The real battle is durability, availability, industrialization and lifecycle control
By O’Day Aviation Consulting
Aircraft orders traditionally dominate the headlines coming out of the Farnborough International Airshow.
But one of the most consequential stories from Farnborough 2026 was happening deeper in the aircraft value chain.
Propulsion is becoming a competition not simply over who can design the most efficient engine, but who can manufacture it reliably, rapidly introduce upgrades to teething issues, keep it on-wing longer, repair it faster, secure the parts required to support it, and industrialize the next generation quickly enough to meet demand.
The announcements during—and immediately following—Farnborough reinforced a trend we have been discussing with clients:
The next competitive advantage in propulsion will be created as much in engine shops, factories and supply chains as it is in the engineering organization.
Here are six developments O’Day Aviation Consulting believes deserve particular attention.
1. Farnborough Was a Massive Vote of Confidence in Commercial Propulsion Demand
The scale of engine commitments at Farnborough was striking.
GE Aerospace and CFM International announced commitments covering approximately 1,800 engines during the show.
The headline transaction was IndiGo’s memorandum of understanding for more than 1,000 LEAP-1A engines to power 510 A320neo-family aircraft—the largest single LEAP engine agreement in CFM history.
But it wasn’t the only important transaction.
BOC Aviation placed its largest-ever engine transaction with CFM, covering up to 300 LEAP-1A and LEAP-1B engines.
Meanwhile, Pratt & Whitney reported more than 800 GTF orders and commitments during 2026 through Farnborough, bringing its GTF backlog above 8,000 engines.
British Airways selected the GTF to power 33 firm and 30 option A320neo-family aircraft, supported by a 12-year EngineWise maintenance agreement.
BOC Aviation also announced an order for up to 220 GTF engines.
The takeaway is bigger than the order totals.
Despite the durability, supply-chain and MRO challenges experienced across the new-generation narrowbody engine market, airlines and lessors continue making enormous long-term commitments to both LEAP and GTF.
That tells us something important:
Demand is not the industry’s problem. Execution is.
The competitive question increasingly becomes which propulsion ecosystem can convert that backlog into reliable aircraft availability.
2. IndiGo May Have Made One of Farnborough’s Most Strategically Important MRO Decisions
The significance of IndiGo’s LEAP announcement goes well beyond 1,000 engines.
The agreement also calls for CFM to support the establishment of IndiGo’s own engine MRO capability and includes long-term material services and spare-parts support.
That is a major strategic signal.
One of the world’s fastest-growing airlines is effectively linking its propulsion purchasing decision with greater control over the maintenance infrastructure required to support that fleet.
Why? Because engine MRO capacity has become a strategic constraint on airline growth.
An airline can have aircraft, pilots, gates and passengers—but if engines are waiting months for shop capacity or critical hardware, those assets do not generate revenue.
The traditional model was largely:
Airline → Engine OEM/MRO network → Maintenance capacity
The emerging model for some large operators increasingly looks like:
Airline + OEM + dedicated maintenance capability + secured material supply
That changes the balance of power within the aftermarket.
For airlines, it can provide greater visibility into turnaround time, parts availability and maintenance cost.
For OEMs, it expands the installed support network.
For independent MRO providers, it raises the competitive bar.
And for suppliers, it creates new opportunities to support geographically distributed engine-maintenance ecosystems.
We expect more airlines and large fleet operators to evaluate whether critical propulsion sustainment capabilities should remain entirely outsourced.
3. The LEAP-1B Durability Kit May Be More Important Than Another Large Engine Order
One of Farnborough’s most technically significant propulsion announcements received far less attention than the order headlines.
CFM announced FAA and EASA certification of its LEAP-1B high-pressure turbine durability kit.
CFM says the upgraded hardware is expected to double time on wing in hot and harsh operating environments, including regions such as India and the Middle East. Full production transition is expected in early 2027.
CFM also announced initial engine-level certification of its reverse bleed system for the LEAP-1B engine. The cooling technology stops carbon build-up after shutdown. It is designed to reduce on-wing fuel nozzle fixes, lower airline costs, and matches older CFM56 maintenance levels. Full production rolls out in early 2027.
