---
title: "Replacement Secondary Submarine Radar and Support"
ocid: "ocds-h6vhtk-0544ad"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0544ad"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0544ad.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0544ad.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "DEFENCE EQUIPMENT AND SUPPORT"
published: "2025-10-13"
---

# Replacement Secondary Submarine Radar and Support

Buyer: DEFENCE EQUIPMENT AND SUPPORT  
Current stage: Tender  
OCID: ocds-h6vhtk-0544ad

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## Summary

The procurement process for the "Replacement Secondary Submarine Radar and Support" is spearheaded by Defence Equipment and Support, a central government entity based in Bristol, United Kingdom. This procurement is structured as a competitive flexible procedure targeting the radar industry with an emphasis on works, specifically radar and radar station construction work. The procurement went through several stages including planning, tender, and then cancellation in October 2025. Although initially active, the tender was ultimately cancelled as of 13th October 2025, due to a review to consider the procurement's scope and timeline. The tender was originally estimated to require a five-year commitment with an anticipated start in October 2025.

This tender presented a potential opportunity for growth for businesses capable of delivering innovative radar solutions that meet stringent environmental requirements, including electromagnetic compatibility and toxicity controls. The project initially intended to replace portable radars on Royal Navy submarines, creating a niche for manufacturers and technical service providers in the defence sector. Companies with a demonstrated ability to provide cutting-edge radar technology while ensuring compliance with rigorous technical and safety standards would have been well-suited to compete for this contract. The selective procurement method suggests that businesses skilled in navigating complex regulatory environments would be advantageous candidates in future similar opportunities.

## Notice

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 requirement is the delivery of 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 (estimated) - this is anticipated as a timescale of 6-months for replacement from contract award / commencement of contract, followed by 4.5 years of support.

### Planning Information

Preliminary Market Engagement (PME) event will take place via Microsoft Teams on Monday 16th June 2025 at 1000. Register interests with contracting authority's point of contact for invites to the PME event to be sent to interested parties

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/064551-2025 |
| Notice type | UK12 - Procurement Termination Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning, Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 13 Oct 2025 |
| Submission deadline | 11 Jul 2025 |
| Future notice date | 25 Jul 2025 |
| Award date | Not specified |
| Contract period | 12 Oct 2025 - 12 Oct 2030 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £800,000 |
| Lots value | £800,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DEFENCE EQUIPMENT AND SUPPORT |
| Additional buyers | Missing |
| 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
- 45 - Construction work

### Codes

- 35722000 - Radar
- 45223400 - Radar station construction work

## Release History

- 13 Oct 2025 at 08:04 - TenderCancellation - UK12 - Procurement Termination Notice - https://www.find-tender.service.gov.uk/Notice/064551-2025
- 7 Jul 2025 at 14:24 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/037920-2025
- 30 Jun 2025 at 08:53 - PlanningUpdate - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/035981-2025
- 6 Jun 2025 at 14:39 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/030682-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/064551-2025
  13th October 2025 - Procurement termination notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/037920-2025
  7th July 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/035981-2025
  30th June 2025 - Preliminary market engagement notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/030682-2025
  6th June 2025 - Preliminary market engagement notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-2763
  Preliminary Market Engagement Event

## Notice URLs

- https://www.contracts.mod.uk/
- https://www.gov.uk/government/organisations/defence-equipment-and-support
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-h6vhtk-0544ad. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0544ad.json.