Alternate warships of nations

Sargon

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Acadia class Multi-Role Command Cruiser

Operators

- Royal Canadian Navy (2018-present) [5]
- Royal Navy (2018-present) [5]
- Royal Australian Navy (2019-present) [2]
- Indian Navy (2021-present) [4]
- South African Navy (2022-present) [1]
Number Built
17 (5 Royal Canadian Navy, 5 Royal Navy, 4 Indian Navy, 2 Royal Australian Navy, 1 South African Navy)
Builders
- Newfoundland Shipyards, Bonavista, Newfoundland and Labrador, Canada (1x Royal Canadian Navy)
- Canadian Shipbuilding Corporation New Brunswick Shipyards, Shediac, New Brunswick, Canada (1x Royal Canadian Navy, 1x Indian Navy)
- Canadian Shipbuilding Corporation Cape Breton Shipyards, Edwardsville, Nova Scotia, Canada (1x Royal Canadian Navy, 1x South African Navy)
- Versatile Pacific Shipyards, Vancouver, British Columbia, Canada (2x Royal Canadian Navy)
- Harland and Wolff Shipbuilders, Belfast, Northern Ireland, United Kingdom (2x Royal Navy)
- Cammell Laird, Birkenhead, Merseyside, United Kingdom (1x Royal Navy)
- Swan Hunter, Wallsend, Tyne and Wear, United Kingdom (2x Royal Navy)
- Australian Shipbuilding Corporation Eastern Yard, Williamstown, Victoria, Australia (2x Royal Australian Navy)
- Mumbai Naval Dockyards, Mumbai, Maharashtra, India (1x Indian Navy)
- Cochin Shipyards, Kochi, Kerala, India (2x Indian Navy)

Displacement
24,670 tons (full load)
Length
829 ft 8 in (252.88 m)
Beam
92 ft 2 in (28.09 m)
Draft
28 ft 7 in (8.72 m)
Complement
886 (90 officers, 112 senior ratings, 684 men)
Propulsion
- 2 AECL HTNR-01 high-temperature gas-cooled prismatic-block-design nuclear reactors
- 4 L&T Nuclear NES-11 nuclear heat exchangers
- 4 Vektris Engineering MS7A geared steam turbines
- 2 General Motors EMD 24-265J2 auxillary diesel power generators
- 4 Western Electric Model 35NS induction electric motors
- 4 Rolls-Royce Kamewa M4550 waterjets
- Research in Motion ISPP-4A integrated power and propulsion system
Power Output
152.32 MW (204,170 shp) maximum power output, maximum available for propulsion 160,000 shp
Top Speed
35.2 knots (40.5 mph, 65.2 km/h)
Range
Theoretically unlimited, original nuclear fuel core lasts 30 months
Endurance
75 days

Armament
- 2 Mk.184AC Poseidon 16-cell vertical launch systems (32 RGM-186A Algoolik anti-ship missiles)
- 2 Sylver 2A80C Nujalik 64-cell vertical launch systems (128 missiles)
- 1 Sylver 2A70C Tornat 64-cell vertical launch system (64 missiles)
- 4 Sea Ceptor V2A 16-cell vertical launch systems (64 CAMM anti-aircraft missiles)
- 1 VL-ASM2 Makara 16-cell vertical launch system (16 RUM-188A Varuna anti-submarine missiles)
- 4 Mk.64F5 155mm/62-caliber naval guns (two two-gun mounts, 650 rounds per gun)
- 8 Mk.95F2 76mm/62-caliber naval guns (four two-gun mounts, 2200 rounds per gun)
- 8 M2 Browning 12.7mm machine guns (4 twin mounts, 2000 rounds per gun)
- 2 Mark 32 SVTT 12.75" triple torpedo tube sets

Radars and Sensor Systems
- DRDO CANTIS Mark 21AV automatic naval tactical data system, containing:
-- Pacific Alliance PS32 liquid-cooled supercomputer
- Commonwealth Air Defense Systems SV-2A Ataksak Anti-Air Missile System, consisting of:
-- 1 Thales Nederland/Research in Motion APAR-3A 3D active phased array radar
-- 1 Thales Nederland/Research in Motion S1850M long-range air-search radar
-- 1 Raytheon AN/SPS-67(V)11 medium-range surface-search radar
-- 2 Thales Nederland/Vektor Electrotechnic Sirius IRST infrared search and track systems
-- 2 Dalsa Technologies Northlight 2A1 electro-optical surveillance and tracking systems
-- 5 Commodore Defense ADV04 continuous-wave fire control radars
-- 2 Raytheon/Vektor Electrotechnic SPQ-9B gunfire control radars
- 2 Rheinmetall Pathfinder Mark II navigation radars
- 1 DRDO CANTIS Mark 22UW anti-submarine warfare system (Type 2084A variable-depth hull sonar, 1 C1633A4 towed sonar array, 1 C1634A1 area sonar system)
- 1 Ultra Electronics S2170 SSTD torpedo defense system
- 1 Raytheon/Vektor Electrotechnic AN/SLQ-32(V)8 electronic warfare system

Aircraft Carried
3 Canadair VS-145C Poseidon anti-submarine tiltwings
12 Dragonflyer X6A maritime amphibious UAV

Boats Carried
4 SB90N Fast Combat Boats

As others say a bit of context such as the POD and some very brief TL details could help. It seems an interesting design however, although the number of VLS appears rather large.