This is precisely where the commercial engine competition is moving.
For years, new-generation engine campaigns emphasized:
- Fuel burn
- Bypass ratio
- Emissions
- Noise
- Specific fuel consumption
Those metrics remain critical.
But operators are increasingly evaluating another metric: How much revenue-producing time can I reliably obtain between engine interventions?
That puts HPT blade design, cooling architecture, coatings, materials, fuel-nozzle durability and repairability directly into the aircraft economics equation.
The physics are unforgiving.
Higher-performance engines generally operate with higher temperatures, pressures and thermal loading. The technologies that make those efficiencies possible must therefore be matched by hot-section durability capable of sustaining them in real airline environments.
This is equally important for mature fleets.
HPT blades and other hot-section components remain among the most important contributors to significant engine events, unscheduled removals and AOG exposure across many established engine families.
For O’Day Aviation Consulting, this is one of the most important propulsion trends to watch:
The next phase of engine competition will increasingly be fought over time-on-wing, not simply fuel burn.
4. MRO Capacity Is Becoming Part of the Engine Sales Proposition
The engine OEMs understand the problem.
CFM continues expanding its open MRO ecosystem, with GE Aerospace and Safran Aircraft Engines each committing major investment to increase LEAP maintenance capability and capacity.
That investment is necessary because the installed LEAP fleet is moving steadily toward a much larger wave of shop visits.
At the same time, GTF operators are progressing through durability upgrades and the impact of the powder-metal inspection program while Pratt & Whitney prepares the GTF Advantage architecture for service.
The industry therefore faces an unusual situation:
Production demand and aftermarket demand are increasing simultaneously. Both compete for portions of the same industrial base:
- Castings
- Forgings
- Superalloys
- HPT hardware
- Coatings
- Precision machining
- Inspection capacity
- Skilled technicians
- Engineering resources
The result is that a factory improvement alone does not solve the problem.
The propulsion system must increasingly be managed as a complete lifecycle industrial ecosystem.
That includes new-engine production, spare engines, replacement hardware, repair capacity, material flow and MRO throughput.
5. RISE Shows That Next-Generation Propulsion Is Moving From Concepts Toward Hardware
Farnborough also provided important evidence that future propulsion technologies are maturing.
CFM reported that approximately 500 test campaigns have been conducted across technologies associated with its RISE program, including Open Fan, compact-core and hybrid-electric systems.
Key Open Fan and compact-core design reviews have been completed, and technologies continue moving toward ground and flight demonstrations later this decade.
GE Aerospace also announced an important hybrid-electric milestone around Farnborough: a modified aircraft successfully demonstrated hybrid-electric propulsion at an altitude above 30,000 feet.
These are meaningful developments.
But the industry’s challenge is not simply demonstrating new technology.
It is turning advanced technology into a certifiable, producible and supportable propulsion system.
That means the next engine competition will have to solve several problems simultaneously:
Efficiency + durability + weight + certification + manufacturability + supply-chain scalability + maintainability
The companies that solve only the thermodynamics will not necessarily win.
6. Defense Propulsion Is Becoming a Laboratory for a Different Industrial Model
Perhaps the biggest change from our original Farnborough assessment is the speed at which the defense propulsion market is evolving.
Collaborative Combat Aircraft, autonomous platforms, advanced weapons and affordable-mass concepts are creating propulsion requirements fundamentally different from traditional fighter programs.
Pratt & Whitney used Farnborough to publicly unveil its Valox family of small scalable engines targeting CCA and advanced weapons applications.
The family is planned to span approximately 500 to 1,800 pounds of thrust, with development initially centered on the Valox 700 and a higher-thrust Valox 1500.
- Valox 700: Tailored for smaller effector munitions and cruise missiles, with design validations underway.
- Valox 1500: Built for small autonomous collaborative platforms and uncrewed fighters, backed by a $10 million U.S. Air Force Research Laboratory contract.
Pratt & Whitney also discussed progress toward potential flight testing of rotating detonation engine technology for advanced weapons applications.
