To ask the Secretary of State for Defence what estimate he has made of the cost per track/road mile, excluding crew costs, of operating the (a) Challenger 2 Tank, (b) Mastiff and (c) Bulldog in Iraq. (137619)

Operational track mile cost data are not held centrally and could be provided only at disproportionate cost.

The full capitation cost for the Challenger 2 Tank (all variants) based on peacetime usage is calculated as £496.15 per kilometre.

Costs for the Mastiff and Bulldog are not currently available as these vehicles have only recently entered service.