Further progress reported: https://www.overtdefense.com/2022/12/06/uks-trouble-ajax-afv-enters-next-trials-stage/

“Analysis of the data and crew feedback from the user validation trials has concluded. The trials successfully met their objectives to establish the effectiveness of the modifications proposed by General Dynamics to address the noise and vibration concerns on Ajax. The trials ensured vehicle crews remained safely within noise and vibration levels, allowing progression to the Reliability Growth Trials that we intend to commence in January 2023.”

Despite this step forward the program is severely delayed with the UK National Audit Office sayingback in March that AJAX is a year behind the program’s revised schedule. In June the Public Accounts Committee chairwoman Dame Meg Hillier said: “Enough is enough – the MoD must fix or fail this programme, before more risk to our national security and more billions of taxpayers’ money wasted.”

Back in October, the UK government announced that while User Validation Trials had paused earlier in the year, they had restarted on 10th October. January will see Reliability Growth Trials begin, the Tests are made up of a combination of qualification and verification activities including tests known as Battlefield Missions which replicate operational scenarios.