At risk of getting into current politics, good luck getting the British Government to fund 5 nuclear powered battlecruisers (or even 5 patrol boats) as well.

Ignorant question: does Canada have the dock to build a ship that big?

When you are talking about building nuclear battlecruisers then building docks for them is a relatively minor point.


Perhaps before we get a bit too critical of the member, let us at least give them a chance to explain the POD and TL changes because that should provide context. 😉

I'd assume that to get these built you'd need a vastly different Commonwealth etc.

Indeed, which is why this isn't completely impossible. In present context, yes, but with a POD far enough back or impactful enough to cause significant changes then given the AH there could be ways it may be possible.


Sargon
 
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Exactly, perhaps one of the World War's didn't happen and the UK wasn't quite so bankrupt, or there was a much closer aligned Dominion with stronger economic ties and the like. I'd assume greater energy independence too with Nuclear power in the UK and Canada for one thing, meaning they can export energy or gas/oil available. And these're only the battlecruisers, I would assume there's also carriers as well as a significant surface fleet.
And as another possible what if for this TL, what if Canada is the territories formerly known as British North America, maybe the Colonies didn't succeed.
 
I also am not sure about fitting 304 VLS cells on a ship + 2 twin 155mm and 4 twin 76mm gun turrets.

The concept of Kirov like nuclear powered strike cruisers for the Commonwealth could exist in an ATL but the hull is a given size and weapon systems take up a certain deck space and tonnage. Feasability in there continues even in an ATL. Because like, looking at other ships and concepts that exist it might possibly be just about possible but I think combined with the guns it probably does not fit.
Make it an arsenal ship just focused on missiles and you can get similar or larger missile numbers, but no guns. Kirovs have less missiles, thought I guess the anti-ship missiles not being the big Russian/Soviet style ones might help here + there are the asw weaponary of the Kirovs which are also mostly handled by vls cells here. But even if you could do a 1 to 1 missile swap the guns Kirovs have are smaller and less in number (also, as cool as 76mm secondaries are and SAMs I would suggest some proper CIWS other than 50 cals. If you wanna go full futuristic give them a laser or something, nuclear powered already so you don't have issues with not enough power).
 
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I also am not sure about fitting 304 VLS cells on a ship + 2 twin 155mm and 4 twin 76mm gun turrets.

The concept of Kirov like nuclear powered strike cruisers for the Commonwealth could exist in an ATL but the hull is a given size and weapon systems take up a certain deck space and tonnage. Feasability in there continues even in an ATL. Becuase like, looking at other ships and concepts that exist it might possibly be just about possible but I think combined with the guns it probably does not fit.

The ROK's 'Joint Strike Ship' has 100 missiles and is a lot smaller. https://www.navalnews.com/event-new...nwha-ocean-unveils-joint-strike-ship-concept/

Assuming that like modern day, the Commonwealth has smaller weapons than their Russian/Soviet equivalents, it might be high but yeah I'd say it would be possible, maybe drop it to 240 - 250 ish or perhaps say that this is the maximum assuming that you have like a quad pack in a tube or the 304 missiles includes reloads.
 
The ROK's 'Joint Strike Ship' has 100 missiles and is a lot smaller. https://www.navalnews.com/event-new...nwha-ocean-unveils-joint-strike-ship-concept/

Yeah 100 not 300. Plus that concept doesn't also have two twin six inch and four twin three inch guns. Only a single five inch + CIWS.

Assuming that like modern day, the Commonwealth has smaller weapons than their Russian/Soviet equivalents, it might be high but yeah I'd say it would be possible, maybe drop it to 240 - 250 ish or perhaps say that this is the maximum assuming that you have like a quad pack in a tube or the 304 missiles includes reloads.

240-250 sounds like just about doable to me combined with the other stuff the ship has.
 
Aye, its a workable design, just needs a bit of tidying up, reduce the missile compliment somewhat, drop one of the paired 5-inchers and maybe go with 2 CIWS mounts instead of four and you'd be talking.

And don't forget that the Kirov had 352 weapons aboard.
 
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Ignorant question: does Canada have the dock to build a ship that big?
Yes, but the locations mentioned are also nearly green sites. Presuming that you were building the infrastructure from scratch you could build it at whatever size you want. Edwardsville in Nova Scotia (Cape Breton) does have a ship repair facility but I don’t know that they have dry docks. Bonavista in Newfoundland is set up for servicing fishing boats. Shediac in New Brunswick does have a couple shipyards, but again mostly repair and small ship construction. If the Canadian government is building large nuclear vessels in these locations it would be because they had built the capability there. Presumably incorporating the required size into the equation.
 
Yes, but the locations mentioned are also nearly green sites. Presuming that you were building the infrastructure from scratch you could build it at whatever size you want. Edwardsville in Nova Scotia (Cape Breton) does have a ship repair facility but I don’t know that they have dry docks. Bonavista in Newfoundland is set up for servicing fishing boats. Shediac in New Brunswick does have a couple shipyards, but again mostly repair and small ship construction. If the Canadian government is building large nuclear vessels in these locations it would be because they had built the capability there. Presumably incorporating the required size into the equation.

Also don't forget that these ships would need the infrastructure in place, if Canada is operating 5 Kirovboots then they've got the infrastructure to build them and support/maintain them. Its a different canada to what we know.
 
