Objective Global Warship

My good friend Rob (some of you may know him as Sea Skimmer) has been kicking around a few idea with me for a good long time. These tend to be a little bit out there, in the "Victory is Win! Budgets are Death!" sense. They tend to be tangentially related to real concepts, as truth is regularly stranger than fiction.

One of the most persistent concepts is an outrageous outgrowth of something called SABMIS, or Sea-based Anti-Ballistic MIssile System. Quoting the indispensable Mr. Crierie:

Alternate Wars wrote:

Back in the 1960s and 1970s, the Navy quietly conducted studies of their own Sea Based ABM system (as in $3 million spent on studies; vs $4 billion on Nike-X); and proposed a purpose built, nuclear powered warship, of which an artist’s concept is below.

[ img ]

The SABMIS concept would have mounted the missile detection/tracking radars, fire control/guidance radars and ABM launchers on a single hull 700 feet long and displacing 20,000 to 30,000 tons full load. Propulsion was to be with two nuclear reactors driving two shafts.

Planned loadout was to be 40 to 60 ABM missiles in a centrally located silo farm; backed up by four Sea Sparrow launchers for point defense.

Like now, the Navy touted the mobility of SABMIS as well as it’s cost — claiming that a force of several SABMIS ships; even with nuclear powered escort ships, would cost considerably less than SAFEGUARD.

Surely, we can do better. The natural ultimate conclusion would be a ship mounting radars in the PAVE PAWS class. However, SABMIS would not have been a terribly useful warship outside of this confined role, and PAVE PAWS is huge, so a truly useful multi-purpose warship with such radars would naturally hold just about whatever else one might want. One might consider it the natural jumping-off point for what we have termed the 'Objective Global Warship'.

This, itself, is influenced by Rob's current AU work, which I won't attempt to explain greatly, but a little background helps. Orkfic is a universe of, essentially, large naturally-occurring (or naturally-facilitated) wormhole-like portals between habitable worlds. The mechanism behind such, well, shrug. But there are lots of uninhabited planets out there with no intelligent life and a pile of natural resources. There are several others with aforementioned resources and some equally expansionist sapient beings. And due to (bla bla magic) influence, there be dragons out there.

Anyway, consider as the objective a warship that, itself, can dominate the local gravity well of an Earth-like world. That's what brings us to OGW.

It is important to note that the following is pretty freaking out there. However, it is my judgment as a (non-naval!!!) engineer that sufficient application of money could make anything below happen, given a few years (or a decade...) of R&D. I'm least sure about the lasers. The big question mark is the gas-core NTRs for Space Marines, but lesser rockets would work (merely reducing the number of Marines carried). Structural concerns are also, well, concerning. We've gone far far far beyond any hope of Springsharp doing a good job of extrapolating structural requirements; however, there aren't a lot of kilometer-wavelength tsunamis out there. We have a great deal of safety margin, at any rate, if you trust Springsharp. Which, again, I don't, but there you go. We don't have colossal huge open spaces like Jahre Viking, and that held together.

Comparison with Saturn V, Kirov, Yamato, Ticonderoga, Long Beach
[ img ]

Top view (incomplete)
Missiles and small craft sheet
OGW parts sheet

Quasi-hacked Springsharp output:
Displacement:
720,006 t light; 803,166 t standard; 858,115 t normal; 902,074 t full load

Dimensions: overall/waterline
2,468.00 ft / 2,351.00 ft
456 ft / 280.00 ft
73.00 ft (normal load)

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 2,000.00 ft / 609.60 m 75.00 ft / 22.86 m
Ends: 12.0" / 305 mm 351.00 ft / 106.98 m 75.00 ft / 22.86 m
Upper: 12.0" / 305 mm 750.00 ft / 228.60 m 40.00 ft / 12.19 m
Main Belt covers 131 % of normal length
To reiterate, just for everyone skimming this post: Main (12") Belt covers 131 % of normal length

- Torpedo Bulkhead:
10.0" / 254 mm 2,000.00 ft / 609.60 m 65.00 ft / 19.81 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 30.0" / 762 mm 30.0" / 762 mm 30.0" / 762 mm
2nd: 15.0" / 381 mm 15.0" / 381 mm 15.0" / 381 mm
3rd: 8.00" / 203 mm 8.00" / 203 mm 8.00" / 203 mm
4th: 4.00" / 102 mm 4.00" / 102 mm 4.00" / 102 mm
5th: 4.00" / 102 mm 4.00" / 102 mm 4.00" / 102 mm

- Armour deck: 11.00" / 279 mm, Conning tower: 25.00" / 635 mm

Machinery:
Two 450MW-class nuclear reactors
Two submarine-derived backup reactors (hotel load, backup power), approx. 20MW each
16 T406 SSTG (hotel, backup) approx 4.5MW each
Integrated electric propulsion
Electric motors, 6 shafts, 952,654 shp / 710,680 Kw = 32.50 kts
10 4000shp-class deployable azimuthal thrusters
7 4000shp-class shuttered bow and stern thrusters
Bunker at max displacement = 98,908 tons

