Question to the Ministry of Defence:

To ask the Secretary of State for Defence, how many noise and vibration injuries were sustained by personnel using Ajax vehicles between 23 July 2025 and Exercise Titan Storm.

The number of personnel with a recorded code for the relevant symptom has been provided. It should be noted that personnel who had a recorded symptom for noise or vibration may have had this on their health record prior to their first Ajax use.

For any service person, use of Ajax will be mixed with other hazardous exposures in Defence, such as load-carriage, fitness tests and noise and vibration exposures from other sources such as small arms fire on ranges or other armoured vehicles. It is also possible that any symptoms may be non-Ajax related. Therefore, although a noise or vibration symptom may have been recorded on the health record since the individual first operated Ajax, it does not mean that the symptom was caused as a direct result of operating on the Ajax platform and could be entirely unrelated.

Of those recorded as using Ajax since the start of the Armoured Cavalry programme between 23 July 2025 and 13 November 2025:

• 25 personnel had a noise symptom recorded on their electronic medical record since they first used Ajax.
• 59 personnel had a vibration symptom recorded on their electronic medical record since they first used Ajax.