbs. That's 35% higher than last year. Higher shop visits were supported by our actions to further strengthen the supply chain and our MRO network improved, where we drove improved operational performance and benefited from our investments to expand capacity. All of which supported a three-week improvement in turnaround times for first refurbs in our main overhaul bases compared to last year. You can see this strong operational performance in Civil's financial results. Operating profit grew to GBP 1.6 billion, a 31% increase year-on-year. Operating margins grew to 25.3%. Three key factors drove that higher operating profit. First, strong large engine aftermarket profits where service revenues grew by more than 30%.
Profit growth was driven by a higher average LTSA margin, a higher number of large engine shop visits, which included substantially more refurbs and higher time and material profits. It is worth pausing for a moment on the benefits of our total service model and how it gives us strong visibility and control over shop visits. Under this model, we have discretion over when engines come into the shop and the work scope to be done. This gives us flexibility to optimize MRO schedules and adapt to different scenarios, all of which we do working closely with our customers to keep their fleet serviced and flying. The second driver of profit growth was net contractual margin improvements. They were GBP 497 million. That compares to GBP 288 million in the first half of 2025. The GBP 497 million comprised a net benefit of GBP 125 million in onerous contracts and GBP 372 million from catch-ups.
We made good progress renegotiating onerous after-market contracts, allowing us to release provisions in the period. As we drove commercial and operational improvements across both widebody and business aviation, we benefited from contract catch-ups. All of this contributed to a gross benefit of GBP 574 million in the period. This was partially offset by an additional charge of GBP 77 million, which was taken across both onerous and catch-ups due to supply chain related product cost inflation. Just to be clear, we do not expect such a high level of contractual margin improvements in the second half. It is worth a moment on the supply chain. Product availability is continuing to improve, but product cost inflation remains an industry-wide challenge, especially in areas such as rare earths and elementals. We continue to proactively strengthen our supply chain.
For example, we have forward bought to build buffer stocks, and we are also opening alternative sources of supply for specific products and materials. Finally, the third driver of profit growth was business aviation, with higher aftermarket profitability, driven by a stronger mix of shop visits and higher time and material profits. Moving to cash. Civil delivered a trading cash flow of GBP 1.5 billion. That compares to GBP 1.1 billion in the prior period. A very strong performance in the current environment. Increased cash flow was primarily driven by higher operating profit. Working capital was well managed, and the LTSA balance growth was lower than last year, which I will come back to in a moment. In summary, highly competitive results across all financial and operational metrics in Civil. Defence, where we saw strong profit and cash growth in the first half, driven by aftermarket and self-help actions.
As you can see from the slide, revenue growth was strong across all sectors as we captured growing demand for both mature and new programs. Order intake in the period stood at close to GBP 2.5 billion, with a book-to-bill ratio of one, and order backlog was GBP 17.5 billion, equivalent to over three years of revenue, with order cover for the remainder of the year approaching 90%. Strong order backlog, alongside recent commitments made in the U.K., U.S., and Europe, give us confidence over future demand for our existing portfolio of profitable products, including the EJ200 and AE engine family. Alongside the new ramp-up of platforms, such as the growing opportunity from autonomous that Tufan spoke to earlier. The financials. Operating profit grew to GBP 522 million. That is almost 60% higher than last year.
Operating margins grew to 21%, with our highest margin sales to markets outside of the U.K. and the U.S. Three factors drove that increase in operating profit. First, strong aftermarket performance across both transport and combat, supported by our actions to reduce shop visit costs and drive manufacturing efficiencies, a stronger contribution from profitable international sales, and a benefit from higher flying hours. Second, the benefits of continued self-help, including sustainable cost efficiencies as we drove improved productivity and tighter operating cost control. Third, good submarines growth as activity continued to ramp up. Cash flow. It stood at GBP 615 million. That compares to GBP 327 million in the prior period. Higher cash flow was driven by operating profit growth, as well as some benefit from customer advances. A very strong delivery from Defence, capturing demand from existing portfolio of profitable products while positioning us well for future growth.
