NationStates Jolt Archive


Homage to the Admirals of old: The Admiral-class Battlecruiser

DontPissUsOff
14-08-2004, 22:33
Admiral class Battlecruiser

http://img26.exs.cx/img26/5784/Renown-01modsupc1.jpg

Overview

The approval of the Tempest-class Battlecruisers came as a pleasant surprise to those who had been reluctant to support them. Their combination of firepower and speed seemed ideal for diplomatic voyages, escort duty and providing presence in forward areas where deployment of Battleships was not an option. The Tempest also met with some interest abroad, although the restrictions on sales meant that only three were sold, to the nation of Hattia.

The Tempests were however felt to be simply too expensive for high-volume production. Procurement Plan 21 called for the construction of 120 Battlecruisers, 40 Battleships and 16 Command Battleships within the space of 20 years; at the cost of the Tempest-class ships, this would total some 6.324 tillion dollars'expenditure on Battlecruisers alone, not accounting for upgrades to those ships already constructed, inflation, raw material price increases, labour cost increases, accidents, and so forth. As a comparatively low-cost complement for the Tempests, the Naval Office set into motion a programme for further research into Battlecruiser design. The programme was allotted medium priority, as the Naval Office's resources were already being extensively used on other work. The Naval Office was however able in December 2001 to issue the design criteria for the ship. The new Battlecruiser, tentatively dubbed the Admiral Romanov class after one of the greatest of DPUO Admirals, was to have 8 14-inch guns of the same type as fitted to the Tempest-class, mounted in four superfiring twin-gun turrets; an identical armour scheme where possible; a top speed of 35 knots or more; a displacement lower than that of the Tempest and smaller dmiensions; and the ability to carry out all the missions allocated to the Tempests.

These design parameters were found to create conflicting requirements. The fitment of 8 14in guns would have given these ships the same armament as the Tempests, but the use of four turrets would in fact have increased the displacement of the design. The reactor technology needed to attain a speed of 35+ knots would also have approximately the same mass as that of the original Tempest design. In addition, making a ship smaller than the Tempest yet able to mount all the weapons and armour needed to perform all of that ship's operations was also extremely difficult.

The Naval Office had however learned well from their experience in drawing up the requirements for the Tempest, and thus had given the design bureaux a rather more free hand than might otherwise have been the case. The only remaining problem was the lack of shipyards willing to submit a design. The reason for this was simple: they could not build the new ships. Every shipyard in DPUO had been assigned the construction of some sort of large surface combatant. The Soyuz and Harland's yards were working flat out on the building of Soyuz and Frunze-class Battleships, as well as the Hunter-class Command Battleships, and the two smaller yards oof Balfour and Kurtsov (which were amalgamated shortly after the announcement of the required specifications to form the DPUO State Shipbuilding Works) were occupied in construction of the Tempest-class Battlecruisers. Though each group submitted designs, none felt themselves able to construct the number of ships required, which was about 60. Not even the selection of the comparatively cheap and uncomplicated design submitted by the soon-to-be DSSW was considered practicable.

The Naval Office therefore took the unprecedented move of enacting its' right to utilise smaller concerns for military shipbuilding. The 20 small civil shipyards around DPUO were each assign their respective tasks, be that task construction of hull plates, propellers, frames, or missile mountings. The electronics industry was also turned to the task of providing the electronics needed for the construction of the ship's fire-control and sensor systems, while the nation's heavy gun builders were simply told to work double hours and get triple overtime pay. Even so, progress on the first of the class was extremely slow, especially following the commencement of the CM Cold War. Laid down on 7th October 2002, the first of the class, the Admiral Romanov, was only completed in July 2004, and in the end, the saving on the Tempest-class was minimal.


General

Crew: 1,762
Displacement: 70,090 tonnes unladen, 78,982 tonnes fully laden
Endurance: 120 days' steaming, 70 days' combat
Dimensions: Length 384m, Beam 33.2m, Draught 8.5m (mean)

Armament

Main armament is the DK-77 15-inch rifled naval gun, mounted in three twin-gun turrets each with elevation of 44 degrees and depression of -13 degrees. The guns fire APDS, HE, HE-FRAG, smoke, laser-guided 8-inch, chemical and nuclear shells. Maximum range is 43km, with an accurate range of 22.8km. The armour-piercing shell has a mass of 2,022lbs. Barrel life is approximately 360 full-charge firings.