Acadia class Multi-Role Command Cruiser

Operators

- Royal Canadian Navy (2018-present) [5]
- Royal Navy (2018-present) [5]
- Royal Australian Navy (2019-present) [2]
- Indian Navy (2021-present) [4]
- South African Navy (2022-present) [1]
Number Built
17 (5 Royal Canadian Navy, 5 Royal Navy, 4 Indian Navy, 2 Royal Australian Navy, 1 South African Navy)
Builders
- Newfoundland Shipyards, Bonavista, Newfoundland and Labrador, Canada (1x Royal Canadian Navy)
- Canadian Shipbuilding Corporation New Brunswick Shipyards, Shediac, New Brunswick, Canada (1x Royal Canadian Navy, 1x Indian Navy)
- Canadian Shipbuilding Corporation Cape Breton Shipyards, Edwardsville, Nova Scotia, Canada (1x Royal Canadian Navy, 1x South African Navy)
- Versatile Pacific Shipyards, Vancouver, British Columbia, Canada (2x Royal Canadian Navy)
- Harland and Wolff Shipbuilders, Belfast, Northern Ireland, United Kingdom (2x Royal Navy)
- Cammell Laird, Birkenhead, Merseyside, United Kingdom (1x Royal Navy)
- Swan Hunter, Wallsend, Tyne and Wear, United Kingdom (2x Royal Navy)
- Australian Shipbuilding Corporation Eastern Yard, Williamstown, Victoria, Australia (2x Royal Australian Navy)
- Mumbai Naval Dockyards, Mumbai, Maharashtra, India (1x Indian Navy)
- Cochin Shipyards, Kochi, Kerala, India (2x Indian Navy)

Displacement
24,670 tons (full load)
Length
829 ft 8 in (252.88 m)
Beam
92 ft 2 in (28.09 m)
Draft
28 ft 7 in (8.72 m)
Complement
886 (90 officers, 112 senior ratings, 684 men)
Propulsion
- 2 AECL HTNR-01 high-temperature gas-cooled prismatic-block-design nuclear reactors
- 4 L&T Nuclear NES-11 nuclear heat exchangers
- 4 Vektris Engineering MS7A geared steam turbines
- 2 General Motors EMD 24-265J2 auxillary diesel power generators
- 4 Western Electric Model 35NS induction electric motors
- 4 Rolls-Royce Kamewa M4550 waterjets
- Research in Motion ISPP-4A integrated power and propulsion system
Power Output
152.32 MW (204,170 shp) maximum power output, maximum available for propulsion 160,000 shp
Top Speed
35.2 knots (40.5 mph, 65.2 km/h)
Range
Theoretically unlimited, original nuclear fuel core lasts 30 months
Endurance
75 days

Armament
- 2 Mk.184AC Poseidon 16-cell vertical launch systems (32 RGM-186A Algoolik anti-ship missiles)
- 2 Sylver 2A80C Nujalik 64-cell vertical launch systems (128 missiles)
- 1 Sylver 2A70C Tornat 64-cell vertical launch system (64 missiles)
- 4 Sea Ceptor V2A 16-cell vertical launch systems (64 CAMM anti-aircraft missiles)
- 1 VL-ASM2 Makara 16-cell vertical launch system (16 RUM-188A Varuna anti-submarine missiles)
- 4 Mk.64F5 155mm/62-caliber naval guns (two two-gun mounts, 650 rounds per gun)
- 8 Mk.95F2 76mm/62-caliber naval guns (four two-gun mounts, 2200 rounds per gun)
- 8 M2 Browning 12.7mm machine guns (4 twin mounts, 2000 rounds per gun)
- 2 Mark 32 SVTT 12.75" triple torpedo tube sets

Radars and Sensor Systems
- DRDO CANTIS Mark 21AV automatic naval tactical data system, containing:
-- Pacific Alliance PS32 liquid-cooled supercomputer
- Commonwealth Air Defense Systems SV-2A Ataksak Anti-Air Missile System, consisting of:
-- 1 Thales Nederland/Research in Motion APAR-3A 3D active phased array radar
-- 1 Thales Nederland/Research in Motion S1850M long-range air-search radar
-- 1 Raytheon AN/SPS-67(V)11 medium-range surface-search radar
-- 2 Thales Nederland/Vektor Electrotechnic Sirius IRST infrared search and track systems
-- 2 Dalsa Technologies Northlight 2A1 electro-optical surveillance and tracking systems
-- 5 Commodore Defense ADV04 continuous-wave fire control radars
-- 2 Raytheon/Vektor Electrotechnic SPQ-9B gunfire control radars
- 2 Rheinmetall Pathfinder Mark II navigation radars
- 1 DRDO CANTIS Mark 22UW anti-submarine warfare system (Type 2084A variable-depth hull sonar, 1 C1633A4 towed sonar array, 1 C1634A1 area sonar system)
- 1 Ultra Electronics S2170 SSTD torpedo defense system
- 1 Raytheon/Vektor Electrotechnic AN/SLQ-32(V)8 electronic warfare system

Aircraft Carried
3 Canadair VS-145C Poseidon anti-submarine tiltwings
12 Dragonflyer X6A maritime amphibious UAV

Boats Carried
4 SB90N Fast Combat Boats
Looking at this purely from a design perspective, I doubt this all can fit into a package just 830 feet long. Thinking about how all of this could be put together, the ship is going to require centerline space for:
Forward 155mm turret
Forward 8.0m Sylver
Forward AShM VLS
Aft AShM VLS
Forward refueling hatch
Superstructure
Forward mast (with APAR)
Center 8.0m Sylver
ASW VLS
Aft mast (with SMART-L)
Helicopter hangar
Flight deck
Aft refueling hatch
Aft 7.0m Sylver
Aft 155mm turret (might not be possible with aft hull depth)

Of course you can change the order around, but a lot of the specified equipment is going to need to be on the centerline, and this is presuming that the CAMMs and twin 76mm mounts can be squeezed in with parts of the superstructure.

