LONDON — June 09, 2026 : The UK Ministry of Defence (MoD) has announced a two-phase plan to restart trials of the British Army’s Ajax armoured reconnaissance vehicle, aiming to address remaining technical issues and move the long-delayed programme closer to full operational service.
The plan was outlined by Minister for Defence Readiness and Industry Luke Pollard in a written parliamentary response to Conservative MP Ben Obese-Jecty. The approach follows safety reviews conducted after problems emerged during military exercises in late 2025.
Two-Phase Trial Strategy
Under Phase One, the MoD will resume Ajax trials using a limited number of vehicles operating under closely monitored conditions and enhanced maintenance procedures.
Phase Two will introduce hardware upgrades expected to be delivered within months. The improvements will focus on air filtration systems, crew-compartment heating and electrical power generation, areas identified during Exercise Titan Storm, a major British Army exercise held in late 2025.
According to the MoD, these upgrades are intended to improve crew endurance, operating conditions and the vehicle’s ability to support advanced sensors and communications equipment.
Safety Concerns Led to Pause
The new plan follows setbacks that occurred shortly after the Ajax programme achieved Initial Operating Capability (IOC) on 6 November 2025, eight years later than originally planned.
During Exercise Titan Storm, more than 30 soldiers reported illness and symptoms linked to excessive noise and vibration while operating the vehicles. The incidents prompted the MoD to suspend Ajax training and operational activities pending investigations by the Army Safety Investigation Team (ASIT) and an independent review panel.
The investigations found no single cause for the reported illnesses. Instead, they concluded that a combination of technical, environmental and human factors contributed to the issues, including factors such as track tension and loose engine bolts.
While 23 vehicles involved in the exercise remain quarantined, the MoD has approved the controlled restart of wider fleet trials.
Programme Background
The Ajax programme was awarded to General Dynamics UK in 2014 and is valued at approximately £6.2 billion. It is intended to deliver 589 tracked armoured vehicles across six variants for the British Army.
The 42-tonne vehicle was designed to replace aging reconnaissance platforms, particularly the Scimitar, while providing improved protection, mobility, surveillance capabilities and digital connectivity.
However, the programme has faced years of delays and scrutiny due to persistent noise and vibration issues. Earlier trials were suspended in the early 2020s after crews reported hearing problems and physical injuries, leading to reviews by the National Audit Office and parliamentary committees.
Looking Ahead
The MoD has not disclosed how many vehicles will participate in the renewed trials or provided an updated programme cost. General Dynamics UK has also not publicly commented on the latest trial conditions.
Minister Pollard said Parliament will continue to receive updates as testing progresses. The data collected during the two-phase trial programme will help determine whether Ajax can achieve Full Operating Capability, currently projected between 2028 and 2029.
The programme remains a key element of the British Army’s modernization plans and is expected to play a central role in future reconnaissance and battlefield intelligence operations.
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