anti-submarine warfare

  1. Grey Havoc

    R/P FLIP (FLoating Instrument Platform)

    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/...
    • Grey Havoc
    • Thread
    • acoustic research anti-submarine warfare cold war cold war ii department of the navy early 21st century experimental late 20th century oceanographic research office of naval research post-cold war research research ship research vessel flip scripps institution of oceanography sonar u.s. navy united states navy uss flip war on terror
    • Replies: 3
    • Forum: Military
  2. P

    FREMM-EVO

    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...
    • Phoenix_jz
    • Thread
    • anti-submarine warfare asw cold war ii early 2020s frigate italian navy italian republic marina militare
    • Replies: 18
    • Forum: Secret Naval Projects
  3. A Tentative Fleet Plan

    SCB 198 Escort Research Ship

    Source: https://www.shipscribe.com/usnaux2/AG/AG158.html Source: https://www.shipscribe.com/usnaux2/AG/AG158-p.html
    • A Tentative Fleet Plan
    • Thread
    • anti-submarine warfare bureau of ships buships cold war destroyer escort early 1960s experimental gas turbine late 1950s research test ship testbed trials ship united states united states navy
    • Replies: 12
    • Forum: Secret Naval Projects
  4. uk 75

    Tiger class cruisers opinions

    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...
    • uk 75
    • Thread
    • anti-submarine warfare cold war command cruiser command ship cruiser east of suez falklands war fleet air arm gun cruiser helicopter and command cruiser helicopter cruiser naval fire support north atlantic treaty organisation nsfs post-world war ii royal navy vstol carriers world war ii
    • Replies: 193
    • Forum: Alternative History and Future Speculation
  5. W

    Kriegsmarine Kleinluftschiffe (Airships)

    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...
    • Wurger
    • Thread
    • airships anti-submarine warfare kriegsmarine late 1930s lighter than air lta maritime patrol nazi germany pre-world war ii third reich
    • Replies: 5
    • Forum: Secret Early Aircraft Projects
  6. uk 75

    Royal Navy frigates in the 70s

    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...
    • uk 75
    • Thread
    • 1970s aaw alternate history anti-air warfare anti-submarine warfare anti-surface warfare area air defence asuw asw cold war escort vessel frigates great britain late 1960s north atlantic treaty organisation royal navy
    • Replies: 45
    • Forum: Alternative History and Future Speculation
  7. Moose

    Norwegian AAW/ASW Frigate 20XX

    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
    • Moose
    • Thread
    • 2020s anti-air warfare anti-submarine warfare anti-surface warfare cold war ii frigate royal norwegian navy
    • Replies: 7
    • Forum: Secret Naval Projects
  8. flateric

    McDonnell Aircraft Model 73

    ...
    • flateric
    • Thread
    • 1950 anti-submarine warfare asw cold war early 1950s korean war mcdonnell mcdonnell aircraft corporation patrol helicopter u.s. navy xhp competition united states united states navy
    • Replies: 0
    • Forum: Secret Postwar Aircraft Projects
  9. B

    Feasibility Study For A Maritime Reconnaissance Aircraft - Hawker Siddeley Aviation Advanced Projects Group - 1962

    What it says on the tin...
    • Barrington Bond
    • Thread
    • anti-submarine warfare cold war early 1960s elint great britain hawker siddeley aviation ltd maritime surveillance raf coastal command royal air force strategic reconnaissance supersonic variable geometry
    • Replies: 21
    • Forum: Secret Postwar Aircraft Projects
  10. uk 75

    Could NATO Frigate 90 have been made to work?

