Author Topic: Warship design needed - Early Yardship.  (Read 1859 times)

marauder648

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Warship design needed - Early Yardship.
« on: 10 September 2017, 03:53:24 »
Liparius Class Mobile Repair Yard.

With a massive number of repair yards within Hegemony space, if a warship or jumpship needed to have repairs carried out then they could easily move a jump or two and would find themselves usually in a system with a fully established repair facility.  This wealth of facilities made the nascent SLDF seem to forget that not everywhere else had the same level of resources and when the Reunification War came along the SLDF was in for a huge shock to the system.

If a ship was damaged in battle ‘in the wilds’ then it meant one of two things.  Carrying out ad-hoc repairs with the crew doing most of the work, or risking a jump back to an established facility.  The problem was that there were no major facilities, at least none captured intact.  This could mean a journey of weeks or even months back to a yard for a ship, which came with its own dangers depending on how bad the damage was.

The other option was to simply wait whilst Logistics Command built a temporary yard.  Even with their muscle and resources this could take months to build and bring on line, thus taking the damaged ships out of the line for anywhere from 2 – 6 months before repairs could even begin.

Recognising that this was simply unacceptable the SLDF put out an emergency tender for a mobile repair yard that could service, repair and maintain ships in the field without having to bring them home to a fixed (and thus vulnerable) position.

The designers of the Farragut class battleship the mainstay of the SLDF’s battle line accepted the challenge and began working with a design based on the Farragut’s hull.

Removing all but a few weapons for self-defence whilst also reducing the power to the four massive Hispano-Rawlings engines reduced the ships thrust somewhat but this was not needed for a support unit.  Some of the weight saved was applied to the hull and the ships beam was increased whilst armour was also thinned out somewhat.  This freed up a considerable amount of tonnage but more was needed.  The forwards hull was extended by 550 meters (a total length of 1955 meters), this was then combined with the forwards hull to create a 650-meter-long pressurised repair bay accessed by a pair of huge doors in the bow.  Whilst not long enough to fully accommodate a cruiser it was enough to allow work crews to work in an assisted environment even if it did look like a ship being serviced would have its bow or stern ‘hanging out’ of the front of the ship through the huge open doors of the repair bay.
To assist in repairs of larger vessels that could not fit in the forwards repair bay a massive extending gantry system was fitted to the starboard side.  Capable of deploying in 45 minutes with a full array of cranes, jibs and retracting servo arms and cutting devices with access to the massive cargo holds inventory to allow the ship to help repair external hull plating as well as carrying out other major structural repairs.

The Farragut’s fearsome fighter compliment was utterly eliminated whilst another two dropship collars were added bringing the total to 4, these would be dedicated tugs and maintenance vessels. The small craft compliment was also increased to 14 up from 10.
The large central 150 meter grav-deck was retained whilst the smaller 45 meter one was enlarged to a 75-meter deck.  Additional berths were fitted for other ships crews and the marine compliment was reduced a 50-man security detachment.  With next to no weaponry save AMS systems fitted and a pair of NL-45’s in the front and stern quarters and with no aerospace fighters aboard the crew compliment went down, but these were replaced with engineers and yard personnel.  The cargo bays carried anything from hull armour plating to miles of wiring, spare NAC barrels and laser focusing arrays, deck plating, banks of computers and tonnes of food and other supplies for when a ship just needed to replenish its stocks.  The final piece of the puzzle was a very new, very expensive (and somewhat temperamental) Lithium Fusion battery that gave the huge ships considerable strategic mobility, letting them move to ships in need of repair quickly.

The first ship the SLS Liparius was rushed into completion and managed to take part in the closing 9 months of the Reunification War where she was able to provide support for the fleets advancing on Taurus, dramatically shortening the supply chain.

By no means a combat vessel the Liparius was always accompanied by at least two destroyers, often a full group of four would guard her and due to her important strategic nature she would often lurk in a systems Oort cloud, well off the beaten path.  Despite her sluggishness in manoeuvring and the ship being all but defenceless she performed well enough in her role under the command of Commodore Karl Stromberg.  This performance was enough to have the SLDF press for more orders for the class with another 9 being ordered.  The ’10 Greeks’ as the class were known due to their naming convention being that of Greek/Classical deities and figures were assigned to major fleet elements and kept in constant service.

One ship the SLS Prometheus was lost due to an asteroid impact from a rogue rock which impacted on her bow, causing significant structural damage and starting several on-board fires that quickly got out of control.  Abandoned and aflame the ship was scuttled by her escorting destroyers.

The SLS Hecate was crippled over the Titan Yards in the Sol System by forces loyal to Stefan Amaris but the ship’s captain refused to surrender and overloaded the main reactor, destroying the vessel and two Rim World Pinto class vessels in the blast.

The surviving vessels (four in total) at the end of the Amaris Civil War departed with General Kerensky.  It is believed that along with a Newgrange class vessel that they helped form a major part of the Lum shipyards.




