Defense & Military
US Air Force to Replace Oldest F-35s Instead of Upgrading Them
The US Air Force opts to retire early F-35A jets, focusing on new purchases over expensive Block 4 upgrades amid delays and cost overruns.
A Pragmatic Pivot: Why the U.S. Air Force Is Replacing Its Oldest F-35s
The F-35 Lightning II stands as the centerpiece of modern air combat for the United States and its allies. As a fifth-generation, multirole fighter, its development and deployment represent one of the most ambitious and expensive defense programs in history. The U.S. Air Force’s long-term vision includes acquiring a massive fleet of 1,763 F-35A variants, making it the backbone of its tactical airpower for decades to come. This long-term plan, however, is now facing a significant strategic adjustment.
In a notable shift, the Air Forces has decided to phase out its earliest F-35A models rather than subject them to a complex and costly modernization process. This move, detailed in a congressionally mandated report, involves divesting the older, non-combat-capable jets instead of upgrading them to the advanced Block 4 standard. This decision is not a retreat from the F-35 program itself but rather a calculated course correction, driven by the immense technical and financial challenges associated with the Block 4 upgrade. It signals a pragmatic choice to prioritize the acquisition of new, factory-fresh aircraft over the difficult task of retrofitting the oldest airframes.
The Rationale: Cost-Effectiveness Over Complex Retrofits
The core of the Air Force’s decision lies in a simple, yet critical, calculation: it is more efficient to buy new F-35s than to upgrade the old ones. The Military-Aircraft targeted for replacement are from the early low-rate initial production (LRIP) phases. These jets were built before the design was finalized and lack the full combat capabilities of their more modern counterparts. Bringing them up to the latest Block 4 configuration would require extensive, invasive, and expensive modifications.
This strategy is also an attempt to move away from what has been termed “acquisition malpractice”, the practice of developing, testing, and producing a weapons system concurrently. This approach has historically led to costly retrofits as design flaws are discovered after aircraft have already been built. By focusing on procuring new F-35s built with the latest technology from the ground up, the Air Force aims to field a more reliable and capable fleet faster. The service is looking to significantly ramp up its procurement rate, with a goal of acquiring as many as 80 F-35As annually.
Lockheed Martin, the F-35’s Manufacturers, has indicated a potential production capacity of up to 100 F-35As per year by fiscal year 2030. This industrial capacity supports the Air Force’s strategy, making the replacement plan a viable path toward achieving its total fleet objective of 1,763 aircraft without sinking more resources into the most problematic early models.
The Troubled Block 4 Upgrade
The decision to replace the older jets is inextricably linked to the severe difficulties plaguing the Block 4 modernization program. Block 4 is a critical but massive undertaking, designed to equip the F-35 with the capabilities needed to counter advanced future threats. The upgrade includes over 75 major improvements, such as increased missile capacity, next-generation electronic warfare systems, and enhanced target recognition.
However, the program has fallen far behind schedule and ballooned in cost. A Government Accountability Office (GAO) report painted a stark picture, revealing that the Block 4 upgrade is five years behind schedule and a staggering $6 billion over budget. Full integration of all planned capabilities is not anticipated until 2031. These persistent delays and cost overruns have forced the F-35 program to consider reducing the overall scope of the modernization effort.
A key technical hurdle has been the development of Technology Refresh 3 (TR-3), the new hardware and software core intended to provide the necessary computing power for Block 4’s advanced features. TR-3 has faced its own significant developmental challenges, creating a bottleneck for the entire modernization pipeline. In 2024, these issues contributed to Delivery delays for all new F-35s, with an average delay of 238 days per aircraft.
The attempt to make the F-35 a jack-of-all-trades has been cited as a fundamental challenge, with one analyst noting it was a flaw to try and make the aircraft do too much. This complexity is now manifesting in the difficulties of the Block 4 upgrade.
Broader Implications for the Future Fighter Fleet
This strategic pivot on the F-35 is part of a larger evolution in the Air Force’s approach to its fighter fleet. The service is moving toward a mixed-fleet model, balancing the high-end capabilities of the F-35 with other, more affordable aircraft. This is evidenced by the increased procurement of the Boeing F-15EX Eagle II, a modernized fourth-generation fighter intended to complement the F-35 and handle missions that do not require stealth.
The high operating and maintenance costs of the F-35 have long been a point of concern. Former Air Force officials have described the jet as a “Ferrari” that shouldn’t be used for daily, low-end fights. By investing in a mix of aircraft, the Air Force can optimize its fleet for a wider range of missions and manage sustainment costs more effectively.
