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Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Wed Mar 20, 2024 9:16 pm
by Pelican
UK spending £8m to buy new heat exchangers for Astute subs

The Ministry of Defence has formally announced its intention to procure two reactor fresh water-cooling heat exchangers for ASTUTE class submarines, with a contract value set at £8 million.

According to a Voluntary Ex-Ante Transparency (VEAT) Notice published on 18 March 2024, this procurement forms an integral part of the ongoing Deep Maintenance Programme for the submarines.

The notice specifies that the “Platform Equipment Delivery Team, which is part of the Ministry of Defence (MOD), intends to award a contract to Naval Group Limited for the purchase of two additional Fresh Water Cooling Heat Exchanger (HEATEX) units to be installed on ASTUTE class submarines.”

The MOD notice states, “Reactor Fresh Water-Cooling Heat Exchangers/Coolers are fundamental to the operation of platforms and are linked directly to delivery of submarine outputs and platform availability; they also fulfil a key nuclear reactor safety function.”

This procurement aims to “procure 2 modified Heat Exchangers from Naval Group UK, the Original Equipment Manufacturer (OEM) to meet the requirement for the ASTUTE Class Deep Maintenance Period (DMP) whilst an enduring support strategy for Coolers is developed.”

The notice also expands upon underscores Naval Group’s unique position as the OEM capable of providing these bespoke-designed units, crucial for the submarines’ safety and operational functionality. The MOD justifies the direct award of this contract under the regulations of The Defence and Security Public Contracts (Amendment) (EU Exit) Regulations 2019 and the Defence and Security Public Contracts Regulations 2011.

The justification for not proceeding with a prior publication of a contract notice is stated as, “It is considered that this contract can be awarded without prior publication of a contract notice in the UK e-notification service in accordance with regulation 16(1)(a)(ii) of the Defence and Security Public Contracts Regulations 2011 for technical reasons.”

Further emphasising, the notice elaborates:

“The Units provide Sea Water cooling to the Boat’s Fresh Auxiliary Water Cooling System and the Reactor Compartment Fresh Water Cooling System. They are a vital part of the nuclear safety function and must work with and be compatible with the other systems on the Boat.”

The announcement also indicates potential subcontracting opportunities, although specific details regarding these opportunities were not provided within the notice.

Source UKDJ

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Tue Mar 26, 2024 12:06 pm
by Pelican
Navy Lookout
HMS Ambush maintenance continues in Faslane. (She has not been to sea since Autumn 2022)
Photos https://twitter.com/NavyLookout/status/ ... 72/photo/2

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Wed Apr 10, 2024 4:23 pm
by Pelican
The Royal Navy’s Astute Class submarine ~ Conning Tower

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Wed Apr 10, 2024 10:53 pm
by Pelican
An Astute with deck cargo or should that be casing cargo?

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Mon Apr 22, 2024 10:58 pm
by Pelican
6th Astute class submarine, HMS Agamemnon formally named at BAES Maritime Barrow today ahead of being launched later this year.

New British nuclear submarine named HMS Agamemnon
https://ukdefencejournal.org.uk/new-bri ... agamemnon/

The Royal Navy’s Astute class submarines: Part 1 – development and delivery
https://www.navylookout.com/the-royal-n ... -delivery/

The Royal Navy’s Astute class submarines: Part 2 – platform design
https://www.navylookout.com/the-royal-n ... rm-design/

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Tue Apr 23, 2024 11:07 am
by Pelican
Royal Navy's newest submarine, HMS Agamemnon, officially named in Barrow

https://www.royalnavy.mod.uk/news-and-l ... -in-barrow

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Sat May 11, 2024 4:02 pm
by Pelican
UK Defence Staff in US
One of the best things for a submariner is an uninterrupted view of the night sky when you surface.
This incredible image was captured by HMS Anson on a recent visit to the US Navy’s Atlantic Undersea Test and Evaluation Center in the Bahamas.

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Tue May 21, 2024 3:00 pm
by Pelican
Royal Navy
HMS Anson, the Royal Navy's newest and most advanced hunter-killer submarine, is now on the verge of joining her sisters on operations.
The Astute-class boat conducted trials off the east coast of the United States and in the Caribbean Sea to test her state-of-the-art systems and weaponry.
Read more: https://www.royalnavy.mod.uk/news-and-l ... fVoGOo6ZVD

Re: RN Submarines; Astute Class (Nuclear) 2010

Posted: Mon Jun 03, 2024 3:04 pm
by Pelican
Inside the Navy's new £1billion supersub: Deadly Hunter Killer submarine is capable of hearing a ship leaving port in New York... while sat underwater in the English channel.

HMS Ambush (pictured), the Royal Navy's newest nuclear attack submarine, is the believed to be most sophisticated and powerful vessel of her type ever built.