Distribution of weights at normal displacement:
Armament: 9,342 tons, 1.1 %
Armour: 277,232 tons, 32.3 %
- Belts: 102,720 tons, 12.0 %
- Torpedo bulkhead: 48,100 tons, 5.6 %
- Armament: 16,978 tons, 2.0 %
- Armour Deck: 104,571 tons, 12.2 %
- Conning Tower: 4,864 tons, 0.6 %
Machinery: 22,791 tons, 2.7 %
Hull, fittings & equipment: 365,641 tons, 42.6 %
Fuel, ammunition & stores: 138,109 tons, 16.1 %
Miscellaneous weights: 45,000 tons, 5.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,282,712 lbs / 1,489,013 Kg = 474.9 x 24.0 " / 610 mm shells or 2,716.4 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 38.7 ft / 11.8 m
Roll period: 18.9 seconds
Steadiness - As gun platform (Average = 50 %): 89 %
- Recoil effect (Restricted arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 1.79

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.625
Length to Beam Ratio: 8.40 : 1
'Natural speed' for length: 55.36 kts
Power going to wave formation at top speed: 29 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 65.00 ft / 19.81 m
- Forecastle (20 %): 65.00 ft / 19.81 m
- Mid (50 %): 65.00 ft / 19.81 m
- Quarterdeck (10 %): 65.00 ft / 19.81 m
- Stern: 65.00 ft / 19.81 m
- Average freeboard: 65.00 ft / 19.81 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 34.2 %
- Above water (accommodation/working, high = better): 439.8 %
Waterplane Area: 513,864 Square feet or 47,739 Square metres
Displacement factor (Displacement / loading): 194 %
Structure weight / hull surface area: 538 lbs/sq ft or 2,626 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.49
- Longitudinal: 1.18
- Overall: 1.25
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Armament:

Missiles:

1264 total 56" PVLS. Mix and match per OGW parts sheet.
Notional PVLS loadout:
80 GBI and GBI-derived small recon satellites
320 SM-3 (notional 28" bore, c.f. 21" SM-3 full-bore Mk 41)
640 RGM-HYPER (notional scramjet SSM)
384 BGM-XX-28inFB (c.f. 21" BGM-109 Tomahawk)
1200 SM-2/SM-6 ER
144 RUM-XX (c.f. UUM-125)
2880 SM-2/6 MR
720 RGM-18in (c.f. Tomahawk, Harpoon/SLAM-ER)
1952 ESSM
160 PAC-3
6192 total area-defense SAM (summed from above)
6560 VL-RAM/Nulka (in spare cell space)
q.v. Designation-Systems for further data on most above systems, above image for cell packing factors.

15 x40 6" rocket turrets
Notional loadout:
360 Laser ZUNI
120 RAM
120 Decoy rockets (chaff, flare, etc)
Reload from below

Coffin MLRS (4x12, 4x6)
Long-range nuclear depth bomb rockets (approx 100km)
Long-range sonobuoy deployment rockets (approx 100km)
Land-bombardment GMLRS
Short-range saturation depth charge/AT-T rockets (approx 30km)
Short-range sonobuoy deployment rockets (approx 30km)
Reload from below

40 Super-Trident
Range to local gravity well (e.g. Luna)

4 Marine Rocket Delivery System
45000lb to 200nmi orbit, 55000lb to any Earth location
12 Space Marine crash couches plus equipment and light vehicle for typical Earth surrender-acceptance deployment
(c.f. SUSTAIN. Note again that we can't even come up with something on paper very much stranger than something the USMC requested in an actual recent budget)

Guns:
4 24"/60 VGAS, 7000lb shell, autoload, 6rpm per barrel, range functionally global with subcaliber ammunition (future replacement with railguns, etc. seems likely)
4 triple 12"/50, 80deg elevation, autoload, 10rpm per barrel (future replacement with railguns, etc. seems likely)
6 quad 5"/70, 85deg elevation, autoload, 40rpm per barrel (future replacement with railguns, etc. seems likely)
18 quad 57mm Bofors, 90deg elevation, belt-fed, 220rpm per barrel
15 GAU-12U ball mounts, 45deg half-angle cone of fire
8 0.60cal/40mm Mk 19, close-in defense covering blind spots under sponsons
2 twin 0.60cal, close-in bow defense
14 0.60cal GAU-19 hand-laid close-in defense
Approx 250 universal small arms ball mounts in Marine galleries in hull (q.v. This is important. Watch it all.)
Universal rail-mount for additional small arms
8 Marine 60-81-120mm Mortar Pits in deck covered by sliding hatches, also usable for Stinger, Javelin and TOW. Note minimum mortar range is such that both sets of pits, together, can cover the entire ship and immediate surroundings.

