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Upholder Class Submarines

Volume 479: debated on Thursday 17 July 2008

To ask the Secretary of State for Defence what the (a) unit cost and (b) date of commissioning of each Upholder Class submarine was. (218232)

The upholder class of four submarines was commissioned in the early 1990s and the exact dates are shown in the following table. This class was sold to the Canadian Navy in 1998.

Due to the length of time that has elapsed since their commissioning, the unit cost is no longer held centrally and could be provided only at disproportionate cost.

Upholder class

Commissioning dates

HMS Upholder

9 June 1990

HMS Ursula

8 May 1992

HMS Unicorn

25 June 1993

HMS Unseen

7 June 1991