US Air Force Proposes 45% Cut to F-35A Purchases in 2026 Budget

Air Force F-35 Procurement Slashed in Pentagon’s FY2026 Budget Proposal

The U.S. Air Force’s procurement of the F-35A Lightning II is set for a significant reduction in fiscal year 2026, according to a draft budget plan from the Pentagon. The proposed cut, reducing the buy from 44 aircraft in 2025 to 24 in 2026, marks a notable shift in the Air Force’s fighter acquisition strategy. This move has sparked concern among defense analysts, lawmakers, and industry stakeholders, as it could impact national security, industrial base stability, and long-term modernization goals.

The F-35 program, developed by Lockheed Martin, is a cornerstone of U.S. airpower modernization. Designed to replace aging fleets of F-15s and F-16s, the stealth multirole fighter provides advanced capabilities in air superiority, ground attack, and intelligence gathering. However, the proposed reduction, driven by budgetary pressures, delays in the Technology Refresh 3 (TR-3) upgrades, and shifting priorities, raises questions about the future trajectory of the program and the readiness of the Air Force’s tactical fighter fleet.

Budget Realignment and Strategic Trade-Offs

Understanding the Numbers

According to documents reported by Bloomberg News, the Air Force plans to purchase 24 F-35As in FY2026 at a cost of $3.5 billion, with an additional $531 million for advance procurement of materials. This is a sharp decline from the 44 aircraft approved for purchase in 2025. The reduction is attributed to constrained budgets, delays in TR-3 upgrades (enhancing weapons, electronic warfare, and target recognition), and the need to fund other priorities.

The unit cost of an F-35A is approximately $82.5 million in recent contracts. Reduced orders disrupt economies of scale, potentially increasing per-unit costs in future years due to fixed production expenses.

Balancing Present Needs with Future Capabilities

The Air Force has emphasized the need to modernize its fighter fleet to counter emerging threats from near-peer adversaries like China and Russia. The aging inventory of F-15s and F-16s, many nearing the end of their operational lives, underscores this urgency. Air Force leaders, as noted by the Mitchell Institute for Aerospace Studies, state that acquiring at least 72 new fighters annually is essential to maintain operational readiness and reduce the average age of the fleet.

However, the service’s strategy includes investments in next-generation platforms, such as the Next Generation Air Dominance (NGAD) program, which aims to provide air superiority through crewed and uncrewed systems, sensor fusion, and artificial intelligence. The F-35 cut is partly a “billpayer” for NGAD and other programs like the B-21 bomber, according to industry sources. Balancing these future investments with current fleet requirements remains challenging, and analysts warn that cutting F-35 procurement could create capability gaps.

“There’s no way the Air Force or the nation can afford to bring down the fighter buy rate,” said Doug Birkey, Executive Director of the Mitchell Institute for Aerospace Studies. “We need 72 fighters per year just to tread water.”

Congressional Response and Alternative Proposals

The House Appropriations Subcommittee on Defense has advanced a spending bill that would fund 42 F-35As for the Air Force in FY2026, rejecting the Pentagon’s proposed cut. This reflects bipartisan concerns about maintaining fighter readiness and supporting the defense industrial base. Lawmakers have expressed frustration with the administration’s delayed FY2026 budget rollout, which complicates oversight and planning.

Given the F-35 program’s strategic importance and its role in allied interoperability, Congress is likely to push for funding closer to historical norms. President Donald Trump has previously praised the F-35’s capabilities, adding pressure to align the budget with congressional expectations.

Industrial Base and Global Implications

Impact on the Supply Chain

The F-35 program supports a vast industrial ecosystem across the United States and allied nations. A reduction in orders can create instability, affecting jobs, production timelines, and cost control. Lockheed Martin’s stock dropped approximately 6% following news of the proposed cut, though it later partially recovered, as reported by Business Insider.

Doug Birkey noted that inconsistent procurement targets cause “whiplash” within the supply chain, making it difficult for manufacturers to plan long-term investments and retain skilled labor. This unpredictability undermines efforts to maintain a robust defense industrial base, a priority for both the Department of Defense and Congress. Stable production is critical for surging output in response to future conflicts or geopolitical crises.

International Considerations

The F-35 is a multinational program with participation from allies like the United Kingdom, Italy, Australia, and Japan. U.S. procurement decisions directly affect these partners, who rely on program stability for their own acquisition planning and industrial participation. Reductions in U.S. orders could lead to delays or cost increases for allied nations, potentially straining defense relationships and complicating joint operations. The F-35’s interoperability is a key asset in coalition warfare, and disruptions could impact NATO and other alliances, as noted by industry sources.

Globally, air forces are investing in fifth-generation capabilities, and the F-35 remains a benchmark for stealth, sensor fusion, and networked warfare. Ensuring its continued affordability and availability is a shared strategic interest among allies.

Conclusion

The proposed cut to F-35A procurement in FY2026 represents a pivotal moment in U.S. defense planning. Driven by budgetary constraints, TR-3 delays, and investments in next-generation programs, the reduction poses risks to fleet readiness, industrial stability, and international defense cooperation. Congressional efforts to restore funding highlight the program’s importance. Balancing current operational needs with future capabilities will require careful coordination between the Pentagon, Congress, and industry stakeholders.

As the defense landscape evolves, the F-35 remains a critical component of U.S. and allied airpower. Decisions made in the coming months will shape the future of the fighter fleet and military modernization in an increasingly contested global environment.

FAQ

• Why is the Air Force cutting its F-35A purchases?
  The reduction is due to budgetary pressures, delays in TR-3 upgrades, and the need to fund next-generation programs like NGAD.
• How many F-35As will the Air Force buy in FY2026?
  Under the Pentagon’s draft budget, the Air Force plans to buy 24 F-35As, down from 44 in FY2025.
• What are the implications for the defense industrial base?
  A cut in orders could disrupt the supply chain, increase per-unit costs, and hinder future production scalability.

Sources: Reuters, Reuters, Defense News, Defense News, Air & Space Forces Magazine