UK’s uncrewed experimental sub shows it can fire torpedoes
It involved the Excalibur launching a heavyweight torpedo “jointly developed by the US and Australia,” which implies it was the Mk 48 torpedo currently carried by all US Navy submarines. REG AD googletag.cmd.push(function() { googletag.display('labrador/thereg/article/desktop/b'); }); Also according to Downing Street, this was the first time either the US or UK has launched a torpedo from an underwater drone, rather than a crewed submarine.
- ▪It involved the Excalibur launching a heavyweight torpedo “jointly developed by the US and Australia,” which implies it was the Mk 48 torpedo currently carried by all US Navy submarines.
- ▪REG AD googletag.cmd.push(function() { googletag.display('labrador/thereg/article/desktop/b'); }); Also according to Downing Street, this was the first time either the US or UK has launched a torpedo from an underwater drone, rather than a
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| Original publisher | The Register |
| Canonical URL | https://www.theregister.com/offbeat/2026/09/23/uks-uncrewed-experimental-sub-shows-it-can-fire-torpedoes/5298308 |
| Publication time | Wed, 23 Sep 2026 10:30:00 +0200 |
| Retrieval time | 2026-09-23T08:34:30.534Z |
| Last seen | 2026-09-23T08:34:30.534Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | TjqX3Fj2SSEu · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
(function() { let windowUrl = window.location.href; windowUrl = windowUrl.substring(windowUrl.indexOf('?') + 1); let messageElement = document.querySelector('.shareableMessage'); if (windowUrl && windowUrl.includes('code') && windowUrl.includes('expires')) { messageElement.style.display = 'block'; } })(); offbeat UK’s uncrewed experimental sub shows it can fire torpedoes XV Excalibur hailed as first US or UK underwater drone to let one off in tests Dan Robinson Dan Robinson IT INFRASTRUCTURE REPORTER Published wed 23 Sep 2026 // 09:30 UTC READ MORE Cyber vulnerability sweep picks up Royal Navy drones sending data to China August 10, 2026 No captain, my captain: Navantia floats crewless warship May 24, 2026 Royal Navy chief backs drones, autonomous weapons in ‘Hybrid Navy’ May 3, 2026 Iran…
Excerpt limited to ~120 words for fair-use compliance. The full article is at The Register.
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