My suggestion is to limit yourself to 2 x 64 cell centerline VLS installations and potentially some peripheral VLS cells or deck launchers for anti-ship and anti-submarine weapons. Aster is a volumetrically inefficient missile simply because of its shape; the Aster 15 requires a full Sylver cell to do what an ESSM can do while quad-packed in a slightly smaller Mk. 41 cell. The giant fins on the booster are necessary because the CG is so far aft that it would flip around in flight if there wasn't enough drag to stop it. If you're using mostly made up weapons, why wouldn't you optimize your missiles' shape for VLS storage?

If you standardized on a 28 inch cell like the Mk 57 VLS, you would be able to fit much larger top-end missiles than the Mk 41 or Sylver and would be able to twin-pack or quad-pack larger missiles than an ESSM. A cell like that would have space for larger ballistic or hypersonic missiles that can't fit in a Mk 41. The Koreans are developing the K-VLS II for exactly that role. You would also be able to quad-pack a missile as large as the 9M96 or potentially even a Standard with folding strakes, so that would quadruple your medium-range air defense capacity while increasing the size of your missile installation by only about 30-40%. You might even be able to quad-pack VL-ASROCs or PAC-3 MSE missiles in a 28+ inch cell, so you get both increased magazine size and the ability to use larger missiles.

To optimize your layout, I would also suggest utilizing a single multi-face AESA radar capable of search, track, and whatever target illumination might be necessary, which would allow you to fit all of your sensors in a single compact superstructure, kind of like the CSGN design. Every APAR/SMART-L installation (De Zeven Provincien, Sachsen, Iver Huitfeldt) and PAAMS installation (Type 45 and Horizon) has the radars set about 200 feet apart, which probably indicates some level of interference. With a hull this wide, your reactor hatches would be good places for deck-mounted CIWS like a Sovraponte, or any kind of deck-mounted missiles like the NSM or Typhon. Just remember that deck-mounted launchers are not typically stealthy.

Strike_Cruiser%2C_17%2C000_ton_design.png


Looking at this CSGN drawing for a basic outline, it has reactor hatches forward of the superstructure and in the hangar. I would have a twin 155 mm mount forward, one 64-cell VLS between the forward turret and the forward reactor hatch, then the superstructure, hangar and helipad with aft reactor hatch somewhere in there, then the aft VLS and an aft turret if your hull is even deep enough to handle it. The 5 inch mount on the aft of a Ticonderoga class cruiser penetrates two decks down, including the magazine, but the AGS mount penetrates two decks and the magazines are farther below that. However, a hull as deep as a Kirov that carries its freeboard all the way aft might have enough space above the rudder and propellors. Depending on the configuration of the superstructure, your CIWS, deck guns, and SHORAD missiles can be mounted around or on parts of the superstructure. The helipad might be a good place for peripheral VLS cells considering the beam of the ship.
 
Okay, looks like I need to explain a few things about my rather large vessel....
Much as I love the idea I see two problems.

1. Getting the Canadian government to ever fund a Defence program of this size. Particularly funding one completely and early enough that it meets other nations defence need before they have done so themselves, thus allowing export orders.
Your point here is entirely correct, but I am creating this as something for the TL series me and a few others have developed over the years. In that world Canada never gave up the "We are NOT getting caught flat-footed again" ethos after World War II, there are quite large domestic defense, shipbuilding and electronics industries and indeed thr Commonwealth is much closer. End result is that these vessels are replacing earlier nuclear-powered air defense cruisers in the Royal Navy and the Royal Canadian Navy as well as the Indian Navy's Kirov-class battlecruisers. In this particular instance, the Indian Navy got in on the joint project late, and while their anti-submarine missile is used for the ship in return the first one of them is built by the Canadians, though the other three are built in India. The South African one is bought because the RSA in this world is much wealthier, has been a key member of the Commonwealth since the late 1980s and wanted an air defense vessel for its own fleet of surface ships.
2. How in blazes did Edwardsville, Shediac, and Bonavista end up with major shipbuilding contracts when both the capacity and , more importantly, the votes exist in HRM, St. John and St. John’s?
Because:

A) At the time Halifax and Saint John were building the fleet's new aircraft carriers and both also had commercial vessel orders to fill as well, and the Great Lakes and Quebec Shipyards didn't have the docks big enough to build vessels that big. The Edwardsville and Shediac facilities are the extra capacity for when shipyards in the aforementioned places don't have the dry dock space.

B) Edwardsville is adjacent to CFB Cape Breton, which is one of three major fleet bases for the RCN on the East Coast. (Halifax is the main one, the third is on the Ile D'Orleans near Quebec City.) This location, in addition to Sydney being a much more substantial port and having a steel mill on the other side of the harbour that specializes in heavy grades of steel, is a major reason why the Edwardsville yard is what it is.