    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...
    • uk 75
    • Thread
    • 1980s 1990s alternate history anti-air warfare anti-submarine warfare anti-surface warfare bundesmarine cold war frigate marina militare marine nationale maritime command (canadian armed forces) north atlantic treaty organisation royal navy royal netherlands navy royal spanish navy united states navy
    • Replies: 7
    • Forum: Alternative History and Future Speculation
  11. J

    Modern submarine chaser

    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...
  12. C

    SCB.100 class cvs

    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...
    • Cjc
    • Thread
    • 1970s aircraft carrier anti-submarine warfare bureau of ships buships carrier cold war late 1960s naval sea systems command naval ship systems command navsea navships nuclear powered vessels united states united states navy
    • Replies: 39
    • Forum: Secret Naval Projects
  13. TomS

    PXM -- A modern subchaser for the USN

    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...
    • TomS
    • Thread
    • 1980s advanced marine vehicle anti-submarine warfare anti-surface warfare boeing continuing concept formulation (conform) escort vessel frigate hydrofoil naval sea systems command navsea navsea surface ship continuing concept formulation north atlantic treaty organisation patrol combatant multi-mission patrol vessel subchaser surface effect ship united states united states navy
    • Replies: 9
    • Forum: Secret Naval Projects
  14. Forest Green

    Optical-Acoustic Sonar for detection of Submarines from Airborne Assets

    View: https://twitter.com/SubBrief/status/1596857511415406592
  15. Grey Havoc

    Maritime Airborne Warning System (Franco-German project)

    https://www.defensenews.com/global/europe/2022/10/11/germany-awaits-frances-signal-on-new-sub-hunting-planes/
    • Grey Havoc
    • Thread
    • anti-submarine warfare cold war ii early 2020s federal republic of germany france french fifth republic
    • Replies: 0
    • Forum: Military
  16. F

    About the Harpoon Block 1D

    White there is information about the missile itself: https://www.designation-systems.net/dusrm/m-84.html https://www.docdroid.com/WbANE9i/agm-84-harpoon-missile-block-1d-brochure-pdf#page=2 There are mentions that, one of the reason it wasn't produced, was that the missiles were too big for...
    • FIMMCH98
    • Thread
    • anti-ship missile anti-submarine warfare asuw boeing cold war harpoon mcdonnell douglas post-cold war surface-to-surface missile united states navy us navy
    • Replies: 27
    • Forum: Military
  17. uk 75

    A NATO frigate

    Wiki has quite a good summary of the abortive attempt in the 1980s to design a common escort ship for NATO navies https://en.m.wikipedia.org/wiki/NFR-90 The thread about the Kidds for the RN reminded me of this programme. It ought to have been possible to design a ship flexible enough to...
    • uk 75
    • Thread
    • 1980s anti-air warfare anti-submarine warfare anti-surface warfare bundesmarine cold war frigate marina militare marine nationale maritime command (canadian armed forces) north atlantic treaty organisation royal navy royal netherlands navy royal spanish navy united states navy
    • Replies: 3
    • Forum: Alternative History and Future Speculation
  18. uk 75

    HMS Cockade in Korean War

    A friend of mine has asked me to check out a rumour that HMS Cockade sank a suspected Soviet sub while serving with a US force in the Korean War. He thinks the papers are embargoed until at least 2050.
    • uk 75
    • Thread
    • anti-submarine warfare attack submarine c-class destroyer cold war diesel-electric submarine korean war red fleet royal navy soviet navy ssk submarine
    • Replies: 26
    • Forum: Military
  19. helmutkohl

    Sikorsky CH-148 Thread

    Didn't really see a thread on this so here we go! I guess its not so popular because only Canada operates it.. but why they chose this instead of more Merlins is beyond me... 82% grounded due to cracks :eek...
    • helmutkohl
    • Thread
    • anti-submarine warfare canada ch-148 cold war maritime command maritime command (canadian armed forces) post-cold war royal canadian air force royal canadian navy sikorsky
    • Replies: 9
    • Forum: Aviation & Space
  20. Grey Havoc

    NB57 / RD09 ASW/ASuW unmanned surface vehicle family (Turkey)

    https://www.defensenews.com/unmanned/2021/07/26/aselsan-teams-up-with-local-shipyard-for-two-new-naval-drones/
    • Grey Havoc
    • Thread
    • anti-ship anti-submarine warfare surface drone turkish naval forces turkish navy unmanned usv
    • Replies: 1
    • Forum: Military
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