---
title: "Replacement Secondary Submarine Radar and Support"
ocid: "ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83.json"
source: "Contracts Finder"
current_stage: "Planning"
buyer: "MINISTRY OF DEFENCE"
published: "2025-06-05"
---

# Replacement Secondary Submarine Radar and Support

Buyer: MINISTRY OF DEFENCE  
Current stage: Planning  
OCID: ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83

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## Summary

The UK Ministry of Defence, specifically the Defence Equipment & Support (DE&S), is planning a procurement process for the "Replacement Secondary Submarine Radar and Support". This project falls under the radar industry category, with a focus on maritime applications for the Royal Navy's ASTUTE and VANGUARD Class Submarines. The process is currently in the planning stage and includes a key engagement date slated for 13th June 2025. The initial market engagement event is scheduled for 16th June 2025 via Microsoft Teams. This project, classified under the CPV code 35722000, is based in Bristol, England, but encompasses various international locations including the British Overseas Territories and Europe. The procurement will adopt the Competitive Flexible Procedure under the Procurement Act 2023.

This tender presents significant opportunities for businesses equipped to provide innovative radar solutions, particularly those that can manage issues of equipment availability and compatibility with environmental standards. SMEs are particularly suitable to compete in this process, as the procurement is expressly open to these enterprises. Firms with expertise in maritime radar technology and experience in supporting naval platforms could find substantial growth opportunities through engaging with this contract. The procurement pathway will involve a Procurement Specific Questionnaire anticipated for release on 17th June 2025, encouraging technically competent suppliers to demonstrate their capacity and foster potential collaboration with the UK Ministry of Defence. Interested parties can access more details via the Defence Sourcing Portal (DSP).

## Notice

Maritime Radar Update Programme (MRUP) Delivery Team (DT) within Defence Equipment & Support (DE&S), part of the UK Ministry of Defence ("the Authority") is seeking to engage with suppliers for the purposes of procuring, supporting and gaining a clearer understanding of current market capabilities and potential offerings relevant to the Second Submarine Radar (SSR) in Royal Navy (RN) Subsurface ASTUTE and VANGUARD Class Submarines. The current SSR is a portable Commercial OFF The Shelf (COTS) radar that is deployed when the submarine has surfaced, carried to the bridge fin by the crew, clamped to the boat structure, plugged into a vessel power socket and operated. The SSR operates as a second radar or as a backup, should the primary radar fail. It is used to detect the whereabouts of other surface objects and coastlines and is of particular importance when the vessel is approaching or leaving harbour, or in busy shipping areas. The SSR equipment is stored within the submarine when not in use and deployed to the bridge fin when surfaced through a bespoke carriage solution. Currently, this is a bag and pulley system for the carriage and modified COTS mounts for attachment of the radome and display to the vessel mast/structure respectively. The current and previous SSR solutions were subject to high failure rates. The MRUP DT are planning to run a competition via the Competitive Flexible Procedure (Procurement Act 2023) for suitable suppliers to bid. The goal is to leverage industry capabilities to deliver a more innovative solution that addresses availability issues and aligns better with platform environmental requirements, including electromagnetic compatibility and toxicity. The capability is required for a period of 5 years (Refer to additional text). It is the Authority's intent to invite suppliers to a Market Engagement Event who can demonstrate they are commercially compliant and can meet the technical requirements of being able to support the RN Subsurface SSR. During the Market Engagement Event the MRUP DT will give a presentation which will describe the SSR operating environment and provide an opportunity for suppliers to engage with questions they may have. This Market Engagement Event will take place via Microsoft Teams on Monday 16th June 2025 at 1000. Invites to the event will be sent to interested parties in due course. The Authority intends to release a Procurement Specific Questionnaire (PSQ) associated with this opportunity, currently scheduled for 17th June 2025. Please note this is an estimated date and subject to change. The Authority will be conducting all applicable advertising and potential procurement exercises via the Defence Sourcing Portal (DSP). Interested parties are strongly encouraged to review the information published by DSP. Interested parties will need to gain access to DSP to ensure they acquire the most up to date information. Additional information: Supplement to main description: The capability requirement for a period of 5 years is subject to change, this is anticipated as a timescale of 6-months for replacement from contract award / commencement of contract, followed by 4.5 years of support. It is noted there is no obligation for the MOD to continue with the requirement following Preliminary Market Engagement.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/885ec89f-a15a-46b6-ab05-26c6e12b7d05 |
| Notice type | Market Engagement Notice |
| Procurement type | Standard |
| Procurement category | Not specified |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 5 Jun 2025 |
| Submission deadline | Not specified |
| Future notice date | 13 Jun 2025 |
| Award date | Not specified |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planning |
| Lots status | Not specified |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINISTRY OF DEFENCE |
| Locality | BRISTOL |
| Post town | Bristol |
| Postcode | BS34 8JH |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK5 West of England |
| ITL 3 | TLK52 Bath & North East Somerset and South Gloucestershire |
| Local authority | South Gloucestershire |
| Electoral ward | Stoke Park & Cheswick |
| Westminster constituency | Filton and Bradley Stoke |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 35 - Security, fire-fighting, police and defence equipment

### Codes

- 35722000 - Radar

## Release History

- 5 Jun 2025 at 15:24 - Planning - Market Engagement Notice - https://www.contractsfinder.service.gov.uk/Notice/885ec89f-a15a-46b6-ab05-26c6e12b7d05
- 19 May 2025 at 16:30 - Planning - Market Engagement Notice - https://www.contractsfinder.service.gov.uk/Notice/cf3f5de9-af20-46f8-8aa8-051f16a26ed0

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/885ec89f-a15a-46b6-ab05-26c6e12b7d05
  5th June 2025 - Early engagement notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/cf3f5de9-af20-46f8-8aa8-051f16a26ed0
  19th May 2025 - Early engagement notice on Contracts Finder

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-1c35ba9b-3d38-4d55-aa80-e7bc1b18da83.json.