C) While the St. Lawrence Seaway in this world is Panamax-size (and thus one of these could be built there), the Shediac yard outbid the Ontario ones.

D) Newfoundland Shipyards in Bonavista was created in the 1970s as a way of reducing unemployment in Newfoundland as the Cod fishery was wound down (no sudden moratorium that puts tens of thousands of people out of work overnight here), but the yard gained a reputation for building famously-durable vessels, which ultimately meant they began to get work building Navy vessels. Today they are one of the larger employers on the island building, repairing or both pretty much anything that hits the water, from naval vessels to fishing boats, ferries to oil rig components, and Bonavista has become a rather bigger center as a direct result.
At risk of getting into current politics, good luck getting the British Government to fund 5 nuclear powered battlecruisers (or even 5 patrol boats) as well.
True enough IOTL, but this isn't IOTL as explained above. 😉 The United Kingdom here benefitted enormously from being on the winning side of WWII and being able to recognize the changing relationship between its dominions and former colonies and the UK. It's a long story but the short synopsis is that the Commonwealth is a way bigger and more influential organization than OTL, and Britain avoided most of the worst defense, aerospace and industrial mistakes they made IOTL. TTL's 2024 United Kingdom is the trading hub of Europe and an industrial powerhouse in a whole bunch of fields. Hong Kong, Socotra (where evacuees from Aden went to en masse when violence gripped the area in the late 1950s), Malta and Bermuda are self-governing parts of the UK, and between these far off places and the other territories of theirs in other parts of the world and their Commonwealth commitments means the Royal Navy and Royal Air Force have much, much bigger commitments than OTL, but far more funds to do it with and a history of support from the Commonwealth and it's allies.

End result is that TTL's Royal Navy is a powerhouse. The fleet is centered around three aircraft carriers and two amphibious groups (hence five of these battlecruisers), and their surface fleet is substantial as well. The Acadias (Type 84 Cruiser to the Royal Navy) are meant to be paired with a carrier and with a Type 45 destroyer as a wingman, providing probably the best air defense coverage on Earth to the fleet.
Ignorant question: does Canada have the dock to build a ship that big?
They do in multiple places IOTL, here even more so than that.
I'd assume that to get these built you'd need a vastly different Commonwealth etc.
See above. 🙂
 
Looking at this purely from a design perspective, I doubt this all can fit into a package just 830 feet long. Thinking about how all of this could be put together, the ship is going to require centerline space for:
Forward 155mm turret
Forward 8.0m Sylver
Forward AShM VLS
Aft AShM VLS
Forward refueling hatch
Superstructure
Forward mast (with APAR)
Center 8.0m Sylver
ASW VLS
Aft mast (with SMART-L)
Helicopter hangar
Flight deck
Aft refueling hatch
Aft 7.0m Sylver
Aft 155mm turret (might not be possible with aft hull depth)
Few comments here:

My plan was that the two 16-cell AShMs go side by side up front, forming one 32-cell system. It's right at the front, with the two 8.0 Sylvers right behind it and the forward 155mm mount right at the front. Of course, this results in a long bow, but that's hard to avoid here. Two of the 76mm mounts (one on each side) sit on either side of the forward 8.0 Sylver, sitting inside of a section sticking out from the forward superstructure.

The forward superstructure (with APAR) is next. Behind that is the 7.0 Sylver and then the ship's boats (which are built over top of the reactor hatches - the reactors are side-by-side on this vessel) and then the UAV section of the rear superstructure, which have two V2A Sea Ceptors on each side of it. (At the front of this section is the catapults for the UAVs and cranes to recover them off of the water, both of which retract to get out of the way of the Sea Ceptors), then the actual hangar for the helicopters and its
control tower, which has the S1850M above it and the SPS-67 forward of that. The after 76mm mounts on either side of the landing pad, the tops of the guns basically flush with the landing platform so the helos don't run into anything, and it means the APAR and S1850M are quite far apart. At the rear is the Makara ASW missile launcher and the rear 155mm mount.
My suggestion is to limit yourself to 2 x 64 cell centerline VLS installations and potentially some peripheral VLS cells or deck launchers for anti-ship and anti-submarine weapons.
Aster is a volumetrically inefficient missile simply because of its shape; the Aster 15 requires a full Sylver cell to do what an ESSM can do while quad-packed in a slightly smaller Mk. 41 cell. The giant fins on the booster are necessary because the CG is so far aft that it would flip around in flight if there wasn't enough drag to stop it. If you're using mostly made up weapons, why wouldn't you optimize your missiles' shape for VLS storage?

If you standardized on a 28 inch cell like the Mk 57 VLS, you would be able to fit much larger top-end missiles than the Mk 41 or Sylver and would be able to twin-pack or quad-pack larger missiles than an ESSM. A cell like that would have space for larger ballistic or hypersonic missiles that can't fit in a Mk 41. The Koreans are developing the K-VLS II for exactly that role. You would also be able to quad-pack a missile as large as the 9M96 or potentially even a Standard with folding strakes, so that would quadruple your medium-range air defense capacity while increasing the size of your missile installation by only about 30-40%. You might even be able to quad-pack VL-ASROCs or PAC-3 MSE missiles in a 28+ inch cell, so you get both increased magazine size and the ability to use larger missiles.
Points taken, but the reason I didn't do that is because of the design needs. Both Australia and Canada wanted standoff range anti-ship missiles that weren't likely to fit in a standard VLS and India really wanted to use its own anti-submarine missile, which thankfully uses a 2x8 VLS here and as such doesn't take up too much room.

