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Dreadnought Class SSBN

Contains threads on Royal Navy equipment of the past, present and future.
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SKB
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Re: Dreadnought Class SSBN

Postby SKB » 17 Oct 2019, 11:45


Image
Image
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cky7
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Re: Dreadnought Class SSBN

Postby cky7 » 17 Oct 2019, 21:03

I notice the model in the Navy lookout picture has 16 launch tubes. Wish that was the case.....

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SKB
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Re: Dreadnought Class SSBN

Postby SKB » 11 Dec 2019, 23:10


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Should've used Christmas wrapping paper... :mrgreen:

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Old RN
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Re: Dreadnought Class SSBN

Postby Old RN » 12 Dec 2019, 09:30

SKB wrote:https://twitter.com/BAES_Maritime/status/1204809406245941253
Image

Should've used Christmas wrapping paper... :mrgreen:


The Reactor Pressure Vessel (two loop?)

NickC
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Re: Dreadnought Class SSBN

Postby NickC » 10 Jan 2020, 15:58

NAO 8th January report on the incompetence of the MOD project management of the Dreadnought nuclear infrastructure resulting in overspend of £1.35 billion over budget and delays of between 1.7 to 6.3 years. NAO suggesting MoD maybe correcting their ways, but why did they not from start of project?

A. MENSA: a new nuclear warhead assembly and disassembly facility, valued at £1.8 billion, at the Atomic Weapons Establishment (AWE)-operated site in Burghfield (Reading), 146% over budget
B. Core production capability (CPC) facilities: upgraded facilities, costing at least £474 million, at the Rolls Royce-operated site in Raynesway (Derby) to produce the latest nuclear reactor core designs, 45% over budget.
C. Primary build facility: new facilities at the BAE Systems-operated dockyard in Barrow-in-Furness (Cumbria), costing £240 million to upgrade aging facilities and support improved submarine construction techniques, 116% over budget.

It seems MoD have never seem to learnt from their past failures, #1 golden rule is that the design must be 100% complete before you start build, not 95% and all kit available off the shelf, so NO new unproven tech. NAO report "inappropriate" contracts with external contractors and beginning building work on facilities before the designs were "sufficiently mature" has added £647 million to costs" (eg it started building the new CPC facilities without a clear specification of the core design and a full understanding of how the facility would be used. The initial facility subsequently turned out to be too small, contributing to the £146 million total project cost increase), also highlighted a lack of technical skills within the MOD. The way that the MoD set up the contracts also means that it, and not its contractors, must foot the bill for these cost increases as it did not share out the financial risks.

No wonder Osbourne earmarked an additional £10bn contingency fund in addition to the £31 Billion for the capital costs of Successor/Dreadnought.
https://www.nao.org.uk/wp-content/uploa ... -sites.pdf

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ArmChairCivvy
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Re: Dreadnought Class SSBN

Postby ArmChairCivvy » 10 Jan 2020, 18:35

NickC wrote:No wonder Osbourne earmarked an additional £10bn contingency fund in addition to the £31 Billion for the capital costs of Successor/Dreadnought.


He was planning to have the Delivery Agency under the Treasury (where it now ain't)... but in that way one can make sure that "failure is NOT an option [that will need to be considered ;) ]".

Take another 'Alice in Wonderland' journey of the accounts and you will find under "Provisions" that the majority of the Department’s provisions relate to decommissioning the Defence Nuclear Programme, costed at £11.4 billion as at 31 March 2019.

These costs are significant, and with more than £10 billion of the total due more than five years in the future, are uncertain – given the inherent uncertainty associated with long-term liabilities. The nuclear decommissioning provision has decreased by £7.4 billion during 2018-19, mostly due to a change in the HM Treasury discount rate used to value the provisions. Only £147 million of the balance was utilised [for work done] in 2018-19

S M H
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Re: Dreadnought Class SSBN

Postby S M H » 12 Jan 2020, 14:06

ArmChairCivvy wrote:He was planning to have the Delivery Agency under the Treasury (where it now ain't)... but in that way one can make sure that "failure is NOT an option [that will need to be considered ]".
This shows the lack of forward planning that the treasury spending driven SSDR 10 put the nuclear program into the core defence budget. rather than in a separate budget that had direct treasury oversite..
NickC wrote:C. Primary build facility: new facilities at the BAE Systems-operated dockyard in Barrow-in-Furness (Cumbria), costing £240 million to upgrade aging facilities and support improved submarine construction techniques, 116% over budget.
Part of the overspend in barrow was due to legacy shipbuilding on the site. That caused delays and disposal costs that were not budgeted for. The driving requirement was the new reactor with the inclusion of the heat exchangers within the reactor shielding (upgraded safety requirement.). This required a larger ring manufacturing plant than the astute's needed. With additional alterations to the Devonshire hall also required as the increase in size of the hull. With hindsight the tresuary should reappraise its yearly budget constraints. By multiple year budgeting allowing forward loading of programs allowing speeder production reducing costs per unit. We could have had a eighth SSN rather than seven. Had this been done in the past.

jonas
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Re: Dreadnought Class SSBN

Postby jonas » 29 Feb 2020, 07:28

Thales wins £330m contract for Sonar and Periscope systems :-

https://www.gov.uk/government/news/330- ... submarines

NickC
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Re: Dreadnought Class SSBN

Postby NickC » 21 Mar 2020, 10:14

Lockheed awarded additional USN $601 million contract 19th March for Trident II D5 Production & Deployed Systems Support, UK funding $93 million, all work to be carried out in US.

UK percentage ~15%, potential overall contract value ~$1.3 billion, completion date Sep 2024


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