Secondary armament is six 2A64N1 lengthened smoothbore 152mm guns, mounted in triple turrets toward the stern of the ship. The guns can elavate to 46 degrees, depress to -16 degrees, and have a maximum range of 33km and a maximum accurate range of 20km. The guns can as in the Tempest fire the Krasnopol-M ATGM.

The ship also carries 12 VLS cells for the SS-N-19 or -19B long-range cruise missile, and a pair of trainiable four-round launcher boxes for the SS-N-26 "Yakhont" SSM atop the superstructure, fed by armoured vertical reloading system chutes.

Anti-aircraft and anti-missile defences consist of 5 AO-18 CIWS guns and 4 ASL-100 combination gun-flechette launchers, plus two SA-N-20 launchers. The latter two form the IULLDES (http://forums2.jolt.co.uk/showthread.php?t=343036) defence system, which is responsible for short and very short-range anti-aircraft and anti-missile defences. Mid-range defence is the SA-N-9 SAM, set in four launchers mounted on the superstructure and fed by armoured vertical reloading chutes. Long-range air defences are provided by the SA-N-6 SAM, mounted on either side of the after deck in two 4-cell VLS units.

Anti-submarine systems consist of the SS-N-27 ballistic anti-sub weapon launcher, of which two are carried, mounted on the superstructure in rounded, armoured housings, and five FRAS-1 anti-submarine mortars, mounted to give maximum coverage of the ship. These mortars
must be reloaded by a rotary autoloader after a full discharge, which requires approximately 5 minutes to complete.

The ship carries a towed anti-torpedo decoy, type OF-55.

This class also has a hangar bay that can accommodate 1 Ka-27B ASW helicopter or four Yak-061 "Shmel" UAVs at the aft superstructure.


Ammunition allocations

Main armament: 660 rounds
Secondary armament: 720 rounds
SA-N-6: 100 missiles
SA-N-9: 120 missiles
SA-N-20: 60 missiles
SS-N-19: 12 missiles
SS-N-26: 24 missiles
SS-N-27: 18 missiles
FRAS-1: 350 rockets
CIWS: 248,000 rounds

Compartmentation

The hull is divided by 90mm titanium alloy bulkheads into 9 compartments, each with its' own independent pump system and power generator for that pump system.

1) Storage, crew accommodation, fuel for emergency gas turbine engines, sonar dome, sonar backup computers;
2) SS-N-19 VLS systems, some CIWS storage;
3) Forward main armament and main CIWS storage;
4) Reactor spaces, with separate armoured upper compartment for SAM magazines;
5) Main machinery spaces, containing four sets geared steam turbines, turboalternators, batteries, with separate upper compartment for some SAM and secondary armament ammunition

storage;
6) SS-N-26 magazines, secondary gun magazines;
7) 20% After main armament ammunition storage, auxiliary fire-control computers, general storage, emergency diesel engines with fuel storage, emergency generators;
8) After main armament storage (80%), after SAM, ASW and CIWS storage;
9) Stern storage, backup diesel fuel storage, auxiliary command area, steering equipment.


The ammunition magazines incorporate blow-out panels and pressure-release valves to minimise damage in the event of a magazine explosion. The large open spaces of the engine and reactor rooms are divided by transverse bulkheads separating the individual reactors, engines and shafts. One reactor can run both sets of turbines via pipelines which traverse the bulkheads. The movement of the turboalternators and backup engines to separate compartments reduces the chance of a single hit disabling the ship's power.

Armour

The armour belt runs thusly:

Bow to bulkhead 1: 360mm composite armour with double-layer of Kontakt-5 ERA. Deck armour of two layers of 120mm composite armour, with insulating foam in between layers.

Bulkhead 1 to bulkhead 2: 390mm composite armour, with double-layer of Kontakt-5 ERA. Deck armour of two layers of 180mm composite armour, with insulating foam between layers. 150mm torpedo bulge.

Bulkhead 2 to bulkhead 3: 430mm composite armour, with double-layer of Kontakt-5 ERA. Deck armour of two layers of 195mm composite armour, with insulating foam between layers. 100mm torpedo bulge, widening to 150mm at bulkhead 2.

Bulkhead 3 to bulkhead 4: 390mm composite armour, with double-layer of Kontakt-5 ERA. Deck armour of two layers of 180mm composite armour, with insulating foam between layers. 150mm torpedo bulge.