Power Systems. Another very strong performance in the first half as we continue to drive profitable growth across both power generation and Governmental. Our differentiated products and services are enabling us to capture strong market demand. Order intake of GBP 4.6 billion was more than 50% higher than last year, with a book-to-bill ratio of 1.8x . Powergen order growth was even higher, driven by data centers, which included growing demand for gas engines for prime power use. Looking at our order book for the remainder of the year, we are fully covered with a growing firm order cover for 2027 and 2028, and with Powergen's multi-year framework deal structure, we have increasing visibility and growing orders up to 2030. Looking at the financials. Operating profit grew to GBP 528 million. That's a 72% increase year-on-year, with operating margins growing to 20.3%.
That 72% increase was driven by an excellent performance in Powergen, where we continue to capture strong volumes with growing revenues of 41%. Within this, data center revenue grew even faster. We are capturing this growth with higher profitability due to continued commercial optimization and an improved product and customer mix. Indeed, we are seeing stronger growth from hyperscalers who want our higher power density engines with additional systems across multiple regions. With our global account management approach, it means we are well positioned to be their partner of choice. Next, a strong performance in Governmental, where we are on key NATO platforms and continue to capture growing European Defence spending. Governmental revenues grew by 25%, driven by both OE and aftermarket growth. Finally, we continued to manage costs well, including product costs. Cash flow.
It grew to GBP 507 million, around GBP 100 million higher than last year, driven by higher operating profit alongside higher investments and working capital as we supported disciplined business growth. In summary, another very strong performance from Power Systems. Turning to the funds flow. We delivered GBP 2 billion of free cash flow in the period. That's almost GBP 400 million higher than last year. The principal driver of increased free cash flow was operating profit, which grew by GBP 800 million. Other factors included net investments. They were over GBP 100 million higher than last year. Investments in Power Systems, in engine development, and capacity expansion are just some of the areas where we continue to invest to underpin future growth. The Civil net LTSA balance. It grew by just under GBP 100 million. That compares to nearly GBP 500 million in the prior period.
There are a number of moving parts that drove that lower LTSE balance growth. A higher number of engine flying hours and growth in the normalized engine flying hour rate, which were largely offset by a higher number of shop visits, which included higher number of refurbs, a higher LTSE margin, which led to higher realizations in the P&L, and finally, a high level of catch-ups in the period as we drove sustainable operational and commercial improvements across aftermarket contracts. It's important to remember that positive catch-ups reduce the LTSE balance, and that those improvements ultimately drive higher LTSE margins and sustainable cash generation. Turning to working capital. It was broadly similar to last year, with inventory and receivable days both improving year-on-year. A strong performance in the current environment and as we continue to build supply chain resilience, forward buy key products, and support revenue growth.
Cash tax increased to GBP 525 million, GBP 270 million higher than the prior period, reflecting higher profits and the timing of payments. We have now worked through the last of the remaining overhedge position, which was a minimal outflow in the period. Tufan will talk to 2026 guidance, but let me give you some detail on our cash outlook. We expect the 2026 net LTSE balance growth to be below the 2025 level. This reflects large engine flying hours towards the lower end of the 115%-120% range of 2019 levels, a higher normalized engine flying hour rate, the impact of a higher number of shop visits growing to between 1,480-1,550, with more refurbs, including Trent 1000s and XWBs, and a higher level of catch-ups year-on-year. In addition, we still expect a cash impact of GBP 150 million-GBP 200 million from the supply chain.
Other cash items to note. Year-on-year, we expect a higher level of net investments, with them more weighted to the second half as we continue to invest for growth, including additional capacity in Powergen, given the stronger outlook we now see. An outflow in provisions as we continue to progress commercial renegotiations. With higher profits, we now expect higher cash tax costs for them to be around GBP 300 million higher for the year. Capital frame. Our approach to capital frame remains unchanged. We continue to strike a balance between preserving a strong balance sheet, delivering competitive returns to shareholders, and retaining financial flexibility for investment opportunities. If we look at the balance sheet, we are in a net cash position of just over GBP 2 billion at half-year, a resilient place for us to operate from. In the period, we repaid GBP 1.1 billion of bonds.
We also issued EUR 1 billion of new bonds, allowing us to extend maturities and maintain a presence in the bond market. We were delighted by the level of support for our first bond issuance since 2020, which was significantly oversubscribed. A thanks to all who participated. The credit rating agencies continued to recognize our progress with Moody's and Fitch both upgrading us to A3 and A- respectively in March, and with S&P recently reaffirming our BBB+ rating and moving us to a positive outlook. Distributions. We're announcing an interim dividend of GBP 0.06 per share, representing a distribution to shareholders of approximately half a billion GBP. As of today, we are more than halfway through our GBP 2.5 billion share buyback for 2026, the remainder of which will be executed across the balance of the year.
