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3 New Navy Vessels for Irish Naval Service

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  • Registered Users Posts: 1,100 ✭✭✭jonnybigwallet


    Thank you.



  • Registered Users Posts: 3,748 ✭✭✭roadmaster


    Ill post the link later but in the british times its saying naval vessels will also be kitted out with primary radar as well as land based radar



  • Moderators, Education Moderators Posts: 26,402 Mod ✭✭✭✭Peregrine


    The Commission on the Defence Forces is set to recommend the purchase of primary radar systems which would allow it to track aircraft that seek to evade detection in Irish airspace.


    Ireland has secondary radar at a number of airports, which can only see an aircraft enter Irish airspace when its transponder is turned on. Similar recommendations are expected for the navy to assist it in monitoring Irish territorial waters.




  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    All the P60 class have a mast designed to carry Air Search radar, but the equipment was never included in the final build. They could be added at any time, with some minor internal modification.



  • Registered Users Posts: 3,943 ✭✭✭sparky42


    As you say they were designed for such capability so it wouldn't be a huge ask for them, don't think the 50's can be upgraded though? Another question for upgrades would be containerised towed arrays, I mean the 60's do have the connections for containers aft, and it would be a way to both increase our detection capabilities and be a way to build up experience if we were to move towards more capable ships.



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  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    Yes sort of. While you could fit the equipment, what you lack is the Ops Room environment a proper warship would have, where the CO can control all domains, as well as manage navigation of the ship, without distraction. Jury rigging towed sonar works fine if you are searching the seabed for sunken vessels or objects, but wouldn't suffice in a tactical environment.

    P50 had a different mast to the P60.



  • Registered Users Posts: 3,748 ✭✭✭roadmaster




  • Registered Users Posts: 16,751 ✭✭✭✭banie01


    The ops room and the fusion of sensor info at a single point are IMO vital to successful operation of any picket/detection/defence.

    I am heartened to see the Minister acknowledge the shortcoming in our ability to provide even a notional defence. It is a failing that needs addressing and if I am completely honest? It is one I would hope is addressed by greater PESCO and NATO integration.

    As with all our shortcomings, the ability to integrate and train with friendly forces who are already operating ASW and anti-mine ops would greatly help in getting a skills base in place.

    I am fully of the opinion that we are in need of greater naval ability. We lie in a strategic area and aswell as that we cannot presume to rely on external salvation for our defensive failings without ourselves providing at least the very notional capabilities of self defence. In Ireland's case in particular, our areas of responsibility are our Island, our EEZ and Airspace and in supporting our UN missions.

    The P60's afaik have the mast space and extra power availability to run Air Search radar. Space for fit of a capable ASM system may be an issue? Is there space for a Vertical Launch Cell? Or would a palletised system have sufficient deck space?

    I think where we stand regarding current fleet and manpower are the issues that need to be addressed 1st.

    Training and retaining manpower to run what we have needs to be addressed before we get the lads Gucci gear 😉



  • Registered Users Posts: 1,100 ✭✭✭jonnybigwallet


    Thank you.



  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    Yes, one deck below the bridge(which was already quite spacious). Got less use as the Sonar and later on Heli ops were removed.



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  • Registered Users Posts: 3,748 ✭✭✭roadmaster


    So when Eithne first saled we are now looking in are vessels for the capabilty she then had



  • Registered Users Posts: 3,943 ✭✭✭sparky42


    Yes and no, from memory wasn’t the sonar a bit of a bodge job with a dunking sonar fitted? But yes in terms of moving back towards “mil spec” designs.



  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    That and more. We never got up and running properly with heli-ops at sea. We went for the smallest possible LOA, purely because the start point was the existing P21 design. Very early renders had a P20 silhouette, lengthened, and a helideck on the back behind a large single funnel. Not unlike the Niels Juel class.