The idea for her is a kind of 'small' yardship (if you can call anything nearly 2000 meters long small) as a precursor to the Newgrange and her ilk.  Armament is light as all hell, they stripped it out to fit in work facilities and crew quarters, with some NL's and probably some Barracuda's and point defences (pulse lasers and AMS ) with space for cargo, work crews, her unpressurized external bay and presurrized internal one etc.  She'd be slow 2/3 at best and the armour would be trimmed down from the Farragut's originally thick hide (same as the McKenna).  A LF battery is a must though.  Other features like a large MASH or other facilities would be good, and a mobile HPG is required too.
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dragonkid11

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Re: Warship design needed - Early Yardship.
« Reply #1 on: 10 September 2017, 04:59:49 »
Well, first time attempting to design a warship.

Code: [Select]
                   AeroTech 2 Vessel Technical Readout
                                  VALIDATED

Class/Model/Name:  Liparius Class Mobile Repair Yard
Tech:              Inner Sphere / 2750
Vessel Type:       WarShip
Rules:             Level 3, Standard design
Rules Set:         AeroTech2

Mass:              1,680,000 tons
K-F Drive System:  (Unknown)
Length:            1,955 meters
Sail Diameter:     1,700 meters
Power Plant:       Standard
Safe Thrust:       2
Maximum Thrust:    3
Armor Type:        Standard
Armament:         
    4 NL45
   32 Large Pulse Laser
   32 AMS
    8 Barracuda
   32 Medium Pulse Laser
   32 ER PPC
------------------------------------------------------------------------------
Class/Model/Name:  Liparius Class Mobile Repair Yard
Mass:              1,680,000 tons

Equipment:                                                            Mass 
Power Plant, Drive & Control:                                      201,600.00
Thrust:  Safe Thrust: 2
      Maximum Thrust: 3
Kearny-Fuchida Hyperdrive:  Compact (Integrity = 32)               760,200.00
Lithium Fusion Battery                                              16,800.00
Jump Sail: (Integrity = 7)                                             114.00
Structural Integrity: 3                                              5,040.00
Total Heat Sinks:    679 Double                                           .00
Fuel & Fuel Pumps:                                                  10,200.00
Bridge, Controls, Radar, Computer & Attitude Thrusters:              4,200.00
Fire Control Computers:                                                446.00
Food & Water:  (228 days supply)                                     7,500.00
Hyperpulse Generator:                                                   50.00
Armor Type:  Standard  (40 total armor pts)                             99.00
                           Capital Scale Armor Pts
   Location:                            L / R
   Fore:                                 11
   Fore-Left/Right:                    6/6
   Aft-Left/Right:                     6/6
   Aft:                                   5

Cargo:
   Bay 1:  Small Craft (14) with 2 doors                             2,800.00
   Bay 2:  Press Repair Facil. (1,400,000 T Capy, 1 door)          105,000.00
   Bay 3:  UnPress Repair Facil. (2,400,000 T Capy, 1 door)         60,000.00
   Bay 4:  Cargo (1) with 2 doors                                  200,000.00
   Bay 5:  Cargo (1) with 2 doors                                  200,000.00
   Bay 6:  Cargo (1) with 1 door                                    53,158.00

DropShip Capacity:  4 Docking Hardpoints                             4,000.00
Grav Deck #1:  (150-meter diameter)                                    100.00
Grav Deck #2:  (75-meter diameter)                                      50.00
Life Boats:  550 (7 tons each)                                       3,850.00
Escape Pods:  550 (7 tons each)                                      3,850.00

Crew and Passengers:
     70 Officers (70 minimum)                                          700.00
    311 Crew (311 minimum)                                           2,177.00
     34 Gunners (34 minimum)                                           238.00
  6,000 Steerage Passengers                                         30,000.00
     84 Marines                                                        420.00
     70 Bay Personnel                                                     .00
Weapons and Equipment      Loc        SRV    MRV    LRV    ERV  Heat    Mass
------------------------------------------------------------------------------
2 NL45                     Nose         9      9      9      9  140  1,800.00
4 Large Pulse Laser        Nose     4(36)  4(36)     --     --   40     28.00
4 AMS(240 rounds)          Nose        --     --     --     --    4     22.00
4 Barracuda(40 msls)       Nose         8      8      8      8   40  1,560.00
4 Medium Pulse Laser       Nose     2(24)     --     --     --   16      8.00
4 ER PPC                   Nose     4(40)  4(40)  4(40)     --   60     28.00
4 Large Pulse Laser        FL/R     4(36)  4(36)     --     --   80     56.00
4 AMS(240 rounds)          FL/R        --     --     --     --    8     44.00
4 Medium Pulse Laser       FL/R     2(24)     --     --     --   32     16.00
4 ER PPC                   FL/R     4(40)  4(40)  4(40)     --  120     56.00
4 Large Pulse Laser        L/RBS    4(36)  4(36)     --     --   80     56.00
4 AMS(240 rounds)          L/RBS       --     --     --     --    8     44.00
4 Medium Pulse Laser       L/RBS    2(24)     --     --     --   32     16.00
4 ER PPC                   L/RBS    4(40)  4(40)  4(40)     --  120     56.00
4 Large Pulse Laser        AL/R     4(36)  4(36)     --     --   80     56.00
4 AMS(240 rounds)          AL/R        --     --     --     --    8     44.00
4 Medium Pulse Laser       AL/R     2(24)     --     --     --   32     16.00
4 ER PPC                   AL/R     4(40)  4(40)  4(40)     --  120     56.00
2 NL45                     Aft          9      9      9      9  140  1,800.00
4 Large Pulse Laser        Aft      4(36)  4(36)     --     --   40     28.00
4 AMS(240 rounds)          Aft         --     --     --     --    4     22.00
4 Barracuda(40 msls)       Aft          8      8      8      8   40  1,560.00
4 Medium Pulse Laser       Aft      2(24)     --     --     --   16      8.00
4 ER PPC                   Aft      4(40)  4(40)  4(40)     --   60     28.00
------------------------------------------------------------------------------
TOTALS:                                            Heat: 1,320   1,680,000.00
Tons Left:                                                                .00