Furthermore, this decision allows the Air Force to focus resources on the future. The service is already looking ahead to its sixth-generation fighter, part of the Next-Generation Air Dominance (NGAD) program, and the integration of Collaborative Combat Aircraft (CCAs), or “drone wingmen.” Divesting the oldest F-35s frees up funding and logistical capacity that can be redirected toward these next-generation priorities, ensuring the U.S. maintains its edge in air superiority for decades to come.
Conclusion: A Pragmatic Path Forward
The U.S. Air Force’s decision to replace its earliest F-35A models is a clear-eyed response to the realities of a complex and troubled modernization program. Faced with the immense cost and technical risk of upgrading its oldest jets, the service has chosen a more pragmatic path: accelerate the acquisition of new, fully capable aircraft. This move aims to avoid repeating past mistakes and ensures that the warfighter receives the most advanced technology available without delay.
This strategic shift underscores a broader evolution in military procurement, prioritizing efficiency and future-readiness. By balancing the F-35 fleet with complementary aircraft like the F-15EX and investing in next-generation systems, the Air Force is building a more resilient and adaptable fighter force. The F-35 remains the cornerstone of that force, but this decision ensures the foundation is built with the strongest, most modern assets available.
FAQ
Question: Why is the Air Force getting rid of its older F-35s?
Answer: The Air Force has determined that it is more cost-effective and efficient to replace the oldest, non-combat-capable F-35As with new aircraft rather than undertaking the expensive and complex upgrades required to bring them to the modern Block 4 standard.
Question: What is the F-35 Block 4 upgrade?
Answer: Block 4 is a comprehensive modernization program for the F-35, encompassing over 75 major improvements in areas like electronic warfare, processing power, and weapons capacity. However, the program is currently five years behind schedule and $6 billion over budget.
Question: How many F-35s does the Air Force plan to own?
Answer: The U.S. Air Force’s official program of record is to acquire a total of 1,763 F-35A aircraft.
Sources
Photo Credit: US Air Force
Defense & Military
USAF Launches EPAWSS Speedline to Accelerate F-15E Modernization
The USAF establishes an EPAWSS Speedline at Warner Robins to rapidly upgrade F-15E Strike Eagles with advanced electronic warfare systems starting June 2026.
This article is based on an official press release from the Air Force Life Cycle Management Center.
Air Force Launches EPAWSS Speedline to Accelerate F-15E Modernization
On May 26, 2026, the Air Force Life Cycle Management Center (AFLCMC) announced the establishment of a dedicated “Speedline” facility at the Warner Robins Air Logistics Complex (WR-ALC) in Georgia. This new initiative is designed to rapidly accelerate the installation of the Eagle Passive Active Warning Survivability System (EPAWSS) on the U.S. Air Force’s F-15E Strike Eagle fleet.
According to the official press release, the Speedline facility is slated to receive its first F-15E aircraft for installation in June 2026. By decoupling these critical electronic warfare upgrades from standard Programmed Depot Maintenance (PDM) schedules, the Air Force aims to field advanced defensive capabilities much faster than previously possible.
We note that this shift in maintenance strategy allows the military to upgrade jets up to five to seven years ahead of their routine maintenance cycles. This collaborative effort between the AFLCMC’s F-15 System Program Office and the WR-ALC is expected to significantly boost fleet readiness against modern electromagnetic threats.
Breaking the Maintenance Bottleneck
Operational Independence
Historically, major system upgrades for fighter aircraft have been tied to their routine depot maintenance schedules, which can create bottlenecks for fielding urgent technology. The AFLCMC’s new Speedline operates entirely independently of the standard PDM line.
This operational independence provides the F-15 System Program Office and WR-ALC the flexibility to install the EPAWSS on aircraft that are not due for routine maintenance for another five to seven years. By treating the electronic warfare upgrade as a standalone priority, the Air Force can modernize its fleet at a pace dictated by tactical necessity rather than logistical routine.
Understanding the EPAWSS Upgrade
Replacing Cold War-Era Technology
The Eagle Passive Active Warning Survivability System is a next-generation, all-digital electronic warfare suite. Based on the provided research data, it is designed to replace the legacy Tactical Electronic Warfare System (TEWS), which relies on Cold War-era analog equipment.
Developed by prime contractor BAE Systems, with Boeing serving as the prime contractor for integration, EPAWSS provides fully integrated radar warning, geolocation, situational awareness, and self-protection solutions. The system allows the aircraft to detect, identify, and defeat surface and airborne threats in highly contested, dense signal environments.
