Key Points and Summary – The UK’s Ajax recon vehicle has reached initial operating capability with the Queen’s Royal Hussars and Household Cavalry—years late and over budget.
-At 38 tons, Ajax replaces the 12-ton Scimitar with modern sensors, protection, and a 40mm CTA cannon.

AJAX British Army Photo. Image Credit: Creative Commons.
-The family spans six variants (Ajax, Ares, Athena, Argus, Atlas, Apollo) under a 589-vehicle, $7.2B deal.
-Trials were marred by severe noise/vibration and crew injuries; costs have climbed to about $8.3B.
-Despite ministerial assurances, early fleets won’t field airburst ammunition or electronic countermeasures, leaving a loud, heavy platform exposed to small drones—prompting stopgaps like “cope cages” while fixes are assessed.
AJAX Fighting Vehicle Has Arrived
The UK Ministry of Defence (MoD) has declared the initial operating capability (IOC) of Ajax, a tracked reconnaissance vehicle for the army’s Armored Brigade Combat Teams (BCT) and Artillery Fire Support Teams.
It was first assigned to the Queen’s Royal Hussars and the Household Cavalry Regiment, based in Bulford, Wiltshire.
Ajax is more than three times the size (38 tons) of the FV-107 Scimitar (12 tons) that it is replacing, resembling more of a small tank than the legacy vehicle from the 1970s.
Ajax is equipped with a suite of modern sensors and computer systems, along with updated armor and protection designed to safeguard the crew.
It also has upgraded weapons, including a 40 mm cannon that can fire different types of ammunition, such as high-explosive or armor-piercing rounds.
However, the Ajax is arriving years late, over budget, reportedly injures its crews, and there are questions about whether it remains relevant in the age of drone warfare.
Meet The Ajax Family Of Systems:
The Ajax is a family of tracked, all-terrain, digitally enabled, armoured fighting vehicles, with a range of weapons and sensors. There are six different variants produced by General Dynamics Land Systems-UK (GDLS-UK), which holds a substantial contract valued at approximately US $7.2 billion. This contract entails the design, production, and ongoing support of a total of 589 Ajax vehicles.
The 245 Ajax is the British Army’s deployable all-weather intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) capability.
The Ajax will serve as the Reconnaissance vehicle in the Armoured Brigade Combat Teams (BCT) and Deep Recce Strike BCT, as well as the Artillery Fire Support Teams.
The 245 Ajax is the only turret version and is armed with a CTA International 40mm cannon.
Ares will be an armored personnel carrier delivering specialist troops such as AT Javelin elements or sniper teams. Athena is a command and control vehicle, and Argus is its engineering counterpart, which enables engineers to record data without needing to leave the vehicle. Atlas is a recovery vehicle, and Apollo is a repair unit with a crane that can lift out the engines. There will be a total of 589 vehicles, 245 of which will be the Ajax version.
Issues With The Ajax:
The Ajax is based on an existing design, ASCOD 2, which the MoD chose for development in 2010 by General Dynamics. The first vehicles were due to be delivered in 2017, and IOC planned for 2020, meaning it is at least five years late.
In a press briefing, UK junior Defence Minister Luke Pollard acknowledged repeated missed deadlines in 2017, 2020, and 2021. In 2020, trials of prototypes were halted due to excessive noise and vibration, which were reportedly so severe that army personnel suffered hearing damage.
A report on the hearing loss and excessive vibration caused by the Ajax, from the British government, stated, “GDUK has designed and built what MoD maintains is thus far a vehicle which is not fit for purpose and does not meet the contracted specification.”
The noise issue is still a problem. Sky News reported that these issues are still ongoing.
The Ajax is Well Over Budget:
As of 2024, over $5.2 billion of the program’s $7.2 billion budgeted contract value had been spent, with only 44 of the vehicles delivered.
Reports suggest the program’s overall cost is approximately $8.3 billion.
However, Luke Pollard, Minister for Defence Readiness and Industry, said the project had “overcome” its difficulties.
Speaking in Wales last week, he said: “Ajax has overcome significant challenges, but importantly, we can say it has left its troubles behind.
“Ajax has proved itself in the field to be the most advanced medium-weight armoured fighting vehicle on the planet, and we have more than a full squadron ready to go, ready to fight, ready to win, with more in the pipeline.
“Our Ajax fleet has a key role as we move our nation to war-fighting readiness… We now live in a new era of threat, we live in a more dangerous world, and to respond to that, we need to renew our armed forces, retire old equipment, and invest in new technologies.”
Drone Vulnerabilities Present An Issue With Ajax:
Because Ajax was initially designed long before the war in Ukraine started, there are concerns that the vehicle will be especially vulnerable to drone attacks.
Particularly due to its size, noise, and lack of current anti-drone electronic countermeasures. While the vehicle features advanced digital technology, its heavy weight and loudness make it a potential target. The Ministry of Defence has confirmed that the fleet will not initially be equipped with airburst ammunition or electronic countermeasures to defeat aerial threats.
Reports indicate that the fleet will not be equipped with electronic countermeasures to jam or defeat drones at the outset, and airburst ammunition for the 40mm cannon, which is more effective against aerial threats, will not be procured.
According to CTA International, the Kinetic Energy Air Burst (KE-AB) munition delivers a payload of tungsten pellets with a directional terminal effect, considered to be “particularly effective against all aerial threats”, as well as ground applications such as infantry or blinding vehicle optics or antenna.
The UK is considering integrating “cope cages” to protect Ajax.
About the Author: Steve Balestreri
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.
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