    NEVESBU twisted our arm and quite rightly told us to add a hangar within which maint could be carried out on the aircraft at sea (to a point), and because you need to be your own ATC, take it all to a room away from the large bridge, You already need to add a deck to the superstructure anyway to fit the heli inside.

    The Sonar didn't last long, I believe it didn't do well in normal atlantic conditions, and the cavity it recessed into took up valuable space and was labour intensive. Plessey PMS-26 I believe.

    We spent £25m in 1983 building a ship that was for all purposes a corvette or small frigate, just without any of the ASW capability the NS had 10 years previous. That's about €75m in todays money (not including heli, they were £5m each- €15m by todays money.)

    We got almost 40 years of excellent service from the ship, who's career has ended prematurely due to crewing shortages. The only flaw was we didn't order a 2nd, and we didn't improve on it's design, instead abandoning the idea of a helideck completely, when we set about building the next generation of OPVs, 2 decades later. The irony of it all is the P50 design is based on a type that had a helideck capable of operating an Alouette III helicopter, and the NZ OPV is based on our P50 class, except they added a Helideck.

    I'm hoping the next generation of ships will have helidecks in the same way all our current ships have a main gun. It adds huge capability to the ship, once you build the deck big enough to accomodate the average sized naval heli in use. Lots of praise around the Proposed EPC, which we could tailor, equipment wise to our own needs, but with a standard hull. It would make the inevitable P50 and maybe P60 replacement process much simpler, and faster.

    Meanwhile closer to home, we are still in the process of developing our EPV/MRV. Expect it to be along the lines of HMNZS Canterbury, except incorporating the many lessons NZ have learnt during its service. With A huge helideck and Vehicle deck. Because as we have found, these open spaces can end up being used for any number of purposes you never thought of when the ship was being built.



  • Registered Users Posts: 243 ✭✭ancientmariner


    P31 had the installed capability on the airside to maintain, service, and fuel it's own helicopter. It had full raw radar coverage for smaller aerial targets out to 75miles and large aircraft to more than 100miles and with greater ranges on Secondary mode. The Sonar wasn't installed as a bodge job. It was a PMS 26 with passive and active scanning mode with a retractable dome. In the two years I had her, all systems worked as designed, including a functioning Ops room, infrared scanning, optical sights, and fire control by sight and by radar ball marker, range by laser.

    She had the facility of IFF and could carry out an ATC function if required. Like all such systems, it's durability depended on maintenance and calibration, which in turn requires the will to retain function. When the main utility was withdrawn an Irish choice was made and things got shut down and repurposed for short term needs. In all frontline units decisions must be made for operational reasons only and technical short falls must not kill off a tactical prime advantage.



  • Registered Users Posts: 3,748 ✭✭✭roadmaster


    So would Eithne of being considered top of the range when 1st launched?



  • Registered Users Posts: 243 ✭✭ancientmariner


    The French Naval Dept. Engineers who calibrated the flight deck and assessed the facilities gave her a higher suitability rating than their own D610 Tourville class GM Destroyers. She was branded a White Elephant by some because she was beyond their capacity to understand her potential. Her hangar became a lecture room, dining hall, Gym, and a shed.



  • Registered Users Posts: 1,100 ✭✭✭jonnybigwallet


    I remember that there was a suggestion years ago that Verolme Cork Shipyard could have had a good future by specialising in constructing OPV's / Corvettes and other smaller naval vessels. Shame it never came to pass.



  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    Not in its current layout. Or location. And the fact all its cranes or gone, most of the heavy machinery required to build shops was sold off and the skills required to build ships are gone for at least a generation now,

    But otherwise yeah.

    Verolme was a Great yard in the 1960s, building ships the way they were built in the 1960s. But technology moved on and Verolme didn't catch up.

    Because our government are inward looking, not viewing our seas as an asset, there is no incentive for an international shipbuilder to take on what is now the property of DSG and modernise it to modern standards. When you see where the last 6 Naval vessels were built in Devon, on a site and location not unlike Rushbrooke, you see what could be achieved.


