HC Deb 08 March 1996 vol 273 c371W
Mr. Home Robertson

To ask the Secretary of State for Defence if he will list the decommissioned nuclear-powered vessels in the ownership of his Department, giving the location of each and the cost of any work undertaken on each vessel since decommissioning; and what are his plans for the disposal of these vessels. [19510]

Mr. Arbuthnot

The location of each nuclear-powered submarine that has left service is as follows, with the approximate costs, where available, of undertaking the defuelling, de-equipping and lay-up preparation—DDLP. In addition to DDLP costs, the average annual maintenance cost of storing a decommissioned nuclear-powered submarine afloat is some £50,000. A docking of each submarine is also carried out every 10 years at an approximate cost of £3 million per submarine. So far, only Dreadnought has undergone a 10-yearly docking. The policy for final disposal is still under consideration.

Submarine Location DDLP cost £ million
HMS Dreadnought Rosyth 1
HMS Warspite Devonport 11.3
HMS Churchill Rosyth 11.2
HMS Conqueror Devonport 10.6
HMS Swiftsure Rosyth 11.5
HMS Courageous Devonport 10.8
HMS Revenge Rosyth 18.7
HMS Valiant Devonport 2
HMS Resolution Rosyth 2
HMS Renown Rosyth 2
1 It is not possible to provide costs of the decommissioning of HMS Dreadnought, which was the first nuclear submarine to be withdrawn from service in 1982; the information, insofar as it may be available, could be provided only at disproportionate cost.
2 HMS Valiant, HMS Resolution and HMS Renown have not yet completed their DDLP.