We already have 12.
And they are bricked on a software issue for a year, even the US Navy rejected these planes. We are buying junk.
https://www.navylookout.com/us-watchdog-warns-of-growing-risks-to-f-35-programme/
"Central to Block 4 is the Technology Refresh 3 (TR-3) hardware and software suite, a $1.9 billion upgrade that boosts computing power and memory. TR-3 has proved far harder to deliver than expected. GAO notes continuing problems with sensors, software stability and supply chains. By 2024, every F-35 delivered was late, on average 238 days behind schedule, largely due to TR-3.
In a highly unusual step, the Pentagon began accepting non-combat-capable aircraft with TR-3 hardware installed but immature software. These jets are being used for training while awaiting retrofit. By mid-2025, 174 such aircraft had been accepted. For the UK, this precedent is concerning: should future deliveries to the RAF and RN fall into this category, the Lightning Force could receive expensive jets that are not immediately usable for operations."