    There is potential that the offshore wind industry could see new life in the old yard, but that's still on paper only. The problem is, in the last 40 years since the yard chosed for shipbuilding as equipment ceased functioning, it was scrapped and removed. Barely a singe cent as been spent maintaining what is there. Nearby housing is encroaching to the extent that any attempt to realign fabrication sheds would be met with howls of objection.

    Race is On by Irish Ports to Service Offshore Wind Farms (afloat.ie)



  • Registered Users Posts: 547 ✭✭✭shillyshilly


    It's something I wondered about.... the chronic understaffing is ridiculous. I just hope there isn't kit bought and not used properly as people aren't available to use it.



  • Registered Users Posts: 243 ✭✭ancientmariner


    When the Irish Government( essentially TK Whittaker and Sean Lemass ) founded ISL they also acquired Cork Dockyard so they had a Fleet and a means to repair it from about 1940. Over the years between Cork Dockyard and later VCD a full drydock service was available to all but critically the Navy had a drydock on call. With the advent of DSG I detect a dilution of Drydock services and with the closure of Dublin Ship repair and drydock we are in a precarious position and our leaders seem unaware. The depiction of the DSG proposal shows absence of Drydock buildings and workshops. Their does not seem to be any cranes for mast work etc. An investment in the naval Drydock (bigger than Rushbrooke facility) may be the only long term strategic answer.



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  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    Agree 100%

    We are lucky to still have bare (ish) ground on the naval base to create such a facility before its too late.

    Most modern European yards are doing all assembly indoors now, either within the covered drydock space itself, or like Govan, Built in sections indoors, Mated on a hard stand outdoors, and finally entering the water either after being driven on to a heavy lift ship which brings it to deeper water to be floated our, or by syncrolift. All options still possible, once the poor road access for large loads is taken into consideration.

    Germany and some dutch yards still like launching theirs sideways into canals or rivers. Apparently less stressful on the hull than the stern or bow first launch.



  • Registered Users Posts: 243 ✭✭ancientmariner


    The critical matter is the availability of a suitable drydock for routine and essential repairs, painting, and maintenance. Shipbuilding is a different but possibly a worthwhile venture but not for Haulbowline. We could aim for a covered drydock, with a controllable environment, so that external electronics can be safely opened up. In the meantime nationally we must decree that a No drydock scenario must never emerge. A further consideration for future refits are steps towards Green propulsion and storage of compatible fuel.



  • Moderators, Education Moderators Posts: 26,402 Mod ✭✭✭✭Peregrine




  • Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,719 Mod ✭✭✭✭Tabnabs




  • Registered Users Posts: 3,442 ✭✭✭Dohvolle


    We'll see how welcoming she is when her voters are complaining that they can no longer access the pier with the only usable quay because of new security fencing and something about ISPS Code Level 2.



  • Registered Users Posts: 1,100 ✭✭✭jonnybigwallet


    That's an issue all right. Tis a favourite spot for family walks on the weekend and has been for decades.



  • Registered Users Posts: 1,100 ✭✭✭jonnybigwallet





  • Registered Users Posts: 547 ✭✭✭shillyshilly


    the yacht clubs will have that shot down in an instant



  • Moderators, Recreation & Hobbies Moderators, Sports Moderators Posts: 15,719 Mod ✭✭✭✭Tabnabs


    Why, what business is it of private members clubs in a local authority owned harbour?



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  • Registered Users Posts: 547 ✭✭✭shillyshilly


    Because they've both been there for over 100 years... I doubt they're going to say "ah well" if Dun Laoghaire CoCo or the Navy start setting up stuff which starts to inhibit how they function.

    If there is a way where they can all co-exist, of course they haven't a leg to stand on, but I just don't see it being welcomed if there is a sniff of a land grab or restrictions on movements.



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