The Sylver 2 here is indeed like the Mark 57, because here the British realized the issues with the Aster missile's CG and thus its fin size and wanted something more space efficient. The Makara ASW missile is too big for a 28" cell and the Algoolik is rather bigger than that, so they need to have their own launchers, and the CAMMs are on the sides specifically because A) that can work and they are small enough that thus doesn't cause topside weight issues) and B) this gives more room for larger, longer-ranged missiles in the main launchers. Since these are basically the commander center for the fleet's air defenses, there's no point in going small on the missile capacity, and steel is cheap so if the hull has to grow it will.

Big thanks for the design, though. I do appreciate the effort. 🙂
 
My plan was that the two 16-cell AShMs go side by side up front, forming one 32-cell system. It's right at the front, with the two 8.0 Sylvers right behind it and the forward 155mm mount right at the front. Of course, this results in a long bow, but that's hard to avoid here. Two of the 76mm mounts (one on each side) sit on either side of the forward 8.0 Sylver, sitting inside of a section sticking out from the forward superstructure.
This makes it sound a lot like you just shuffled around parts on Kirov, with the forward 155mm mount replacing the Silex launcher, and then swapping the Shipwreck and Grumble launchers around. The 76mm mounts could then be sitting on the small deckhouses that carried 4 x AK-630 mounts on Kirov and two Kashtan mounts on Kalinin.
The forward superstructure (with APAR) is next. Behind that is the 7.0 Sylver and then the ship's boats (which are built over top of the reactor hatches - the reactors are side-by-side on this vessel) and then the UAV section of the rear superstructure, which have two V2A Sea Ceptors on each side of it. (At the front of this section is the catapults for the UAVs and cranes to recover them off of the water, both of which retract to get out of the way of the Sea Ceptors), then the actual hangar for the helicopters and its
control tower, which has the S1850M above it and the SPS-67 forward of that. The after 76mm mounts on either side of the landing pad, the tops of the guns basically flush with the landing platform so the helos don't run into anything, and it means the APAR and S1850M are quite far apart. At the rear is the Makara ASW missile launcher and the rear 155mm mount.
The Russians went with side-by-side reactors on the Kirovs, but every American ship with two reactors has used a fore-and-aft layout. That could be a matter of design preference or practice, but the American ships, unlike the Kirovs, did not have an auxiliary propulsion system that operated independently of the reactors. With this superstructure design, you are now stuffing boats, a 64-cell VLS, and UAV launch and recovery gear between the pilothouse and the helicopter facilities. Also, this VLS is going to have to be very high in the superstructure, practically on deck, to stay above the plant below it. You can see how high in the ship Iver Huitfeldt's Mk 41 is, and this is going to be a substantially larger installation.
The Sylver 2 here is indeed like the Mark 57, because here the British realized the issues with the Aster missile's CG and thus its fin size and wanted something more space efficient. The Makara ASW missile is too big for a 28" cell and the Algoolik is rather bigger than that, so they need to have their own launchers, and the CAMMs are on the sides specifically because A) that can work and they are small enough that thus doesn't cause topside weight issues) and B) this gives more room for larger, longer-ranged missiles in the main launchers. Since these are basically the commander center for the fleet's air defenses, there's no point in going small on the missile capacity, and steel is cheap so if the hull has to grow it will.
1. If they know about the issues with Aster, what is the solution and how is going to a larger VLS cell profile involved?
2. If this "Makara ASW" weapon is too big to fit in even a 28" VLS cell, what advantages does it have over something as small as a VL-ASROC? If it's an anti-submarine cruise missile like the Silex, you already have ASW helicopters already on the ship, and the Silex is far too large for the capability it provides.
3. The Shipwreck was 33 inches in diameter (not counting fins), 10 meters long, and weighed 7 tons. The Soviets required very large launcher installations on the Kirovs and the Oscars, but the missile itself could almost fit in the Chinese GJB 5860-2006 VLS cells on a Renhai-class cruiser. The Soviets needed a missile this big because they thought that a salvo of 20 or 24 missiles might only be sufficient to get 1 missile through a CVBG's defenses, so that one missile would need a big enough warhead, 750 kg in this case, to disable the carrier. Even if you intend to be shooting at something as well defended as an American aircraft carrier and its Aegis-equipped escorts, you would probably be better off increasing your magazine and salvo size and improving hit probability with smaller and stealthier missiles, because the vast majority of modern warships won't stick around after a hit from a missile even a third that size.
4. Merchant hulls might be cheap, but actual warship hulls are not, much less nuclear-powered warship hulls, and the combat systems you stuff in those hulls certainly are not cheap. While surface combatants have gotten larger over the years, they have also gained much larger missile armaments. The Type 42s carried 22 Sea Darts while the Type 45s carry 48 Asters and are getting space for 24 CAMMs. The Burke-class destroyers, with 96 VLS cells, initially replaced Farragut and Adams class destroyers that carried fewer than 40 SM-1s. People say that steel is cheap and air is free, but that only applies if you are willing to constrain your combat systems installation. Proper application of that principle results in designs that look like the Maya and Sejong the Great, which fit Burke combat systems in a slightly larger and less cramped hull. Go too far to either side and you end up with overloaded ships in the Russian style or underarmed ships like the Spruance class or F125s that are derided, quite rightly, for not being competitive warships.
Big thanks for the design, though. I do appreciate the effort. 🙂
You've been sharing your overloaded creations here for the last eight years, and I've been here to bring you down to Earth for the last eight years. This hull isn't as overloaded as the Fraser-class was, but the layout is significantly more awkward. Personally, I think you're putting too many million-dollar eggs in one nuclear-powered basket. This ship is going to cost about $6 billion to build, and then another $1 billion to load with missiles, and it can only be in one place at one time. I would much rather see three or four reasonable multi-role combatants - depending on how expensive tonnage and combat systems are for you, they could be anywhere between a Horizon/Type 45 or a Maya/Sejong the Great. You could get the same level of anti-air capability with the APAR/SMART-L combination while also providing multiple hulls to either sustain full-time deployments or cover more space at the same time. Four ships could each get a 155mm gun, 64 VLS cells, and a CAMM battery and provide the same amount of firepower as the large cruiser with roughly the same cost and manning requirements. You will have to pay for four sets of sensors, but that means also you have significantly more ability to sustain sensors on station or to cover sea space with your sensors compared to a single ship. Single-role surface combatants are on the way out in large part because of the versatility of VLS, which allows you to easily swap between land attack, air defense, anti-submarine, and anti-ship loadouts, but using VLS types dedicated to single missiles defeats the purpose while needlessly complicating logistics and tactics.
 