Taken together, the dividend paid to shareholders in June and the interim dividend that we're announcing today, along with the 2026 share buyback, represents a return to shareholders of GBP 3.4 billion. That's a distribution of almost 90% of our 2026 free cash flow. All of which we are delivering as we continue to increase net investments across the group. To close, first-half results have been strong across all divisions and all key metrics. Our strategy is delivering, and the teams are doing an outstanding job. I would like to thank them for all their hard work and commitment. There is still much more to do as we realize our full potential and continue transforming Rolls-Royce into a high-performing, competitive, resilient, and growing business. With that, let me pass you back to Tufan.
Thanks, Helen. A strong first half delivery across all divisions gives us confidence to raise our guidance for 2026. We now expect underlying operating profit of GBP 4.7 billion-GBP 4.9 billion, with a year-over-year improvement across all three divisions. The increase in guidance is driven by, first, higher LTSA margins and increased level of contract catch-ups, driven by the commercial and operational improvements that we are making across Civil Aerospace. Stronger power generation profitability and higher Defence aftermarket growth. As Helen mentioned, we expect a lower contribution in the second half of the year from commercial improvements in Civil Aerospace. We expect free cash flow of GBP 3.8 billion-GBP 4 billion. This includes a GBP 150 million-GBP 200 million supply chain headwind, which will be lower in 2027 and will be gone by the midterm.
To close, let me now talk to how we are well-positioned to step up on delivering on the Rolls-Royce proposition. I just want to give you a different lens into what we have been doing. We are creating a resilient, competitive, and diversified business with significant growth potential. This is being driven by transforming Rolls-Royce operationally, financially, and strategically, and embedding a distinctive performance culture. Operationally, we are creating a business with best-in-class safety and operational effectiveness. We are improving our products and technologies to their best in a relatively short period of time, and therefore, delivering the best customer service. We have effectively eliminated AOGs and are meeting the needs of our airline and airframer customers, and improving products and operational focus. This differentiates us from our competitors and delivers value to Rolls-Royce. Financially.
We are building a highly competitive, resilient, and diversified business with a high quality of earnings. Across all our businesses, if you look at our operating margins of our businesses. In the first half of 2026, we delivered significant underlying performance improvement. This has resulted in increased operating margins across the group, alongside a higher return on capital, and has been delivered despite a challenging external environment. These results, and our raised guidance for 2026, gives us increased confidence in the delivery of our midterm targets. I want to pause here because many of you probably are now reflecting on our midterm targets. Just to give you a sense how you may want to hold it. Okay. First of all, it is very clear that all three businesses are delivering underlying performance improvement. When I say underlying, that means sustainable. That is happening.
Second, though, we have some contract improvements in Civil Aerospace, you need to actually differentiate them. If you are comparing year-on-year onerous ones, actually this year onerous is lower than last year. Onerous comes with zero revenue, therefore has a big leverage on operating margin. We told you, I think onerous contracts, I expect some more next year, but not in midterm. Catch-ups, on the other hand, which was the majority this time, as long as we continue to improve the business, I believe we will, our catch-ups, at least at some level, will continue to be there. Right? Hold it that way. I also said it many times. I don't know how much it is sinking in. If you are looking at what we do, ignore how we run the business, you will never understand our results. How do you actually exceed these things?
We changed the way we run the business. Teams are not running after a budget. They are tasked, they are incentivized, to deliver strategic progress year-on-year. That means improve the business every day. Proxy to that is year-on-year profit improvement, obviously. Right? If you are doing that, all underlying, though, right? This way, we are expanding the potential, accelerating the delivery. I always said, for the same reason, they are not linear. With this context is important in the sense of what we are doing. Given the progress we made in the first half, and therefore we actually increased the guidance, we may revisit our midterm targets. That's how I would like you to hold it. The majority of the benefits of our strategic initiatives are still to come. For example, LTSA margin improvement and contract renegotiations.
Finally, strategically, we have delivered significant strategic progress this year. For example, the selection of Rolls-Royce SMR in Sweden and two contracts already signed in the U.K. and Czech Republic underscores our position as a global leader in SMRs. Our transformation has created a business with significant growth potential in the midterm and beyond. I really believe we have unmatched potential for growth for the following reasons. We have positioned Rolls-Royce to benefit from key global trends, including world GDP growth, higher Defence spending, digitalization and AI, and energy transition, including a nuclear renaissance. To further support this agenda, two more things I will mention. We are now underway with the second phase of efficiencies and the implementation of a digital thread across the group, including generative and agentic AI, to unlock significant value as the business grows.
