The Crowned Republic of Atlantia

Well, after seeing my Aegir drawing I thought how inferior the corresponding Gemstone drawing was considering that they meant to be related designs. Ergo I went about redrawing the class again. Specifications and the sub variants will follow tomorrow but this is being put up in case there are any glaring deficiencies visible. Also of note after recalibrating my monitor properly I wasn't happy with my choice of colours either for vessels... So those have and/or will change too. I abandoned the azipods on these at least (the cruisers which are also being redrawn will retain theirs) and opted for the contra-rotating set-up favoured on the Aegirs. Forward launcher contains 64 cells, launchers flanking the sensor tower contain 32 cells between them and the aft most launchers embedded into the helicopter deck contain 16 between them. All except the aft most launchers are the longer varieties of the AVLS the aft most being reserved for PDMs being the shortest AVLS. The domed array on the main mast may stay or go depending on what I can come up with otherwise.

[img]http://i.imgur.com/9FpMo.png[img] <<depreciated

~Regards, Mark.

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AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

As promised, the breakdown of the Gemstone class. They form the mainstay of the surface combatants in A-NAVFOR. There are 26 of them in total split into four "groups". Completed between 2006 and 2012 the class is now complete with all except Aragonite which is on sea trials in service.

Gemstone Class Guided Missile Destroyer

Common features and statistics:
Length Oa.: 170.9m
Beam: 20m
Draught: 6.4m
Displacement Standard: ~8,250tonnes (8,500 for group 3)
Displacement at full load: ~10,250tonnes (10,500 for group 3)
Propulsion: COGES with auxiliary fuel cells

2x Rolls Royce Marine Trent MT50 gas turbines with two 7MW Siemens Westinghouse exhaust steam turbines for a total of 114MW of available power
2x 100kW Siemens-Hitachi fuel cells

Range: 11,000km @ 17knots - 6,000km @ 30knots
Endurance: 120 days
Crew complement: 250 plus 20 air crew and berthing for 30 more
Speed: 33knots max. 20knots cruise

Sensors:
Watchman A MFR (Sampson equivalent)
Gatekeeper 200 surface search radar
Skyguard A 3D air-search radar (S1850M / Smart-L equivalent)
Argus 100 electro-optical targeting gimbal
Neptune A multi function sonar
Seamaster 60 nav-radar

Electronic Warfare:
Caerus B multi-spectrum jammer
AAE 'HArK' hard kill countermeasure dispensers
Blizzard A en-masse chaff dispensers
Blizzard B en-masse flare dispensers
Blizzard C acoustic decoy launchers
Medusa A IR/Laser jammers
Cricket A IFF interrogators

Communications:
Multi-band VHF/UHF
Ku band SATCOM
IDCS network a-la Link 16

Aircraft:
2x AB.212 or AW70 helicopters on all groups. Group 3 vessels also embark a Mosquito UAV. The class are also cleared to operate commando force helicopters when necessary, the group 3 vessels being able to take an S80 on the heli-pad too.

Boats:
4x 7m RHIBs for general use amidships
2x 10m Assault RHIBs for embarked troops when necessary
1x Towed VDS taking up space occupied by the rear gun on group 3 vessels.

Group 1 and Group 4:
[ img ]

The group 1 and 4 vessels are primarily intended for AAW
Armament:
2x 76mm/62 multi-purpose guns [HE-PD, HE-VT, HEI-MT, HEAB, Vulcano + Illum-MT]
1x 64 cell AVLS [8x Kingfisher III AShMs, 16x Armaros B, 16x Armaros L and 24 Armaros M]
2x 16 cell AVLS [24x Armaros PD-I, 24x Armaros PD-R and 16x Armaros M]
2x 8 cell AVLS [24x Armaros PD-I and 24x Armaros PD-R]
3x 40mm/70 twin multi-purpose guns [HE-PD, HEAB/3P]
2x 12.7mm Gatling guns
1x 18 cell CISAM launcher

Group 2:
[ img ]