Bulkhead 4 to bulkhead 5: 350mm composite armour, with double-layer of Kontakt-5 ERA. Deck armour of two layers of 180mm composite armour, with insulating foam between layers. 150mm torpedo bulge.

Bulkhead 5 to bulkhead 6: 385mm composite armour with double-layer of Kontakt-5 ERA. Deck armour of two layers of 120mm composite armour, with insulating foam in between layers. 15omm torpedo bulge.

Bulkhead 6 to bulkhead 7: 350mm composite armour with double-layer of Kontakt-5 ERA. Deck armour of two layers of 150mm composite armour, with insulating foam in between layers. 150mm torpedo bulge.

Bulkhead 7 to bulkhead 8: 430mm composite armour, with double-layer of Kontakt-5 ERA. Deck armour of two layers of 195mm composite armour, with insulating foam between layers. Torpedo bulge of 150mm.

Bulkhead 8 to stern: 350mm composite armour with double-layer of Kontakt-5 ERA. Deck armour of two layers of 150mm composite armour, with insulating foam in between layers. Torpedo bulge narrows from 150mm to 0mm within 20m of bulkhead 8.

Turret armour

Main turrets

Front: 320mm composite armour
Side: 250mm composite armour
Rear: 120mm composite armour
Roof: 200mm composite armour

Secondary turrets

Front: 260mm composte armour
Side: 175mm composite armour
Rear: 100mm composite armour
Roof: 120mm composte armour

Superstructure uses titanium alloy armour of 290mm thickness, able to stop missiles, shells up to 16in.

Conning tower has 320mm composite armour.

Electronics


Radar/LADAR

MR-710 Fregat-MA 3d Air/Surface search radar, datalinked with Kite Screech and Oko radars
4 Palm Frond Nav radar
Volna SA-N-6 fire-control radar
Kite Screech AK-130 fire-control radar
IULLDES LADAR and Radar systems (4 Osminog LADAR, 4 Oko Fire-control radar, 2 SBI-16KB surface-search radar)
2 MR-360/Podkat SA-N-9 Fire-control
Garpun-Bal SSM guidance/targeting radar


Sonar

Zvezda-IIM Sonar suite, MKG-345 bow-mounted LF sonar dome
Ox Tail-B LF VDS


Fire-control

KOK-615B1 fire-control computer, measures gun angle, ship speed, target speed, wind speed, wind direction, cant angle, air temperature, gun temperature, an inputted barrel wear value and ship movement to give highly accurate fire-control for main armament and secondary armament.


EW

Wine Glass and Bell Shroud ESM Intercept receivers
Bell Squat Jammer systems
Burn Eye anti-LADAR smoke generators; armoured vents in sides of hull
16 PK-10 Chaff Decoy RLs

Propulsion

2 OK-700V 210MW Pressurised-water reactors driving four sets geared steam turbines turning four shafts, each with 1 seven-bladed variable-pitch bronze screw.

4 backup S-66M 10,000hp diesel engines, one per shaft, driving through two automatic gearboxes with 4 forward and 2 reverse speeds, attached via 1 direct-drive shaft per engine to 1 B-12 emergency generator.

Top speed for the class is 36-38 knots.
DontPissUsOff
15-08-2004, 01:23
Bump - probably not for sale, but feedback welcomed.
Turkmeny
15-08-2004, 01:24
It looks good, but by the title I thought you were going to be making a more old fashioned battleship.
DontPissUsOff
15-08-2004, 01:25
Bah! Old-fashioned! *Waves stick* I don' do old-fashioned, young 'un! :D

Seriously, it is a tad misleading I suppose. Ah well.
Sevaris
15-08-2004, 01:27
Excellent. Another fine product from the DPUO yards.
Turkmeny
15-08-2004, 01:27
Hold on a tic, the beam looks a little low for a ship of that length? Or am I doing my metric conversions wrong? (Damn you America! Adopt Metric! ADOPT IT!)
Roach-Busters
15-08-2004, 01:27
Very awesome!
DontPissUsOff
15-08-2004, 01:28
Hmm. Beam would be about 100ft...hold on, I'll find the Repulse.
DontPissUsOff
15-08-2004, 01:29
Beam's about 100ft. I suppose I ought to make it bigger. Hold on a tick, dimension-changing in progress.
Turkmeny
15-08-2004, 01:30
All right, that looks good.
DontPissUsOff
15-08-2004, 01:32
Done! :D Thanks mate!
Turkmeny
15-08-2004, 01:35
Any time.