I am proud of the Rolls-Royce team and what we have delivered so far. I am even more excited about what we will deliver in the future. Thank you for listening. We are going to open it up for questions. Okay. I'll come to you next.
Thank you very much. It's Ian Douglas-Pennant at UBS. Having a fight with the microphone. Thank you for the presentation, congratulations on another good set of results. Thinking about the Civil market, are you seeing any indication of behavior or changes of the customers, of the airlines, in response to the higher flight price? Given the way, as you say, you structured the business slightly differently to, or the contracts slightly differently to other engine makers, what would be the early indicators that you would look at internally to give you an idea of what might be coming next year? Secondly, on the catch-ups. These are somewhat larger than I think you expected. Why is that? Maybe you could, Helen, give us an outline of the process by which you review the accounting assumptions here.
Is that an annual process, or just give us some idea. Thank you.
Okay. I think Civil improvements. I think your first question is how do I see the flight business? I think flight cancellations, frankly, once Middle East happened and flight prices went up, et cetera, I get twice-a-week report. It tells me everything going on in the world. How many flight cancellations, in what geography, obviously ours, market. I have a pretty good idea, on an ongoing basis, what is going on. We said it in trading update, that continues to be true. Vast majority of flight cancellations, actually narrow body. Yes, there was a smaller percentage, much smaller percentage, also wide body. If I take it to Rolls-Royce, our big impact was more some of the Middle East players, and you know which airlines. Obviously, especially March, April, then there was a recovery period after that.
Given I look at weekly report, I look at yesterday, Middle Eastern players mostly recovered. Okay? Therefore, I think flight cancellations, yes, it impacts us, but not as much as narrow body impact. I think when you say, "Okay, what do you think about next year?" Obviously, we are in an uncertain world, so depending on scenario, my answer may change. I think couple of things I will say. We actually manage our destiny ourselves because of this total care contracts. For example, we said it in trading update. We don't expect any shop visit schedule change because of Middle East. We now actually stabilized the business, we optimized the business. We will continue to optimize. I actually chair an optimization meeting every two weeks. That optimized the whole system. I don't mean we are in constant shop visits, but we optimize it.
Because you actually stabilize the business, because so far admittedly, our only focus was on customers. Let's eliminate AOGs. When you stabilize the business, you actually optimize it for profit and cash as well, better. What are the early signs? As I said, it's not even weekly. Every other day, I get this, and we look at it holistically. I look at even the flight price and so on, given my history, all that, how is the aviation fuels market is going, all that stuff. We look at multiple things. Obviously, we will look at retirement. So far, there is no hint of it, and I have a view that you extrapolate retirements from the early experience. I think you will end up in the wrong place because economics of retiring a plane right now is very different than what it was.
Because in supply chain-constrained environment, economics is very different than non-constrained environment. I don't actually expect retirements, and their level is very low. Flight cancellations, we continue to look at. Frankly, that is a factor, but I don't worry about it. If I was running narrow body, probably I would worry about it a lot more. Catch-ups. I think, yes, they were actually more than we expected, but we expected them. Let me give you an examples, and I'm not going to go into accounting because actually this is business proposition rather than accounting. I really believe that. These are genuine business improvements. I'll give you an example. Because you stabilized the system, now you can optimize your lease engines. You had to allocate previously to eliminate an AOG. Now you don't have to. That improves that contract. Yes. Did I expect that?
No, because that's dynamic optimization you go into, right? I'll give you another example. Yes, you see only onerous contracts, but I said it in one of the presentations, we have low-margin negotiations that team actually does. Some of that come through, okay? I.e., commercial improvements in the contract. When they come, they sort of create catch-up, not onerous. Third thing, business aviation is big part of catch-ups this half. We had this program that we put in place to upgrade our customers to the next corporate level, and that came more than we expected. When you high grade, your margins improve, your contract improve. Obviously, you give them better service and more service, et cetera. Going forward, how should I think about catch-ups? You should think that we will continue to have catch-ups.