Meanwhile, BAE Systems unveiled its Brontanax collaborative combat aircraft concept as the UK accelerates development of autonomous combat-air capability.
These programs point toward a very different propulsion philosophy.
Traditional fighter engines were optimized around extreme performance (nearly at any cost), sophisticated sustainment systems and service lives measured in decades.
The emerging CCA and affordable-mass market places greater emphasis on:
- Acquisition cost
- Rapid development
- Producibility
- Additive manufacturing
- Modular architectures
- Supply-chain scalability
- Rapid technology insertion
- Mission-appropriate service life
That does not mean reliability becomes unimportant. It means reliability must be optimized against mission life, acquisition cost and production volume rather than automatically maximizing engine life regardless of cost.
The emerging question becomes:
How much engine does the mission actually require—and how quickly can industry manufacture thousands of them?
The Bigger Farnborough Message: Industrialization Has Become a Propulsion Technology
The industry traditionally thinks of propulsion technology in terms of compressors, combustors, turbines, materials and controls. We believe that definition is becoming incomplete.
Manufacturing capability itself is becoming a propulsion technology.
An organization capable of designing an advanced turbine is valuable.
An organization capable of producing that turbine repeatedly, at high yield, from a resilient supplier network, while maintaining configuration control and rapidly scaling output is substantially more valuable.
That puts greater emphasis on:
- Manufacturing readiness
- Design for Manufacturing and Assembly
- Model-Based Systems Engineering
- Automated inspection
- Digital manufacturing
- Statistical process control
- Supplier industrialization
- Production-rate readiness
- Repair development
- Lifecycle sustainment planning
This is particularly important for emerging propulsion companies.
A successful demonstrator proves that an engine can work.
A successful production system proves that the business can work.
What O’Day Aviation Consulting Is Watching After Farnborough
Farnborough 2026 leaves us watching five questions particularly closely.
Can LEAP durability improvements translate into materially longer time-on-wing across demanding operating environments?
How quickly can Pratt & Whitney translate GTF improvements into increased fleet availability and normalized MRO demand?
Will airline-owned or airline-aligned engine MRO capacity become a broader industry trend?
Can RISE, Open Fan and hybrid-electric technologies transition from successful demonstrations into economically producible propulsion architectures?
And perhaps most importantly:
Can the defense propulsion industrial base scale rapidly enough to support the quantities envisioned for CCA, autonomous aircraft and affordable-mass weapons?
The answers will influence billions of dollars in engine orders, MRO investment and supplier opportunity over the next decade.
Where O’Day Aviation Consulting Fits
These developments sit directly at the intersection of the work we do with aerospace organizations.
O’Day Aviation Consulting supports OEMs, propulsion developers, suppliers, MRO organizations and investors across the propulsion lifecycle—from early technology and market decisions through industrialization and aftermarket strategy.
Our team can support organizations with:
- Propulsion market and competitive assessments
- Engine and technology selection
- Technical and commercial due diligence
- Manufacturing-readiness and industrialization assessments
- MRO network and capacity strategy
- Time-on-wing and lifecycle-cost analysis
- Hot-section and critical-component strategy
- Supply-chain risk and supplier assessments
- Make/buy and vertical-integration decisions
- Defense and CCA propulsion market positioning
- Investment and acquisition diligence
For investors and operators, particularly, understanding a propulsion company requires looking beyond the order book.
The questions we believe matter include:
Can the technology perform?
Can it be manufactured?
Can the supply chain scale?
Can it be maintained economically?
And does the aftermarket create—or destroy—lifecycle value?
Those are very different questions from simply asking how much thrust an engine produces.
Final Perspective
Farnborough 2026 demonstrated extraordinary demand for aerospace propulsion. But demand alone will not determine the winners.
The next decade will reward companies capable of connecting:
Technology → Durability → Industrialization → Supply Chain → MRO → Availability
That entire chain ultimately determines whether an engine produces thrust—or waits in a shop for a part.
At O’Day Aviation Consulting, we believe that is where some of the greatest opportunities in aerospace will be created over the next decade.
The future leaders in propulsion won’t simply design better engines. They will build, support and sustain them better than their competitors.
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