The group 2 vessels are primarily used in the ASuW and land attack role
Armament:
2x 127mm/64 multi-purpose guns [HE-PD, HE-VT, HEI-MT, HEAB, Vulcano + Illum-MT]
1x 64 cell AVLS [16x Gannet ASMs, 16x Kingfisher III AShMs, 8x Armaros L and 24 Armaros M]
2x 16 cell AVLS [16x LRSM-A and 16 LRSM-C land attack missiles]
2x 8 cell AVLS [24x Armaros PD-I and 24x Armaros PD-R]
2x 27mm/52 twin mount CIWS [HE-PD, HEAB/AHEAD]
2x 12.7mm Gatling guns
2x 18 cell CISAM launchers

Group 3:
[ img ]

The group 3 vessels are primarily tasked with ASW with a secondary ASuW role and as such have a revised above water hull.
Armament:
1x 127mm/64 multi-purpose gun [HE-PD, HE-VT, HEI-MT, HEAB, Vulcano + Illum-MT]
1x 64 cell AVLS [8x Kingfisher III AShMs, 8x Armaros L and 48 Armaros M]
2x 16 cell AVLS [8x Kingfisher III AShMs, 16x Sea Eagle IB AShMs and 8x Sea Eagle ID ASROCs]
2x 8 cell AVLS [24x Armaros PD-I and 24x Armaros PD-R]
2x 27mm/52-CISAM hybrid launchers[HE-PD, HEAB/AHEAD]
2x 12.7mm Gatling guns

--------------------------------------------------------

Mountain Class Light Guided Missile Cruisers

Common features and statistics:
Length Oa.: 170.9m
Beam: 20m
Draught: 6.4m
Displacement Standard: ~8,250tonnes (8,500 for group 3)
Displacement at full load: ~10,250tonnes (10,500 for group 3)
Propulsion: COGES with auxiliary fuel cells

2x Rolls Royce Marine Trent MT60 gas turbines with two 7MW Siemens Westinghouse exhaust steam turbines for a total of 134MW of available power
2x 100kW Siemens-Hitachi fuel cells

Range: ~11,000km @ 20knots - ~7,000km @ 30knots
Endurance: 120 days
Crew complement: 280 plus 20 air crew and berthing for 30 more
Speed: 35knots max. 20knots cruise

Sensors:
Watchman A MFR (Sampson equivalent)
Gatekeeper 200 surface search radar
Skyguard A 3D air-search radar (S1850M / Smart-L equivalent)
Argus 100 electro-optical targeting gimbal
Neptune A multi function sonar
Seamaster 60 nav-radar

Electronic Warfare:
Caerus B multi-spectrum jammer
AAE 'HArK' hard kill countermeasure dispensers
Blizzard A en-masse chaff dispensers
Blizzard B en-masse flare dispensers
Blizzard C acoustic decoy launchers
Medusa A IR/Laser jammers
Cricket A IFF interrogators

Communications:
Multi-band VHF/UHF
Ku band SATCOM
IDCS network a-la Link 16

Aircraft:
2x AB.212 or AW70 helicopters on both groups. Both groups can also embark Mosquito UAVs. The class are also cleared to operate commando force helicopters when necessary except S80s.

Boats:
4x (2 on Group 2) 8m RHIBs for general use amidships
2x 10m Assault RHIBs for embarked troops when necessary

Group 1:
[ img ]

The group 1 vessels are multi-role vessels used as lead ships of non carrier task forces
Armament:
1x 127mm/64 multi-purpose gun [HE-PD, HE-VT, HEI-MT, HEAB, Vulcano + Illum-MT]
4x 40mm/70 twin multi-purpose guns [HE-PD, HEAB/3P]
1x 64 cell AVLS [10x Armaros B, 40x Armaros L and 28x Armaros M]
2x 16 cell AVLS [24x LRSM-A SuLCMs and 8x Kingfisher Mk.III AShMs]
2x 16 cell AVLS [32x Armaros M, 24x Armaros PD-I and 24x Armaros PD-R]
2x 8 cell AVLS [24x Armaros PD-I and 24x Armaros PD-R]
1x 18 cell CISAM launcher
2x 12.7mm Gatling guns

Group 2:
[ img ]

