Astute Class Submarines
Astute Class Submarines The Capability The military requirement is for up to eight Astute Class Submersible Ship Nuclear to replace the existing Swiftsure and Trafalgar Classes of nuclear powered attack submarine. Astute Class submarines are required to perform a range of military tasks; these unique requirements are combined within the Astute design to provide global reach, endurance, covertness, sustained high speed and the ability to conduct unsupported operations in hostile environments. |
| ||||
Overview of Cost, Time and Performance | |||||
| Approved | Forecast/Actual | Variation | IY Variation | |
Cost of Assessment Phase | £33m | £29m | -£4m |
| |
Cost of Demonstration & Manufacture Phase Boats 1-3 | £2,233m | £3,480m | +£1,247m | +£179m | |
Cost of Demonstration & Manufacture Phase Boat 4 | £1,279 m | £1,404m | +£125m | +£71m | |
Cost of Demonstration & Manufacture Phase Boat 5 | £623m | £586m | -£37m | £0m | |
Cost of Demonstration & Manufacture Phase Boat 6 | £255m | £253m | -£2m | -£1m | |
Cost of Support Phase - Initial Support Solution | £315m | £272m | -£43m | £0m | |
Cost of Support Phase - Astute Class Training Service Boats 1-3 | £151m | £648m | +£497m | +£60m | |
Cost of support Phase - Astute Class Training Service Boat 4 | £260m | £318m | +£58m | +£51m | |
Duration of Assessment Phase |
| 69 months |
|
| |
In-Service Date Boats 1-3 | June 2005 | April 2010 | +58 months | -3 months | |
In-Service Date Boat 4 | August 2015 | January 2018 | +29 months | +13 months | |
Support Contract Go-Live - Initial Astute Support Solution | May 2007 | May 2007 | 0 months | 0 months | |
Support Contract Go-Live - Astute Class Training Service Boats 1-3 | January 2004 | March 2008 | +50 months | 0 months | |
Support Contract Go-Live - Astute Class Training Service Boat 4 | December 2013 | May 2015 | +17 months | +35 months | |
Support Contract End - Initial Astute Support Solution | December 2012 | December 2012 | 0 months | 0 months | |
Support Contract End - Astute Class Training Service Boats 1-3 | September 2026 | September 2037 | +132 months | 0 months | |
Support Contract End - Astute Class Training Service Boat 4 | September 2039 | September 2039 | 0 months | 0 months | |
In-year Cost and Time Variation Detail | |
| |
Boat 1, First of Class, successfully completed first dive and initial series of dived trials during February and March 2010, and successfully completed full power trials and deep dive on 30 April 2010. Boat 1 was commissioned into the Royal Navy on 27 August 2010. On 22 October 2010, Boat 1 was involved in a grounding and collision incident whilst on sea trials. The submarine was repaired on the Faslane Ship Lift and left the facility on 24 November 2010. Boat 1 reached Contract Acceptance Stage 1 Platform Demonstration on 29 November 2010, (from which point it is managed as an In- Service Submarine under MOD rather than contractor direction) before returning to the sea in December 2010. Boat 2 reactor core load was completed in November 2010 with the submarine | named on 16 December 2010 and launched on 6 January 2011. It continues systems commissioning and prepares for Power Range Testing planned for late 2011, and sailing on sea trials is anticipated for Spring 2012. During 2007 to 2010 Boats 3 to 7 have been delayed due to Boat 1 holding on to scarce resource for longer to deal with the technical issues, and also due to the MOD slowing the programme down to realise early year savings. In October 2010 the Strategic Defence and Security Review endorsed a revised build plan for the Astute class programme extending timeframes by an average of 14 months per boat. This is to sustain industry leading up to the Successor Deterrent Programme. |
Risk Assessment against Defence Lines of Development
|
|
|
|
|
|
|
|
