The Cost Of Trident

April 2010

“The estimated maintenance costs of Vanguard class submarines in 2009-10 and for each of the next five years … are provided in the following table”:

£ million          
2009-10 2010-11 2011-12 2012-13 2013-14 2014-15
118 139 131 128 165 136

Quentin Davies, Under-Secretary of State for Defence 25.01

“The total spend on the replacement submarine … system since the beginning of April 2007 to the end of December 2009 is some £380 million”. Bob Ainsworth, 2.02

“It is not possible to provide full costs for the maintenance, operation and refitting of the Vanguard class submarines over the whole of the last 10 years as some of the information is not held in the format requested or held centrally, and could be provided only at disproportionate cost. The following table therefore shows the costs that are available in each of the last 10 years”. [The table given below gives the total costs, in millions, which were available only for the last three years; that printed in Hansard is much more detailed.]

2006-07 2007-08 2008-09
51.1 52.3 56.0

Mr. Bob Ainsworth, Secretary of State for Defence, 8.03