anti-submarine warfare

From Norman Friedman's US Small Combatants, pages 319-323 (most of those pages are pictures of PBRs, a Coast Guard 82-footer and a 57-ft Minesweeper Boat) Table 12-5. Schemes for Ocean Reconnaissance Ships, 31 March 1966 A B C D E May 1967 LBP (ft) 317.5 311 311 315 — 374 LOA...

https://shipbucket.com/drawings/5965

See https://www.navalnews.com/naval-news/2025/02/uk-sets-out-project-cabot-ambition-to-deploy-autonomous-asw-screen-in-the-north-atlantic/ TLDR: Project Cabot proposes as Phase 1 "Atlantic NET" coverage of GIUK gap using a COCONO (contractor owned, contractor operated, naval oversight)...

A comment in another thread abut how Australia should have transferred RAN A4s to the RAAF instead of selling them to New Zealand reminded me of a bunch of other Australian decisions. Meteor for Korean War service when we were building Nene-Vampires. Authorising 30 F104s in early 57, cancelling...

Late 80s (88-90) US Navy Program to replace the E-3C, S-3B and EA-6B carrier-based AEW, ASW and EW aircraft. I believe it evolved into the E-X program to replace the E-2, this is why i’m attaching the image of the Boeing E-X proposal, which is seen here in ASW markings. (VS-24 scouts was an S-3...

Some good news, along with a bit of background: View: https://www.youtube.com/watch?v=y36pTr09f3Y https://www.yahoo.com/news/u-navy-flipping-ship-upcycled-134616867.html https://gcaptain.com/saving-rv-flip-from-the-wreckers-clawsand-its-story-is-mind-blowing/...

Since there aren't any large threads for FREMM already, I figured I would create one specifically to discuss the background and development of the FREMM-EVO, a pair of interim frigates ordered for the Marina Militare Italiana. Background: Before we talk about the FREMM-EVO, we should talk...

Source: https://www.shipscribe.com/usnaux2/AG/AG158.html Source: https://www.shipscribe.com/usnaux2/AG/AG158-p.html

The three Tiger class cruisers arouse strong opinions. As the only major non-carrier RN warships built after WW2 they mark the transition of the RN from a force built round its battleships' big guns to a missile dominated navy. The 6" and 3" guns fitted to them were supposed to be a new approach...

Those who tought, like me, that all the German engineering expertise on hardware airships ended with the Hindenburg, are wrong. The BA/MA in Freiburg has a file (included in RM 7/2382), dated 12.2.1938,and stemming from the Kriegsmarine, refering to a proposal, serious enough to the point of...

The saga of the Royal Navy's carriers after 1966 has been the main focus of interest here, but the workhorse of the RN then as now was the frigate. By the 1970s the RN had plans to replace its Type 12 Leander class frigates with the larger all missile armed Type 22. Leanders were designed...

The Norwegian Navy seems to be circling in on a few options for their new multirole frigates to replace the Nansen class. View: https://twitter.com/JUitdeketting/status/1814370088583086517?t=vNTJSQAK8fIzGqBC2yZnkw&s=19

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What it says on the tin...

Perhaps the most ambitious NATO programme of the 1980s was an attempt to design a common escort ship platform for NATO navies: NATO Frigate 90. https://www.secretprojects.co.uk/threads/nfr-90-and-other-pre-horizon-aaw-projects.923/ The project foundered as it became too expensive and failed to...

An article about the Irish having to call the RN to scare a Russian sub away from its territorial waters last summer, and thought a sub chaser would be able to solve that problem…but sensors and weapons for ASW have come a long way, and can a ship be built small and cheap enough to really mimic...

Briefly mentioned here, I remember stumbling across this system on another, now defunct, website covering US sea mines. If I remember, the project dated from the 1970s, and included two variants of rising mine, one based upon a small torpedo, the other rocket-propelled.

I was curious to see if there had been any drawings of this paper ship plan. Basically a anti sub/ trade lane protector ship for th usn, 20 s-3 in 2 squadrons plus 4-8 small anti snuper aircraft (presumably a-4 but no design specified) and 16 sea kings, to be biult in the 70's to replace the...

Been trying to find out more on this subject, but there seems to be frustratingly little. I'm interested in finding out data on 1970s-1980s soviet and american radar processors to form an idea about the oft-mentioned gap between the two in this domain. i'm not a computer man so anything detailed...

A few months ago, I posted a thread on a briefing with several more or less obscure frigate concepts for the USN. One of the designs included in that brief is the PXM, which I described at the time as a rabbit hole. This thread is my attempt to chase that rabbit as far as I can go, starting from...