Key Points and Summary – The UK Ministry of Defence has confirmed that the final aircraft of its 75-strong F-35 fleet will be delivered by 2033.
-As the only Tier 1 partner in the program, the UK currently operates 41 carrier-capable F-35Bs, but Prime Minister Keir Starmer recently announced the purchase of 12 nuclear-capable F-35As to restore the RAF’s aerial deterrence role.
-Despite achieving “Full Operational Capability” with the HMS Prince of Wales, the program faces scrutiny over pilot shortages and infrastructure issues that threaten readiness.
US To Deliver Final F-35 Stealth Fighters To The UK By 2033
The United States will deliver the last of the 75 stealth F-35 fighters acquired by the British Armed Forces by the end of 2033, according to the UK Ministry of Defence.
The UK is expanding its fleet to over 75 of the fifth-generation stealth aircraft, including new F-35As for nuclear deterrence, complementing its F-35Bs for carriers, though delivery timelines faced minor delays due to software (TR-3) issues resolved in 2024/2025, with ongoing production by Lockheed Martin supporting global partners.
In a written parliamentary answer dated January 5, 2026, UK Defence Minister Lord Coaker stated that the Ministry of Defence expects delivery of its 75th F-35 fighter jet by the end of 2033.
The response clarifies the long-term delivery schedule without changing the minimum fleet commitment of 74 units. It confirms a phased acquisition approach rather than an accelerated procurement cycle.
The UK Has Been A Key Partner In the F-35 Program
The UK has been a key strategic partner in the development of the F-35 from its very beginning, entering the Joint Strike Fighter (JSF) initiative in 1995 as the only Tier 1 international partner.
This status consisted of both financial contribution and political support, which granted the UK deeper access to the program than any other non-US participant, including influence over design choices relevant to carrier operations and sovereignty requirements.
The UK’s involvement in the program has provided significant industrial workshare (approximately 15 percent by value of every jet), key technologies like the F-35B’s lift system (Rolls-Royce), and a global maintenance hub, while also operating the aircraft for its own advanced carrier strike capabilities.
However, the UK Parliament has slammed the MoD’s cost-cutting approach, which has resulted in numerous issues, including: A critical shortage of pilots, engineers, and flight instructors, which results in the jets flying less often.
The critical infrastructure at RAF Marham and delays in vital software upgrades have resulted in reduced capability and readiness for near-future conflicts.
The UK Currently Operates F-35 Stealth Fighters
The UK has 41 of the carrier version (F-35B) of the fifth-generation stealth fighter. Those numbers are expected to rise soon to 48 as the manufacturer, Lockheed Martin, ramps up production.
The UK’s F-35Bs are versatile, capable of operating from the Queen Elizabeth-class aircraft carriers as well as from RAF airfields.
Last year, Zona Militar reported that the Royal Navy announced that its flagship, HMS Prince of Wales, had achieved Full Operational Capability, together with its F-35B stealth fighters, after completing the first of two exercises scheduled for the Mediterranean Sea under NATO command.
This important milestone for the ship and for the Royal Navy means that the Carrier Strike Group is now authorized to integrate into front-line operations when required, giving the United Kingdom greater projection capability.
“This is a proud moment for Britain. The United Kingdom is strengthening European security and delivering on our plan to prioritize NATO. I deeply appreciate the professionalism and dedication of all those who have worked to reach this important milestone (…)
“We are in a new era of threats that demands a new era of defense. Our strength lies in military power and strong alliances, so it is fitting to commemorate this moment with one of our closest NATO allies, Italy. Their F-35s have been operating from the aircraft carrier to demonstrate the deep collaboration between our armed forces,” said John Healy, the UK’s Secretary of Defence.
RAF To Operate Nuclear Capable F-35A Stealth Fighter
Also occurring last year, British Prime Minister Keir Starmer announced that the United Kingdom will move forward with the purchase of 12 new F-35A stealth fighter aircraft with nuclear capability, which will be operated by the Royal Air Force at the RAF Marham airbase in Norfolk.
Prime Minister Starmer said, “In an era of radical uncertainty we can no longer take peace for granted, which is why my government is investing in our national security, ensuring our Armed Forces have the equipment they need, and communities up and down the country reap the benefits from our defence dividend.
“Supporting 100 businesses across the country and more than 20,000 jobs, these F-35 dual-capable aircraft will herald a new era for our world-leading Royal Air Force and deter hostile threats that threaten the UK and our Allies.
“The UK’s commitment to NATO is unquestionable, as is the Alliance’s contribution to keeping the UK safe and secure, but we must all step up to protect the Euro-Atlantic area for generations to come.”
U.S. Air Force Maj. Kristin “BEO” Wolfe, F-35A Lightning II Demonstration Team commander and pilot, flies during a demonstration rehearsal at Hill Air Force Utah, April 28, 2021. The F-35A Lightning II Demonstration Team is part of the first operational F-35A wing for the Air Force, the 388th Fighter Wing, and flies over the Hill Air Force Base runway to practice and prepare for upcoming air shows around the world. (U.S. Air Force photo by Capt. Kip Sumner)
A U.S. Air Force F-35A Lightning II assigned to the F-35A Lightning II Demonstration Team performs at the Capitol Air Show over Sacramento, California, July 15, 2024. Innovations such as the F135 Smart Stacking Tooling Enhancement developed by the OC-ALC mechanics and engineers have significantly improved the rotor assembly process, increasing precision and enhancing the depot’s ability to produce the engine that powers the F-35 Lightning II. (U.S. Air Force photo by Staff Sgt. Zachary Rufus)
A new F-35A Lightning II fifth-generation fighter aircraft flies over the Alaska Canada Highway en route to its new home at the 354th Fighter Wing, Eielson Air Force Base, Alaska, April 21, 2020. The F-35 represents a new model of international cooperation, ensuring U.S. and Coalition partner security well into the 21st Century. (U.S. Air National Guard photo by Tech. Sgt. Adam Keele)
This is a big step for the UK since it has relied solely on its submarine fleet equipped with Trident II missiles for its nuclear deterrence, lacking any air-deliverable alternatives since 1998.
It was then that the UK decommissioned its WE.177 nuclear bombs. The US withdrew its last nuclear weapons from RAF Lakenheath in 2008. Now the RAF will modernize Lakenheath with US funding for updated nuclear weapons storage facilities.
About the Author: Steve Balestrieri
Steve Balestrieri is a National Security Columnist. He served as a US Army Special Forces NCO and Warrant Officer. In addition to writing on defense, he covers the NFL for PatsFans.com and is a member of the Pro Football Writers of America (PFWA). His work was regularly featured in many military publications
