Tristan Osborne, Labour MP for Chatham and Aylesford, inquired about measures taken by the Ministry of Defence to bolster the UK’s involvement in the international F-35 Lightning II programme, according to a written question and answer.

Responding on 5 February 2025, Minister of State for the Ministry of Defence, Maria Eagle, emphasised that “The F-35 programme is not a workshare programme. It is a competitive international supply chain where F-35 work is won and secured on merit.” She added that “The UK has been successful in securing F-35 work to date and are well placed to secure work in the future.”

Citing data from Lockheed Martin and the Joint Program Office, Eagle noted ta somewhat disputed figure, “approximately 15% of every F-35 aircraft delivered globally is manufactured by UK companies.”

She highlighted a range of F-35 components produced in Britain, including rear fuselages, batteries, ejector seats and actuators, stressing that the UK’s design authority for these parts “secures highly skilled jobs within the UK and provides significant economic benefit.”

The minister confirmed that the domestic contribution involves “over 100 UK-based Tier 1 suppliers and has created over 20,000 jobs in the UK.”

Although the programme does not operate on a formal workshare basis, the government remains confident that British industry will continue to compete successfully for future contracts to support the global F-35 fleet.


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George Allison
George has a degree in Cyber Security from Glasgow Caledonian University and has a keen interest in naval and cyber security matters and has appeared on national radio and television to discuss current events. George is on Twitter at @geoallison
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Stephanie
Stephanie
20 days ago

The UK is a Tier 1 Partner in the programme. Surely that should guarantee some leverage in supply?

I note Australia has all their 72 F-35A’s. Whereas the UK is bimbling with just 35 aircraft.

Another programme where the UK has invested a lot but come worse off than others. It is like a project run by the French!

Supportive Bloke
Supportive Bloke
20 days ago
Reply to  Stephanie

If we had all 72 then something would have had to go to pay for the purchase, pilot testing and running costs. Budgets are just too tight. Going from 2.3 -> 2.5% sounds a lot but is about £4-5Bb/yr So each service gets £1Bn after overhead and NE eat their shares. So what does £1Bn/Yr buy you? That has to include the increased running costs too. OK a lot of running costs are non linear but are tested as linear when dealing with the pitiful number of anything UK now has. Essentially everything is being run below the optimum point… Read more »

Jim
Jim
20 days ago
Reply to  Stephanie

The UK chose to forgo early deliveries at the request of the USMC and to the relief of the MOD budget.

Spyinthesky
Spyinthesky
20 days ago
Reply to  Jim

Aah I was about to say that supply of the B version was restrained and that even the Marines were not getting them as fast as planned. Had we ordered some A versions I suspect we could have had plenty of them… IF we had wanted them. I suspect the current scenario suits the Govt while protecting us from being accused of not fulfilling commitments.

Lonpfrb
Lonpfrb
20 days ago
Reply to  Jim

Also to UK advantage to take TR3 new build rather tthan earlier batches then have to upgrade with operational impacts too.

Spyinthesky
Spyinthesky
20 days ago
Reply to  Stephanie

To be fair their Hornets/Super Hornets were getting to end of life for the most part. We have a core Typhoon force that’s our workhorse with a lot of life left in it yet whatever the argument oaround ordering more.

Chris
Chris
17 days ago
Reply to  Spyinthesky

The superhornet is not getting to the end of its life. The last buy hasn’t even started production yet.

JC
JC
20 days ago
Reply to  Stephanie

Yes and of the 35 acquired one has crashed and 4 more are test aircraft based in the US. That leaves a measly 30. The actually numbers available for immediate operational use would be somewhat lower due to scheduled and unscheduled maintenance, repairs and upgrades. Originally Britain spoke of acquiring 150 aircraft. This became 138 and now they are talking just over half those numbers which would in insufficient to fully equip Britain’s 2 aircraft carriers yet alone deployments elsewhere. Discussions now appears to be about putting drones on the carriers together with smaller numbers of F35B’s. Cost savings and… Read more »

Hugo
Hugo
19 days ago
Reply to  JC

There’s only 1 test aircraft now, the 3 older ones are being rigged for combat

Jim
Jim
20 days ago

DM hates anyone else commenting on here. He has just got many posters deleted. FUCK OFF DM. lol.

Daniele Mandelli
Daniele Mandelli
17 days ago
Reply to  Jim

Wow….you strung that together all by yourself….

Robert Blay
Robert Blay
20 days ago

And most of Australia’s F35s will require major upgrading. The benefits to the UK go well beyond the number of aircraft on order in service.

Daniele Mandelli
Daniele Mandelli
20 days ago
Reply to  Robert Blay

Yes, we paid good money back in the day for Tier 1 status. I don’t believe we have such a facility here though, apart from the Sealand site for the avionic side.

DH
DH
20 days ago

Hmm, hit that chaff dispenser DM. Bogey at 6! Lol 😁. 😉🕳️Btth.

lordtemplar
lordtemplar
20 days ago

“range of F-35 components produced in Britain, including rear fuselages, batteries, ejector seats and actuators” i find it hard to believe that this work represents 15% of the workshare/value on all F35 variants. This may have been true in the early days of the JSF program when it was in development and there were plans for a UK F136 engine, which ended up being cancelled. The real money is in the engines, avionics and weapon systems. Furthermore the biggest cash cow is lifetime upgrades & maintenance (easily 2 to 3 times the flyaway costs), not in rear fusleage pieces etc…… Read more »

Frank62
Frank62
20 days ago
Reply to  lordtemplar

Possibly other items UK made but secret.

Spyinthesky
Spyinthesky
20 days ago
Reply to  lordtemplar

I suspect there is some muddying with parts made by uk companies in the US or even elsewhere.

Andrew Robinson
Andrew Robinson
20 days ago
Reply to  lordtemplar

There was a really interesting article a couple years ago from Francis Tusa (who knows his onions about the uk aerospace industry). He did some detailed analysis, and reckoned the UK input into the F35 was more in the 8 to 9 % range…

Spyinthesky
Spyinthesky
20 days ago

I reckon that is probably more like it though has probably varied during the programme. I was checking the lift system for example as RR has overall responsibility for it but which seems a complicated blend of interests. Though not RR in concept design (Lockheed originally) they took over responsibility for it early on and overall development occurred in Bristol then further through Allison and now shares parts between its uk and American sites with final build in the US so what share do you give that I wonder, obviously changed over time too.

Jim
Jim
20 days ago

The F136 involved Rolls Royce but not the UK.

Spyinthesky
Spyinthesky
20 days ago
Reply to  Jim

Don’t think that is quite true RR entered the programme before Allison was absorbed and designed the fan for the engine GE and Allison the rest.

Ian Mc.
Ian Mc.
20 days ago

As regards UK manufacturing involvement, it is my understanding that the laser target designator system for the F-35 is a Leonardo product, designed and built in Edinburgh, but I stand ready to be corrected.

Alabama boy
Alabama boy
19 days ago

When the Tier 1 status was negotiated I cannot believe Lockheed wasn’t influenced on our intention buy 138 F35Bs which at the time was the largest overseas purchase of F35Bs. Since then the UK has slowed its deliveries – I would like to think it was MOD being clever realising that not surprisingly the software updates were taking much longer than was planned and therefore in the long term its better for the UK to get the later more capable aircraft. The cynic in me says it was all a fortunate accident, the real reason was the MOD was trying… Read more »

Dave c
Dave c
19 days ago

Raf wasting money for a hundred years

Chris
Chris
17 days ago

10% of a 1tn+ program is a lot of coin. Probably the single largest nominal UK defense production by value in history, even if it’s not the entire jet.