Financial and Production Milestones
The U.S. Air Force officially cleared EPAWSS for full-rate production in early 2025. Concurrently, the Air Force awarded a $615.8 million contract to Boeing to cover the installation of these systems. Shortly after this award, the first fully equipped F-15E was delivered to the 48th Fighter Wing at RAF Lakenheath in the United Kingdom, marking a major milestone in the modernization of the 4th-generation fleet.
Strategic Importance and Lethality
Expanding the F-15E’s Capabilities
The integration of EPAWSS is not merely a defensive measure; it is a comprehensive upgrade to the aircraft’s survivability and lethality. In the official AFLCMC release, military leadership emphasized the strategic necessity of the system.
“The F-15E Strike Eagle remains a cornerstone of our tactical airpower and deep strike capabilities. The integration of advanced electronic warfare suites, such as the Eagle Passive Active Warning Survivability System, ensures the F-15E will not just survive, but actively disrupt and dismantle adversary kill chains in the most highly contested, electromagnetically dense environments.”
, Lt. Col. Matthew Heil, F-15 Program Office, EPAWSS Materiel Leader
AirPro News analysis
We observe that the creation of the EPAWSS Speedline reflects a broader Department of Defense trend toward agile logistics and sustainment. By separating critical combat upgrades from time-consuming depot maintenance, the military is demonstrating a commitment to fielding new technologies to the warfighter at a much faster pace.
Furthermore, as the U.S. Air Force continues to develop and field 5th-generation fighters like the F-35 and F-22, alongside future 6th-generation platforms, maintaining the survivability of 4th-generation “workhorse” aircraft is a strategic priority. EPAWSS ensures that older airframes like the F-15E can safely and effectively operate alongside stealth fighters in modern, highly contested combat scenarios, bridging the gap between legacy platforms and future air dominance initiatives.
Frequently Asked Questions
What is the EPAWSS Speedline?
The EPAWSS Speedline is a dedicated installation facility at the Warner Robins Air Logistics Complex designed to rapidly equip F-15E Strike Eagles with the new Eagle Passive Active Warning Survivability System, independent of standard maintenance schedules.
When will the first aircraft be upgraded at the Speedline?
According to the Air Force Life Cycle Management Center, the facility is slated to receive its first F-15E aircraft for installation in June 2026.
Who are the primary contractors for EPAWSS?
BAE Systems is the prime contractor that developed the EPAWSS, while Boeing serves as the prime contractor for the system’s integration and installation on the F-15E.
Sources
Photo Credit: U.S. Air Force photo by Airman 1st Class Codie Trimble
Defense & Military
Final A-10 Engine Build Marks End of Davis-Monthan Maintenance Era
Davis-Monthan AFB completes last A-10 engine build as USAF extends aircraft service life through 2030, ending a 50-year maintenance mission.
This article is based on an official press release from Air Combat Command.
On May 21, 2026, Airmen at Davis-Monthan Air Force Base in Arizona officially completed their final A-10 Thunderbolt II engine build. According to an official release from Air Combat Command, this milestone marks the end of a decades-long maintenance mission for the 355th Component Maintenance Squadron (CMS) and serves as a symbolic closing chapter for the base’s 50-year legacy with the iconic close-air-support aircraft.
While the U.S. Air-Forces recently announced a partial extension of the A-10’s operational life through 2030, the formal training and heavy maintenance pipelines, including the dedicated Davis-Monthan engine shop, are officially shutting down. As the military transitions to future platforms, the completion of this final General Electric TF34 turbofan engine represents the end of an era for the maintainers who kept the “Warthog” flying.
We at AirPro News have reviewed the official military releases and supplementary research to provide a comprehensive look at what this final build means for the U.S. Air Force, the maintainers on the ground, and the future of the A-10 fleet.
A Historic Final Build for the 355th CMS
A standard A-10 engine build is a rigorous, multi-stage operation that typically takes 30 days to complete. The process involves meticulous inspection, repair, rebuilding, and testing of the General Electric TF34 turbofan engines that power the A-10C Thunderbolt II. According to military reports, a single crew of five maintainers usually handles the entire process for a given engine.
Hands-On Participation
For this historic final build, the 355th CMS broke from tradition. Every member of the shop participated, ensuring that all personnel had the opportunity to put their hands on the final engine throughout its diagnostic runs and final inspection. The final engine test was successfully conducted in the test cell on April 30, 2026, verifying its performance and flight readiness.
The process officially concluded on May 21, 2026, when Tech. Sgt. Logan Lamb, a 355th Maintenance Group quality assurance inspector, stamped the final inspection form. Wing leadership and the 355th CMS gathered to celebrate the completion, reflecting on the gravity of their work.