I cannot tell you they are going to be at this level, at that level, because when you are continuing to optimize the business with value stream framework, I said it last time, we run the business very differently. You intervene in the business constantly. Constantly. Some people think, "Tufan, this is long-cycle business. How do you actually" Yes. Long cycle, if you design engine and so on. It's not long cycle in this optimization. It is actually every 15 days. It is there. That's how I would actually answer that. I promised here, I'll come to you.
Thank you very much. Sam Burgess at Goldman Sachs. Maybe one for Helen and one for Tufan, if that's okay. Firstly, can you just give us an update on supply chain, what you're seeing and the level of confidence that GBP 150 million-GBP 200 million cash headwind will reduce in 2027? The second question, you've got an increasingly broad and strong portfolio now in the data center power market. You've just spoken to the growing opportunity in prime power. How important could this market become to Rolls-Royce? Is the long-term plan to evolve a really holistic offering that incorporates SMR?
Oh, wow. Okay. I think, let me start with that one. I think short answer is absolutely. We are all ready. When we actually meet with hyperscalers, today even, SMR and Power Systems team shows up together. Yes, SMR still has some mileage to go in terms of execution. Definitely it will Because when we started, frankly, SMRs are 470 MW. I thought this is actually grid. What happened during the process, still, what we are doing in the U.K. will go to grid, what happened in the process is data centers got bigger and bigger and bigger. Right now, they are building 500 MW data centers. They are now between 200-500. In that kind of setup, yes, you can actually put an SMR, then you not only have continuous power, but it is also net zero, obviously.
It will definitely play that role. In fact, I was thinking AMRs may play that role, but AMR is smaller. They will actually more focused on space Defence and industrial setup, if you have an industrial complex and so on. Yes, answering that. Gas engines is very interesting for us because anything Helen presented, we don't actually benefit from that. I said it less than 10%, but that's non-data center. It has been actually off-grid applications. Now we see enormous demand coming. Enormous. Our good news is we actually have some capacity in our plan. Without investment, we can scale up. We need to invest, obviously, for that. Also, we really very strong service. Almost 50% of our profit comes from services in Power Systems, and this will increase that.
A gas engine, which obviously runs all the time, versus a diesel backup engine, aftermarket profits is exponentially higher. Exponentially. It comes in three years. It's not like 15 years. Three years, you need to, because they run so much. Do you want to pick up supply chain?
Yep. Can do. Sam's on supply chain. We definitely see an improvement in that, and we have put a lot of effort into it. As I said, product availability has improved. We've invested with our suppliers. We've sent hundreds of people in there to strengthen their supply chain. We've opened up additional sources. We've put in new tooling, machinery, second-source supplies. We are seeing the benefit of that come through as a result of our actions. You can see that in some of our stats. Large engine OE deliveries up 30% year-on-year. Turnaround time in our main bases, three weeks. Yeah, quicker. That's a lot compared to this time last year. Where we're still seeing some of the crunch points is particularly in product cost inflation.
The Middle East environment hasn't helped with that, if you think of how much product, particularly some of those rare earth elements and elementals that I spoke to, that transit through the straits. We have got a set of actions, and they're both tactical, to deal with the here and now, and strategic, to sustainably build up resilience. We've got good visibility into it. We've got confidence that as the environment stands at the moment, that charge will reduce in 2027 and be gone by 2028 based on the current environment.
Just to add, to give you further confidence. Thanks, Helen. Supply chain has some generic issues, and then every company has some specific issues. Right? I won't give company names, but if you think about it, you will figure it out. Our issue has been, therefore, we are confident that's going to disappear, 150-100. Our big issue was Trent 1000. Think about parts availability and issue, engines come back every 9- 12 months in that environment. That creates all sorts of issue, including customer disruptions and the implications of that financially. Right? By upgrading those engines, therefore, we are actually confident that That was big part of how we are eliminating AOGs. That's why our particular issue disappears. That's why we are talking with confidence that that's what's going to happen. If you like.
Thank you very much.
Morning to Tufan, Helen. Ross from Morgan Stanley. Three, if I may. One quick follow-up to Sam's question on Powergen. I think you said primary power was currently 10% contributor to sales. Where do you think that could be medium term? Secondly, on the A350 and the potential rate increase that Airbus has flagged, and what CapEx would be required there, and is that included in your outlook? Lastly, on narrow body and the potential partner, does that partner need to be an operational partner that actually brings technical expertise to the table, or can it be simply a financial partner? Thanks.