[Psychiatrist] The Stretched LCS isn't real, the stretched LCS can't hurt you.
The Stretched LCS
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It was one of the competitors in the FFG(X) program.


 
Pelican Class (1976) Destroyer (Grands Contre-Torpilleur)

Operator: Royal Canadian Navy "La Royal"

Number built: 12

Builders: Cadillac Arsenal-Detroit, Cull-de-Sac Arsenal-Quebec, Badeau et cie.-Sorel, Huronia Arsenal-St. Charles, Mississauga Marine-Rouillé

Displacement: 12,684 tonnes (full load)

Length: 177.5m
Beam: 21m
Draft: 7.35m
Complement: 560
Propulsion: COGOG system powering 4 shafts
Power Output: 85.2 MW
Top Speed: 31.5 knots
Range: 4,500NMi

Armament:
Canon de 203mm x1
Canon de 57mm x2
Organ 20mm CIWS x2
13.2mm machine guns x6
multi-missile arm x2 (capable of equiping a range of anti-ship, anti-surface, anti-submarine, and medium range anti-air missile)
quad-rail short range air defence missile launchers x3
triple 305mm torpedo tube x2

Radars and Sensor Systems
[I am too lazy to imagine the electronics industry of a surviving New France]

Aircraft Carried
"Ange" utility/ASW helicopters x3

The Pelicans were initially concieved as a thought experiment for a class of ships designed with the limits imposed by the locks of the Louisiana Seaway as their only constraints. The rapid expansion of the Continental Union's SSN fleet in the first half of the 1970s however made the requirement for a "maximum combatant" that could transit between Canada's Caribean and Atlantic Coasts entirely via internal waterways into a reality. The reach of the 8" gun made them a useful enforcer of the Bourbon system in the Americas.
 
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The Sagami class battleships were a result of a lengthy design process carried out in parallel with the building of the Kongo class battlecruisers. For the battleships of the 6:6 Program, Vickers had offered designs with 16” guns and speed of 25 knots in 1913 although neither the guns nor a battleship this fast yet existed.

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Sagami in March 1918.

Initial plans included the need to be superior to USN New York design and options explored included upto 12 14” guns in 6 twin turrets. Most European powers only had token forces in the Pacific, even the Royal Navy had pulled back. It was reasoned that other nations could only spare older ships to the Far East. The USN only deployed armoured cruisers on the West Coast and so the threat to Japan of enemy 1st line battleships was reduced. The battleship designs were put on hold while the decision was to focus on the Kongo class building program of six units and then an additional two after the first pair were sold to GB at the start of the war.

Once the battleship program was stepped up, the benchmark had moved to a design that had to be superior to the latest US ships in the Nevada and Pennsylvania and other Super Dreadnoughts in Europe. Learning through secret contacts of the Royal Navy's development of 15" guns and anticipating larger guns than the USN 14”, the IJN selected a 15” ten gun layout as the best balance on about 32,000tons displacement. This had superior weight of broadside to 12x14” guns and each shell had greater penetration. Authorisation for a class of 6 ships was passed in 1913. There was need for greater speed as the Russian Borodino class Battlecruisers were to carry 12 14" guns and as such they outclassed the Kongos.

The first ship, Sagami, was laid down in 1914 while the second ship Suwo, was delayed into 1915 due to the replacement Kongo ships being built at the Kawasaki and Mitsubishi yards. This pushed the second pair, Iwami and Suruga into early 1917.

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Suruga in 1920

The 1916 USN Program added an additional 2 ships to the 6 authorised to meet the 8:8 standard and the final four ships were laid down in 1917-18 (Tosa and Omi) at Yokosuka and Kure Arsenals and the final pair (Nagato and Hizen) at the private Kawasaki and Mitsubishi Yards, where they were completed in late 1921.