“Some, if not all these engines have saved lives on the ground through close air support missions, and some have carried pilots home while the other engine was damaged. All members of the shop put eyes and hands on this engine throughout the build, testing, diagnostic runs and final inspection. Typically, only one crew of five would work on any one engine, but this engine has been touched by everyone.”
The Warthog’s Legacy and Future Operations
Davis-Monthan AFB has served as the primary hub for A-10 operations and training for nearly 50 years. However, the base began divesting its A-10 fleet in February 2024, sending the first aircraft to the 309th Aerospace Maintenance and Regeneration Group, commonly known as the “Boneyard.” On April 3, 2026, the 357th Fighter Squadron at Davis-Monthan graduated its final class of A-10 pilots, permanently closing the formal training pipeline for the aircraft.
Service Extension Through 2030
Despite the closures at Davis-Monthan, the A-10 will continue to fly. On April 20, 2026, Air Force Secretary Troy E. Meink announced that the Air Force will extend the service life of the remaining A-10 fleet through 2030, reversing a previous plan to retire the aircraft by 2029. According to defense reports, this decision was heavily influenced by the A-10’s recent combat performance in Operation Epic Fury, a U.S. campaign against Iran in late March and April 2026, where the aircraft successfully struck naval vessels and provided critical close air support.
AirPro News analysis
The decision to extend the A-10’s service life through 2030 while simultaneously closing its primary heavy maintenance and training facilities presents a unique logistical scenario. The Air Force is utilizing what it calls a “fleet management strategy.” Because the Davis-Monthan engine shop and the pilot “schoolhouse” are now closed, operational squadrons at bases like Moody AFB and Whiteman AFB will be operating on borrowed time. They will have to rely entirely on existing experienced personnel, stockpiled parts, and the durability of engines like the one just completed by the 355th CMS to sustain operations until the final retirement date. This strategy underscores the military’s confidence in the robust engineering of the TF34 engines and the meticulous groundwork laid by aerospace Propulsion Airmen over the past decades.
The Unsung Heroes of Aerospace Propulsion
The longevity and survivability of the A-10 Thunderbolt II are directly tied to the expertise of aerospace propulsion Airmen. These maintainers are responsible for ensuring the aircraft remains lethal and capable of returning pilots home safely, even after taking heavy fire.
Their daily responsibilities include conducting borescope inspections to identify internal engine issues early and prevent catastrophic failures. They also manage test cell operations, running the engines in a controlled environment while monitoring critical readings from a control cab to verify performance before the engine is ever attached to an airframe.
“I think the legacy of the A-10 is going to be remembered for generations. The A-10 will be missed here in Arizona.”
Frequently Asked Questions (FAQ)
What engine does the A-10 Thunderbolt II use?
The A-10 is powered by twin General Electric TF34 turbofan engines. These engines are renowned for their durability and ability to sustain damage while still bringing pilots home safely.
Why is the A-10’s service life being extended to 2030?
Air Force Secretary Troy E. Meink announced the extension on April 20, 2026, following the aircraft’s highly successful combat performance during Operation Epic Fury in early 2026. The extension reverses previous plans to retire the fleet by 2029.
Is Davis-Monthan AFB still training A-10 pilots?
No. The 357th Fighter Squadron at Davis-Monthan graduated its final class of A-10 pilots on April 3, 2026, officially closing the formal training pipeline for the aircraft.
Sources: Air Combat Command
Photo Credit: U.S. Air Force photo by Senior Airman Christopher Ornelas Jr.
Defense & Military
Airbus Explores Helicopter Manufacturing in Canada for Global Export
Airbus SE is evaluating manufacturing helicopters in Canada to support federal defense contracts amid Canada’s $81B defense investment and new industrial strategy.
This article summarizes reporting by Bloomberg and Laura Dhillon Kane. This article summarizes publicly available elements and public remarks.
According to reporting by Bloomberg, Airbus SE is evaluating the potential to manufacture helicopters in Canada for the global export market, provided the European aerospace giant secures upcoming federal procurement contracts. This strategic proposition arrives as Canada embarks on an unprecedented defense spending expansion aimed at modernizing its military and stimulating domestic manufacturing jobs.
We note that Airbus is leveraging a unique political and economic window. By pitching a “local for global” manufacturing approach, the company hopes to decentralize its production while satisfying the Canadian government’s increasingly stringent demands for domestic economic benefits in exchange for lucrative defense contracts.