Okay. I think less than 10%, if I start with gas engines. Less than 10%, yes. Given the visibility of orders right now, here's how you should think about our growth. We said 25%, within that, you think about backup engines still growing, gas engines are growing even more. Both of them are growing, but even more. As a result, we expect by 2030, that number will be 15%-20%. Both of them growing, so therefore, it will more than double by definition. Right? The good news is, really, because OE margin profile very similar, but you have very big aftermarket coming. I said in my presentation, after mid-term, they will come, because it's normally three years. Okay? That's first question.
A350, frankly, first Airbus needs to decide, I don't want to elaborate or comment on what they will do, what they will not do. It's a good question for them, though. We are very closely working with them, and I would like to highlight our great success with A350. Right? XWB-84 is the best engine durability fuel efficiency in the whole market right now. 97 has 99.9%, more than 99.9%, actually, dispatch reliability, and it is the most utilized engine in wide body. Obviously, we will bring that understanding and expertise to that. First they need to decide, A, are they going to do it? B, what kind of thing they will do. Narrow body, I think pure financial, I'm not really interested in.
There needs to be a sort of strategic dimension of the partnership and all the parties we are talking to, and there are multiple parties, I can assure you, has that profile. Jeremy.
Thanks, Tufan. I've got some online questions here, including from Ben Heelan at Bank of America. A couple of his questions have been answered, but one to focus on here is A350-2000.
Could you provide an engine that's a derivative of an existing XWB, and what sort of investment would that require? Is the first one. The second one is a follow-on or an additional question on narrow body, which is, would you be willing to pair up with an airframer for that program in return for giving them a stake in the program?
Okay, thanks. I think -2000, I'm afraid, Ben, I'm going to give the same answer I gave. I think on -2000, first Airbus needs to make the choice, then obviously we are working with them to help make that decision, then we can talk about it. I think on narrow body, as I said, we are talking to multiple partners. At this point, it's not appropriate to talk about this kind of player, that kind of player. I already answered that it's not financial players. I would like to leave it at that. Is there any other in the room? At the back.
It's working?
Yes.
Hi, thanks for taking my question. Colin Moody from RBC here. Just maybe another one or two on the Power Systems and power generation opportunity. You talked about potential to expand more capacity yourself. Clearly, there's a lot of capacity coming online from your two other main competitors as well as a slew of others. How do you think about the risk of overcapacity in the industry? Maybe just another question. Clearly, you gave a view on what a primary power generation opportunity could go to in the midterm. Do you think there's a limited duration to that potentially? When you look at the comments from the larger gas turbine manufacturers, a lot of them have a view that as they get their capacity up, engines will kind of retire again to sort of being backup power solutions. How do you view that risk? Thank you.
It's a great question. Here is what I don't actually see on the first part of your question. I'll come to the second part of your question in a minute. I don't actually see that risk, because here's couple of data points for you. We already said in our presentation that actually order intake increased 50%. That was total Power Systems. Actually, if you look at data centers and Powergen, it is more than 50%. Number one, this GBP 8 billion order book is very unusual in this industry. If you are aerospace analyst, with all due respect, you may not appreciate it saying, "Okay, what is this?" For this industry, it is unbelievable. We are already taking orders for data centers for 2028, and with hyperscalers, actually, we have framework agreements with penalties. They go all the way to 2030. Okay?
I think this data is important, and I know yesterday, today, AI growth, this and that, the whole world is sort of obsessed by that. Every other day, they change their mind, by the way. It's interesting. Today is the dawn day, I guess. I have a perspective on that, frankly. Sometimes we confuse companies' valuation, which I'm not going to comment on. They are all great companies on technology space. Companies' valuation, are they higher valued, lower valued, versus would digital transformation in the world will continue? Okay? I'm not going to comment on the first one. I'm going to comment on the second one. Second one tells me, actually, the following. I just talked about digital thread. We are actually going big time. Thinking about companies like us, right? Digital transformation in the world will continue because it enables effectiveness. It enables efficiency.
There is no doubt. Therefore, would digital infrastructure to support that will continue? It will have to continue because world needs it. That's very different than the X company's value is too much. I'm not going to even comment on it. Sometimes people confuse the two and make conclusions from that. Is it a bubble or? I don't think digital transformation is a bubble. Right? Therefore, people actually investing in data center infrastructure because they are thinking that way. We talk to our customers, hyperscalers, but if you look at NVIDIA product roadmap, their chips are requiring more and more power. Why? AI models are getting more and more complex. Just look at their product roadmap. Therefore, we actually signed the framework agreement. I can assure you, early next week, in investment committee, we are going to sign another big hyperscaler sort of deal.