Directed Energy:
2 5MW-class laser turrets, 2.25m lens
6 1MW-class laser turrets, 1.5m lens
12 200KW-class laser turrets

Torpedos:
Four triple 30" long TT
Four triple 18" short ASW TT
18 octuple 8" anti-torpedo TT

Electronics:

Radar:
Highly distributed super-wideband active-array radar
-Commingled X/S/L/UHF-band
-Largest arrays are 120ft x 120ft (cf. 384 m^2 for Sea-Based X-band, 120x120ft PAVE PAWS)
-Various medium- and small-sized panel arrays
-Longer-wavelenth components are inactive in smaller arrays, but all panels are common line-replaceable units
Minor War Vessel Radar also shipped in two arrays, for navigation and absolute maximum horizon. Note the masthead height confers considerably enhanced horizon. Against a 20ft-high target, visual horizon is 25.2nmi; by the usual handwavy radar guidelines, the horizon for MWVR is about 30nmi.

EO/IR:
Many SAQ-37 Distributed Aperture System sensors, many at maximum height. Several independent networks.
Many SAQ-28 LITENING EO/IR targeting and laser-designation turrets, behind windows
Many AAQ-24 Directional IR Countermeasures, for blinding of homing missiles and Mk 1 eyeball
Several ARGUS IS EO/IR wide-view turrets, behind windows
Close-in IR/visible lighting system, behind windows
Close-in Ship Defense Searchlight, IR/visible dazzling and targeting sets, retractable
Smoke from SSTG (q.v. M56 Coyote)

RF ESM/ECM:
Distributed independent SLQ-32-inspired large ESM/ECM wideband arrays (horizontal and vertical boresight)
Two masthead ESM directional drum arrays
Various distributed ESM antennas
Radar-blocking carbon fiber smoke from SSTG (q.v. M56 Coyote)

Sonar/audio:
Bow dome for 1khz-class active/passive sonar
Many distributed MF active/passive sonar for close-in search and tracking
Many distributed HF active/passive sonar for torpedo and swimmer defense
Distributed wide-aperture LF passive hull sonar
Two SQR-20 TACTAS
SQQ-89 VDS
Six Nixie with reloads
Distributed turbine-pumped Victory Siren for surface craft dissuasion

Surface Craft:

2 375x50ft well decks
Notional loadout:
4 LCAC
2 Skjold-derived advance towed array sea sanitizers, aerially refueled
4 DSRV and DSRV-size seal delivery vehicle

Crane-based well deck small craft distribution system
Notional loadout:
Mix of 20 WLD-1 RMS, 11m RHIB, 7m autonomous RHIB
Reconfigurable at sea based on additional craft in vehicle decks

Vehicle decks:
volume functionally unlimited compared to available landing craft

Aircraft:

36 F-35
12 EF-35
22 R-99/STOVL (twin F135 engine); 6 AEW, 10 ASW, 6 tanker
10 SV-22 ASW
10 MV-22 multirole
8 H-53K (Skjold-refueling, minesweeper)
4 HH-60
10 A160T
Two 515x250x25ft hangar bays, plus six 80x35x25ft +5 rapid reaction hangar bays (sufficient for full spotting below decks)

Complement:

Navy: Approx. 8000-9000
Marines: Full MEU(SOC), approx. 2000, including approx. 60 Space Marines from SUSTAIN

There is an intrinsic assumption that the real threats for OGW are asymmetrical ones (it's not an exaggeration to say that we have enough SAMs to destroy the entire Harpoon production run outside of RAM range). Thus note things like note our hundreds of firing ports for marines, machine gun turrets and extensive smoke generating abilities, this stems from the belief that since OGW will destroy any large scale threat, the real threat would be several tens of thousands of speed boats with recoilless rifles and similar weapons attempting to board. Of course they have to get close first - the shown dedicated searchlight systems are definitely the tertiary system, after the primary (5MW) and secondary (1MW) laser systems. The laser turrets have mirror and associated optics multiplexed with undefined horrifyingly powerful searchlight systems, as well as fairly glorious telescopes for rangefinding against ground targets and/or finding space-communist targets on the Moon. The main blinding system is the dozens and dozens of AAQ-24 infared countermeasure turrets. Those are the ones that use a low power laser to blind missile seekers; no reason that they can’t spin around constantly blinding humans so that passing civilians cannot even take pictures of the ship. The lights are more for use in non combat situations in friendly waters.

Similar threats might be posed by squadrons of Alfa-like submarines with a Natter-like nose of one-use torpedo tubes. Hence massive spam of anti-torpedo torpedos, tons of sonar of all frequencies, and so on.

One more note (thanks Timothy) - if I see any of these (non-factual) parts or pieces or anything else used without permission in any NationStates inanity, or hear about someone doing such, I will banhammer the ever-living shit out of them. So don't do that. You may feel free to ask permission. Expect the answer to be 'no'.

Shipbucket

Objective Global Warship

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