Canada’s Historic Defense Spending Surge
Following years of underfunding, the Canadian government has recently injected an $81.1 billion multi-year investment into national defense, according to comprehensive industry research. Under the administration of Prime Minister Mark Carney, Canada officially reached the 2% NATO spending benchmark in March 2026 and has committed to escalating defense expenditures to 5% of GDP by 2035.
The 2026 Defence Industrial Strategy
A major catalyst for Airbus’s proposal is the Canadian government’s first-ever Defence Industrial Strategy (DIS), launched in February 2026. Research reports indicate that the DIS introduced a strict “Build-Partner-Buy” framework designed to maximize domestic economic activity. The strategy ambitiously aims to direct 70% of defense contracts to Canadian firms, create 125,000 jobs, and boost defense exports by 50%.
To win contracts under this new framework, foreign vendors are required to provide sustainable domestic economic activity and transfer intellectual property. Furthermore, Canada is actively seeking to diversify its defense procurement to reduce its historical reliance on U.S. suppliers, pivoting toward European partnerships and joining the EU’s €150 billion Security Action for Europe (SAFE) fund.
Airbus’s “Local for Global” Pitch
Airbus is no stranger to the Canadian aerospace sector, having operated in the country for over 40 years. According to industry data, the company currently employs over 5,300 people in Canada. Its helicopter division, based in Fort Erie, Ontario, is already a recognized center of excellence for composite manufacturing, shipping approximately 34,000 parts globally each year to support Airbus’s worldwide supply chain.
Targeting Key Government Contracts
Airbus is actively pursuing three major helicopter procurement projects in Canada: fleet replacements for the Canadian Armed Forces, the Canadian Coast Guard, and the Royal Canadian Mounted Police (RCMP). To bolster its position, Transport Canada officially certified the Airbus H175 helicopter in February 2026, a super-medium aircraft tailored for search and rescue and defense missions in harsh environments. Additionally, Airbus is currently delivering 19 H135 helicopters to the Royal Canadian Air Force for the Future Aircrew Training (FAcT) program.
Airbus executives have made it clear that winning these new contracts would justify expanding their Canadian manufacturing base to assemble complete helicopters for the global market.
“Clearly, if Airbus helicopters are selected for any of the big upcoming campaigns and there is an industrial project which is tied to this contract, it’s an opportunity to export what would be manufactured here to the worldwide market.”
“We see that the H175 is very well positioned for several of those ambitions… We really see that as an aircraft for Canada, but… it would also be a helicopter from Canada.”
Balancing Economic Demands with Aerospace Realities
While Airbus is willing to expand its manufacturing footprint, company leadership has cautioned against overly transactional government demands. Michalon noted that while Airbus can offer research, development, and local procurement, there are practical limits to quid-pro-quo arrangements in aerospace manufacturing.
“If you ask us, ‘Can you bring a car plant in exchange for us selecting [an Airbus helicopter]?’ the answer is ‘Probably not, no.'”
AirPro News analysis
We observe that Canada’s deliberate pivot toward European defense partnerships represents a significant geopolitical shift. Historically, over 90% of Canada’s military helicopters and 100% of its fighter aircraft have been sourced from the United States. While diversifying procurement builds sovereign capacity and integrates Canada into European supply chains, defense experts suggest it could introduce interoperability friction with U.S. forces, particularly concerning joint North American Aerospace Defense Command (NORAD) operations.
Furthermore, establishing a Canadian export hub would provide Airbus with much-needed supply chain redundancy. By decentralizing production from its primary plants in France and Germany, Airbus can better insulate itself from European supply chain bottlenecks. Canada’s 2025 entry into the NATO Next Generation Rotorcraft Capability (NGRC) initiative also positions the country as a long-term collaborator alongside European nations to manage the rising development costs of future military rotorcraft.
Frequently Asked Questions (FAQ)
Why is Airbus considering building helicopters in Canada?
According to Bloomberg reporting, Airbus is exploring Canadian manufacturing for global export as a strategic incentive to win upcoming federal procurement contracts for the Canadian Armed Forces, Coast Guard, and RCMP.
What is Canada’s current defense spending target?
Under Prime Prime Minister Mark Carney, Canada officially hit the 2% NATO spending benchmark in March 2026 and has committed to reaching 5% of GDP by 2035, backed by an $81.1 billion multi-year investment.
What is the Defence Industrial Strategy (DIS)?
Launched in February 2026, the DIS is a Canadian government framework aiming to direct 70% of defense contracts to domestic firms, create 125,000 jobs, and boost defense exports by 50% by requiring foreign vendors to invest locally.
Sources:
Bloomberg
Provided Industry Research Report
Photo Credit: Airbus
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