Going into the Washington Naval Disarmament negotiations, the IJN has 8 BC and 8 BB as per it's 8:8 program. The original 1st 6:6 fleet battleships (6 pre-Dreadnoughts) and the battleships (2 Katori, 2 Satsuma, 2 Kawachi) from the 2nd 6:6 Fleet Plan were listed for disposal while the newer Armoured Cruisers (4 Tsukuba and 2 Shirane) were retained against the USN retention of it's remaining AC. Against the IJN 16 Capital ships, the USN and RN retained 20 each in a 5:5:4 ratio (Japan having 80% tonnage). The USN completed 4 Colorado class while the RN was permitted to construct 4 new capital ships of no more than 35,000tons standard displacement.

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Iwami in 1926

POD: Minelayer Amur is sunk in an accident at Port Arthur.
The IJN doesn't lose Hatsuse and Yashima to mines and these ships make a decisive contribution to the Battle of the Yellow Sea where the majority of the Russian Pacific Fleet is sunk in action. This speeds up the fall of Port Arthur and the subsequent land campaign. The destruction of the Russian Baltic Fleet (2nd Pacific Fleet) occurs further north of Tsushima, the Battle of Takeshima. The war ends with the Japanese holding Kamchatka, Sakhalin and Vladivostok under siege. Japan doesn't receive an indemnity in the Peace settlement but the Russians transfer their rights to the Boxer indemnity to Japan.
Japan doesn't waste money on Russian prizes and different officers push development in a slightly different direction. The Gonnohyoe government doesn't fall with the Vickers Scandal and continues for most of the war years with a minimal SIberian intervention and a commitment to the 8:8 Fleet by 1921.

The IJN's Second 6:6 Fleet Program was initiated before the Russo-Japanese war. Battleships Katori and Kashima were ordered in the UK and efforts to buy 2 Chilean Battleships and 2 Argentine Cruisers were only partially successful in only adding the cruisers to the fleet on the eve of the war. The remaining 4 Battleships and 4 Armoured Cruisers were to be built in Japan.

Experience in the RJ war had shown that a larger uniform armament was required for battleships and initially the Armoured Cruisers were to also carry 12" main armament. Concerns that there were not enough 12” weapons available was satisfied by the expedient of arming the the cruisers with the intermediate battery of 10" guns leaving the 12" free for the battleships.

The Armoured cruisers were to make use of domestically produced armour of up to 7” in thickness. To outgun all existing AC, the Tsukuba had 6 10” guns in 3 turrets and the opportunity to test super firing guns was also incorporated into the design. These ships were also testbeds for the revolution in propulsion with alternatives between turbine and reciprocating engines and improvements in boilers. Originally 4 ships were ordered: Tsukuba, Ikoma, Haruna and Ibuki, but the loss of Kasuga and Nissin in action during the war meant that 2 additional ships were built to an improved design. Shirane and Hiei had increased speed and 2 additional single 10" in wing positions but it was clear that these Armoured Cruisers were obsolete against the newer Battlecruisers being built by the RN and German Navy.


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Armoured Cruiser Ikoma in 1909.

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Armoured Cruiser Shirane in 1913.

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The eight Kongo class battleships transitioning from line abreast to line ahead prior to commencing gunnery practice in the late 1930s.
Aso in the van leads Amagi, Atago, Kirishima, Katsuragi, Kurama, Akagi and Kongo in the rear.


Initially part of the IJN's Third 6:6 Fleet Program, Kongo was ordered from Vickers as the lead ship of a class of 6 battlecruisers with the other 5 to be built in Japan. At the outbreak of the war in 1914, the two lead ships were sold to GB and commissioned as HMS Unicorn and HMS Dragon in patriotic honor of Scotland and Wales just as other ships were being named for Canada and Ireland. The four remaining ships Katsuragi, Kirishima and Aso completed in 1915 with Akagi following in 1916. With the funds from the GB acquisition, the IJN ordered two new ships; Amagi and Atago as replacements. A secret clause in the sale to GB meant that Kongo (HMS Unicorn) and Kurama (HMS Dragon) could be repurchased at the end of the conflict. This was legislated by the Diet with the upgrading of the 6:6 Fleet Program to the 8:8 Fleet Program in response to the US 1916 Program. The follow on ships from the the Kongos, the Sagami class battleships with 10 15" guns were complete by 1921.

With the repurchase of Kongo and Kurama in 1919, the naval budget was put under strain. After study of the Royal Navy's Light Battlecruisers Furious, Courageous and Glorious and the need to counter the high speed of the USN Lexington class, the IJN developed an affordable light battlecruiser of 12,500tons and armed with only 4 12" guns in single mounts and capable of 35 knots. These ships were laid down in 1920 and 1921 but only Myoko and Nachi were complete as gunships, Aoba and Chokai, renamed Shokaku and Ryukaku before their launch and were completed as carriers under the provisions of the Washington Naval Treaty.


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Nachi in the late 1920s.
 
I'm not sure Japan had the industrial capacity and/or cash to build those extra ships even sans being in Siberia or the POD in the Russo Japanese war
Remember the Kongo historically

1 built in Britain
1 built in Japan with a lot of subcontracting to Britain
1 built in Japan with a little subcontracting to Britain
1 built purely in Japan

If going to 8 how much are they ordering from Britian?
 
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