BTW, have you read the book Battleship Yamato by Janusz Skulski? It is definitely one of the most detailed books ever written about a battleship. I highly recommend it.
DontPissUsOff
15-08-2004, 01:37
Can't say I have, but I shall endeavour to get my hands upon it. BTW, I recommend in return two works: Battleships of World War II by M.J. Whitley, from whence I have drawn much stylistic inspiration and knowledge, and [A] History of the World's Warships by Chris Chant, which is harder to find (I found it by sheer luck in a newsagent's in Wales) but absolutely packed full of detail.
Edenstein
15-08-2004, 01:42
*tag*
Voderlund
15-08-2004, 02:08
Excellent ship in all respects, very well thought out and designed. Out of courosity, does your navy have carriers?
DontPissUsOff
15-08-2004, 02:12
Yeah. I use the Kuznetsov-II (Kuznetsov with the sonars of all the Battleships, plus a nuclear powerplant), the Kiev-II (likewise) and the Ul'yanovsk (http://www.fas.org/man/dod-101/sys/ship/row/rus/1143_7.htm), which was a Russian equivalent to the Nimitz, sadly terminated for lack of funds.
DontPissUsOff
15-08-2004, 02:50
Bümp for more feedback
Communist Mississippi
15-08-2004, 03:05
(In a sly voice) "Hello this is the governor-general Thomas Stahlecker of Ohio. I'd like to buy five of your ships so we can increase the Lake Erie Navy. We'd like to remind you that Ohio is totally free and independent, we are a sovereign nation with no ties to any nations that might be hostile towards you. We anxiously await the confirmation of our purchase request and the subsequent receival of the ships."
DontPissUsOff
15-08-2004, 03:09
"Get off this phone line before I stick a raw steak between your buttocks and introduce you to a starving lion."
Communist Mississippi
15-08-2004, 03:09
"Get off this phone line before I stick a raw steak between your buttocks and introduce you to a starving lion."

(Stahlecker) "So I guess that means no deal eh?"
DontPissUsOff
15-08-2004, 03:12
"That depends. If you can abandon permanently Nazism, white supremacism, christian fundamentalism and imperialism, remove all privately-owned weapons of any kind from their owners and destroy them, institute a democratic Government, abolish show trials, and execute every member of the rulind regime in your country, then yes, I think we could begin to consider it."
Communist Mississippi
15-08-2004, 03:13
"That depends. If you can abandon permanently Nazism, white supremacism, christian fundamentalism and imperialism, remove all privately-owned weapons of any kind from their owners and destroy them, institute a democratic Government, abolish show trials, and execute every member of the rulind regime in your country, then yes, I think we could begin to consider it."


Stahlecker hung the phone up without replying.
DontPissUsOff
15-08-2004, 03:18
"Well, that worked," said the switchboard operator cheerfully.
Communist Rule
15-08-2004, 03:56
Meh.
Communist Mississippi
15-08-2004, 04:09
Meh.


Interesting...
Communist Rule
15-08-2004, 04:24
Said "Meh" was in response to a discussion he and I had a couple of hours ago over battleships.
Doujin
15-08-2004, 05:30
Hold on a tic, the beam looks a little low for a ship of that length? Or am I doing my metric conversions wrong? (Damn you America! Adopt Metric! ADOPT IT!)

OOC: Hardly any Americans know the full ISS, so adopting Metric and teaching them it wouldn't be extremely hard. The thing that is preventing the US adoption of the Metric System is businesses. They all currently have their materials printed using the ISS system, and if the government would require that they re-print everything so that it was usnig the metric system and as such all the big business industries lobby against it. Too expensive.
IDF
15-08-2004, 05:32
OOC: Hardly any Americans know the full ISS, so adopting Metric and teaching them it wouldn't be extremely hard. The thing that is preventing the US adoption of the Metric System is businesses. They all currently have their materials printed using the ISS system, and if the government would require that they re-print everything so that it was usnig the metric system and as such all the big business industries lobby against it. Too expensive.
OOC: I know the ISS conversions pretty well thanks to my physic's classes, but I also know that the elderly tend to be VERY against the ISS. I'm all for the change to it as it makes things simpler.
Arenumberg
24-08-2004, 15:47
In a settlement agreed in a talk between representatives, for the sum of 40 Billion, DPUO will provide 6 of these ships.

We will pay you when we get them.
DontPissUsOff
24-08-2004, 15:48
Yep, that's true. Six of these fine vessels. Construction time will be four years.