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Defence & Security22 Oct 2026 · about 6 min

Pentagon, Lockheed agree to decade-long F-35 framework deal for hundreds of jets

The brief

The framework is a proposed long-term arrangement between the Pentagon and Lockheed Martin for F-35 production and sustainment. It would organize purchases, initial spares, maintenance, and modification kits across roughly a decade. The goal is greater planning certainty for the program and its industrial base. The proposal covers at least 850 US aircraft in 10 production lots. Lockheed would keep production at 156 aircraft annually. It would also include 10 years of sustainment and modification kits. Lockheed says suppliers could invest in hiring, software, capacity, efficiency, and supply-chain resilience. The framework is not yet a completed contract. Lockheed and the F-35 Joint Program Office still must finalize terms, prices, and schedules. Lawmakers must provide authority and appropriations. The Pentagon has not disclosed the taxpayers’ total cost or expected savings, although a decade-long agreement could be worth tens of billions of dollars.

01

What is the decade-long F-35 framework agreement between the Pentagon and Lockheed Martin?

The framework is a proposed long-term arrangement between the Pentagon and Lockheed Martin for F-35 production and sustainment. It would organize purchases, initial spares, maintenance, and modification kits across roughly a decade. The goal is greater planning certainty for the program and its industrial base.

The proposal covers at least 850 US aircraft in 10 production lots. Lockheed would keep production at 156 aircraft annually. It would also include 10 years of sustainment and modification kits. Lockheed says suppliers could invest in hiring, software, capacity, efficiency, and supply-chain resilience.

The framework is not yet a completed contract. Lockheed and the F-35 Joint Program Office still must finalize terms, prices, and schedules. Lawmakers must provide authority and appropriations. The Pentagon has not disclosed the taxpayers’ total cost or expected savings, although a decade-long agreement could be worth tens of billions of dollars.

02

How many F-35 aircraft and years of maintenance and upgrades could the agreement cover?

The proposed framework combines aircraft purchases with long-term support. It could cover at least 850 US F-35s across 10 production lots. That makes it much broader than a single aircraft order. It also aims to give Lockheed and suppliers a clearer basis for planning investments.

The support portion would run for 10 years. It includes sustainment and modification kits, while the aircraft purchases include initial spares. Lockheed says the arrangement could let suppliers invest in hiring, software, capacity, and better testing. Parts would also be pooled between production and sustainment for suppliers and Lockheed.

The numbers describe a framework, not a completed purchase contract. The next production lot, Lot 20, is not expected to be finalized until next year. Final terms, pricing, and schedules still depend on congressional authority, appropriations, and negotiations between Lockheed and the Joint Program Office.

03

Why does the agreement keep F-35 production at 156 aircraft per year instead of increasing the manufacturing rate?

The framework does not increase the F-35 manufacturing rate. Lockheed’s release says production would remain steady at 156 aircraft annually. That makes this agreement different from other Pentagon frameworks designed to raise production of weapons such as munitions.

The stated focus is stability. A decade-long structure could give Lockheed and suppliers more certainty to invest in capacity, hiring, software, efficiency, and supply-chain resilience. Lockheed also says pooling parts between production and sustainment could improve purchasing power. These measures target the industrial base and delivery performance without changing the annual aircraft figure.

The article does not give a single explicit reason for choosing 156 aircraft instead of a higher rate. It does show that production-rate growth is not part of this framework. The agreement still requires congressional authority, appropriations, and finalized terms. Lot 20 is not expected to be finalized until next year.

04

How could a long-term deal lower costs, improve supply reliability, and affect the readiness of F-35 aircraft?

A long-term deal could lower costs by combining demand across production and sustainment. Larger, steadier orders can give suppliers more confidence to invest and help the program seek economies of scale. The Pentagon also links multi-year agreements with potential cost savings, though this proposal’s expected savings remain undisclosed.

Lockheed says F-35 parts would be pooled between production and aftermarket support. That could produce better pricing from suppliers. The company also describes a fixed-price escalation model, under which strong performance could bring higher profits. Suppliers could invest in hiring and software, reducing late or low-quality deliveries to the Fort Worth production line.

Those changes could improve aircraft readiness by making parts more available and reliable. Modernization investments could improve testing when new capabilities are added. Still, readiness gains and savings are potential outcomes, not guarantees. The contract is unfinished, and lawmakers may require proof of at least 5 percent savings before authorizing multi-year procurement.

05

Why must Congress authorize and fund the agreement, and what savings and spare-parts conditions might lawmakers require?

Congress controls the authority and funding needed for a decade-long procurement and sustainment commitment. Lockheed and the F-35 Joint Program Office can negotiate terms, but they cannot finalize the framework without lawmakers granting the required authority and accompanying appropriations. The agreement could be worth tens of billions of dollars.

The House version of the fiscal 2027 defense authorization bill would require the defense secretary to certify that each aircraft has the full complement of initial spare parts and alternate mission equipment. It would also require demonstrated savings of at least 5 percent. These conditions would apply before multi-year F-35 procurement is authorized.

The Senate bill includes language permitting multi-year F-35 procurement, while the House includes similar language with extra guardrails. Neither version explicitly authorizes multi-year sustainment. That omission could leave the maintenance portion unresolved. The Pentagon and Lockheed also have not disclosed the initiative’s total taxpayer cost or expected savings.

06

Why has agreeing on long-term F-35 maintenance been difficult in the past?

Long-term F-35 maintenance has been difficult because Congress places conditions on such agreements. The program previously explored a five-year performance-based logistics, or PBL, contract for sustainment. That proposal did not become a deal.

The article states that officials could not satisfy a congressional requirement, but its provided text ends at “congressional re” and does not complete the phrase. Therefore, the exact requirement cannot be identified from the source. The failed PBL effort shows that production and sustainment agreements can face different approval challenges.

That history matters for the new framework. The current proposal includes 10 years of sustainment and modification kits, but neither the Senate nor House bill explicitly authorizes a multi-year sustainment agreement. Even if lawmakers approve multi-year aircraft procurement, maintenance authority may remain a separate obstacle. Final terms and funding are still unresolved.

07

What is defense sustainment, and why can maintenance and upgrades cost more over a weapon's lifetime than its initial purchase?

Defense sustainment means keeping a weapon system usable throughout its service life. It includes maintenance, spare parts, repairs, technical support, software, and upgrades. In this proposal, sustainment is paired with modification kits and a 10-year support period. The purpose is to preserve capability after aircraft leave the production line.

The F-35 example shows how this works. Parts would be pooled between production and aftermarket support. Suppliers could invest in hiring, software, and testing. The agreement would also address modernization, including new capabilities and improved test capacity. These are continuing costs, not just one-time purchases of aircraft.

Lifetime support can exceed the initial purchase price because it lasts for many years and covers repeated labor, parts, repairs, training, software, and upgrades. The article does not quantify that comparison for the F-35. It does show that sustainment is financially significant: the proposed agreement could be worth tens of billions of dollars.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.

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