We will, in the investment committee, authorize, hopefully. That gives you a framework agreement with penalties, it gives you multi-year visibility. We actually go and invest. Right? We optimize our operations a lot more, like two years ago versus now. We are optimizing a lot more because volume allows you to do that. Your gas engines, I think you are right. There is a good visibility for gas engines to 2030, and our investments target that, as opposed to how about 2050, this will happen, and let's have speculative investment, et cetera. It will be very interesting. Frankly, I was actually reflecting on this. It will be very interesting because almost exclusively all of these gas engines will go to U.S. because of the off-grid, grid situation in the U.S. Therefore, U.S. market is actually the market to talk about here.
You are right, at some point, grid may come. It will be interesting. Once you paid for these engines, given how cheap gas is in the U.S., would some companies, rather than grid, will continue with this because maybe operating costs may be lower? I'm not going to speculate on it, but I wouldn't totally rule that out either. Right? You need to think about it that way as well.
Some of these engines can switch to backup power as well.
Yes. That's what she's talking about.
Yeah, exactly. Yep.
Jeremy.
Last one, I think from David Perry.
Hi, David.
Hi. Congrats on the great results. Focusing on the Defence performance, which was really standout at a 21% margin. Obviously, that compares to the midterm guidance of 14%-16%. How should we be thinking about Defence margins going forward for both 2026 and the midterm, and how much of that improvement is sustainable?
David, as usual, great question, with one correction, if I may. Standout, not only Defence. All other two divisions also stand out. Just small correction. I would say, let me characterize that for you because there may be a background conversation, Middle East, this, that. I think what we did, this value stream framework, we first applied the way to run the business in Civil Aerospace. Then we went to other divisions. Now we actually run it that way, and Power Systems were sort of there. As part of that, there was an aftermarket project. As a result of that, we look at aftermarket. I talk about six levers for Civil Aerospace. I didn't talk about it today, but you know what they are. Same six levers, actually, there as well. Different dynamics, same six levers. A big aftermarket profitability improvement was driven by lower shop visit costs.
They are sustainable. Therefore, David, the way to think about it, yes, I think 21%. You know, David, this really well. Six months is six months, right? In that six month, there was this aftermarket versus OE %, which will not be there in full year. Therefore, some of it is aftermarket. I always say our targets are sustainable operating margin targets. Therefore, one quarter. Sometimes people come to me, "This competitor delivered this margin in three months." It is three months. Lots of dynamics drive that. If I don't deliver any OE, lots of aftermarket, I may deliver 40% margin. I think you need to think about it. There is that in Defence first half. There is also this underlying performance improvement in aftermarket coming, as I explained.
Therefore, you should expect not 21%, but relative to where we were, you should expect increase underlying operating margin improvement in this. Also, we said actually combat and transportation aftermarket and the international sales. If there is a background conversation in the first half, how about Middle East impact? Middle East, most of it was underlying, and there was some Middle East profit impact. Okay? That's how you should actually hold it. Going forward, we will have higher operating margins, not 21%, but higher than we used to have because of what I just said. Okay. I think there are no more questions. I think, thanks for your questions. As usual, they are great questions. I think we are making great What am I delighted about these results? Lots of underlying performance improvement came from every division.
That's why I'm delighted because I'm not worrying about this six months. I'm actually worrying about moving the bar and building on it and capture the ground, build on it. In that sense, all three divisions did exactly that and created, therefore, continuous underlying performance improvement, which is actually sustainable. Therefore, we are making great progress in that. As I said, we created, if you think about it, whether it is portfolio mix of high-performing three divisions and how they are actually lined up to major world trends and our underlying performance improvement coming, that diversified portfolio and the agility in the company and frankly, how much we lowered cash break-even of the company, this is a very resilient company. Sometimes resilience come at the expense of growth. We have actually unmatched growth potential, but at the same time, a lot more resilient than our competitors.
If you think five minutes, you will find the answer. I think that mix is a brilliant sweet spot, actually, for Rolls-Royce that we will continue to build on it and deliver. Thanks for listening. Have a great day.