The group 2 vessels are tasked with AAW as their main role as is reflected by their systems fit...
Armament:
Fitted for but not currently with a gun ahead of the VLS, they will either get a 127mm/64 to increase their ASuW / NGFS capacity or less likely a 155mm/62 either way they're not planned to be retrofitted until 2014.
4x 76mm/62 multi-purpose guns [HE-PD, HE-VT, HEI-MT, HEAB, Vulcano + Illum-MT]
1x 64 cell AVLS [20x Armaros B, 30x Armaros L and 28x Armaros M]
4x 8 cell AVLS [32x Armaros M, 24x Armaros PD-I and 24x Armaros PD-R]
2x 16 cell AVLS [8x Kingfisher Mk.III AShMs and 8x LRSM-A SuLCMs]
2x 8 cell AVLS [24x Armaros PD-I and 24x Armaros PD-R]
2x 12.7mm Gatling guns

_________________
AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

Sparrow Class Fast Patrol Boat

Length Oa.: 91.74m
Beam: 26m
Draught: 6.85m
Displacement Standard: ~1,900tones?
Displacement at full load: ~2,300tonnes?
Propulsion: IFEP via two 25MW gas turbines and two 7MW diesels
Range: 7,000km @ 17knots - ~1,750km @ 40knots
Endurance: 60days
Crew complement:30 +10 aircrew with berthing for a further 16 in the mission bay
Speed: 45knots max. 25knots cruise

Sensors:
Watchman D 3D search radar
Gatekeeper 200 surface search radar
Argus 90 laser/eo targeting gimbals fore and aft
Neptune S multi function sonar
Seamaster 60 nav-radar

Electronic Warfare:
Caerus S multi-spectrum jammer / dispenser
Blizzard B en-masse flare dispensers
Blizzard C acoustic decoy launchers
Medusa A IR/Laser jammers
Cricket A IFF interrogators

Communications:
Multi-band VHF/UHF
Ku band SATCOM
IDCS network a-la Link 16

Aircraft:
1x AB.212 or AW70 helicopter or two Mosquito UAVs

Boats:
2x 8m RHIBs for general use amidships
1x 10m Assault RHIB for embarked troops when necessary
1x Towed VDS

[ img ]

The class as a whole is intended to guard the coastal waters of Atlantia freeing up vessels like the Gemstone and Metallurgical classes. They are multi-role vessels capable of engaging in various modes of warfare but not really specializing in any particular one.
Armament:
2x 35mm/110 twin mounts with Oerikon pattern revolver cannons [HE-PD, HEAB/AHEAD]
2x 8 cell extended length AVLS [8-12x Sea Eagle Mk.IA AShMs and 4-8 Sea Eagle Mk.ID ASROCs]
1x 8 cell SD length AVLS [12x Armaros PD-I and 12x Armaros PD-R SAMs]
2x 7.62mm Gatling guns with ancillary 70mm CRV-7PG tubes

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AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

Updated Gemstone images and added the Mountain class CGLs to the Gemstone post.

ETA: Also added a redux of the Sparrow FAC/OPV things. SWATH concept similar to sebu's SWATH corvette posted a while back...

_________________
AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

I figure I might as well "export" some of my designs if anyone wishes to use either them or the Aegirs posted in my other thread for their AU I'm all for it so long as they don't get kitbashed into something terrible...

Next design to get a revamp will be the Metallurgy class of frigates, watch this space.

ETA: What do people think about the idea of Voith Schneider props on a frigate? Granted they wouldn't be fast but from an acoustics point of view for ASW work?

~Mark.

_________________
AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

great ships blackbuck!

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Verusea Alternative Universe is starting to build up.

Thanks for the kind words.

First WIP of the revamped Metallurgy frigates.
[ img ]

Not sure about the props as noted above, whether they're more of a hindrance than a benefit compared to normal screws.
B1s are ASW orientated and B2s are the GP vessels, long way yet to go but some feedback on the general layout would be nice...

~Mark.

_________________
AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

there are some minesweepers, tugs and patrol craft with VSP. I have never seen them as main propulsion on an ship this big though, but they sure are silent. I would say it is worth the research if it is doable and what speed is possible.

_________________
Drawings are credited with J.Scholtens
I ask of you to prove me wrong. Not say I am wrong, but prove it, because then I will have learned something new.
Shipbucket Wiki admin

Sorry if i'm beeing dumb but how it works your props?because they are a little strange and i never seen like.

_________________
Verusea Alternative Universe is starting to build up.

_________________
Drawings are credited with J.Scholtens
I ask of you to prove me wrong. Not say I am wrong, but prove it, because then I will have learned something new.
Shipbucket Wiki admin

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