Calculated Factors:
Total Cost:        68,553,448,000 C-Bills
Battle Value:      28,531
Cost per BV:       2,402,770.6
Weapon Value:      9,533 (Ratio = .33)
Damage Factors:    SRV = 1,186;  MRV = 820;  LRV = 366;  ERV = 140
Maintenance:       Maintenance Point Value (MPV) = 651,855
                   (19,711 Structure, 606,070 Life Support, 26,074 Weapons)
                   Support Points (SP) = 476,610  (73% of MPV)
BattleForce2:      Not applicable

Might have used a bit too advanced technology just to protect a yardship, and I split the cargo bay into multiple parts to fluff it as a safety measure as well as to make sure someone don't accidentally lose an entire warship in there.
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marauder648

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Re: Warship design needed - Early Yardship.
« Reply #2 on: 10 September 2017, 05:24:49 »
Actually thats pretty darn fine, but beef her hull up so its at least 100 on each section otherwise she's achingly vulnerable.
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dragonkid11

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Re: Warship design needed - Early Yardship.
« Reply #3 on: 10 September 2017, 05:49:46 »
Code: [Select]
                    AeroTech 2 Vessel Technical Readout
                                  VALIDATED

Class/Model/Name:  Liparius Class Mobile Repair Yard
Tech:              Inner Sphere / 2750
Vessel Type:       WarShip
Rules:             Level 3, Standard design
Rules Set:         AeroTech2

Mass:              1,680,000 tons
K-F Drive System:  (Unknown)
Length:            1,955 meters
Sail Diameter:     1,700 meters
Power Plant:       Standard
Safe Thrust:       2
Maximum Thrust:    3
Armor Type:        Standard
Armament:         
    4 NL45
   32 Large Pulse Laser
   32 AMS
    8 Barracuda
   32 Medium Pulse Laser
   32 ER PPC
------------------------------------------------------------------------------
Class/Model/Name:  Liparius Class Mobile Repair Yard
Mass:              1,680,000 tons

Equipment:                                                            Mass 
Power Plant, Drive & Control:                                      201,600.00
Thrust:  Safe Thrust: 2
      Maximum Thrust: 3
Kearny-Fuchida Hyperdrive:  Compact (Integrity = 32)               760,200.00
Lithium Fusion Battery                                              16,800.00
Jump Sail: (Integrity = 7)                                             114.00
Structural Integrity: 45                                            75,600.00
Total Heat Sinks:    679 Double                                           .00
Fuel & Fuel Pumps:                                                  10,200.00
Bridge, Controls, Radar, Computer & Attitude Thrusters:              4,200.00
Fire Control Computers:                                                446.00
Food & Water:  (228 days supply)                                     7,500.00
Hyperpulse Generator:                                                   50.00
Armor Type:  Standard  (635 total armor pts)                         1,511.50
                           Capital Scale Armor Pts
   Location:                            L / R
   Fore:                                115
   Fore-Left/Right:                  105/105
   Aft-Left/Right:                   105/105
   Aft:                                 100

Cargo:
   Bay 1:  Small Craft (14) with 2 doors                             2,800.00
   Bay 2:  Press Repair Facil. (1,400,000 T Capy, 1 door)          105,000.00
   Bay 3:  UnPress Repair Facil. (2,400,000 T Capy, 1 door)         60,000.00
   Bay 4:  Cargo (1) with 2 doors                                  200,000.00
   Bay 5:  Cargo (1) with 2 doors                                  181,185.50

DropShip Capacity:  4 Docking Hardpoints                             4,000.00
Grav Deck #1:  (150-meter diameter)                                    100.00
Grav Deck #2:  (75-meter diameter)                                      50.00
Life Boats:  550 (7 tons each)                                       3,850.00
Escape Pods:  550 (7 tons each)                                      3,850.00

Crew and Passengers:
     70 Officers (70 minimum)                                          700.00
    311 Crew (311 minimum)                                           2,177.00
     34 Gunners (34 minimum)                                           238.00
  6,000 Steerage Passengers                                         30,000.00
     84 Marines                                                        420.00
     70 Bay Personnel                                                     .00
Weapons and Equipment      Loc        SRV    MRV    LRV    ERV  Heat    Mass
------------------------------------------------------------------------------
2 NL45                     Nose         9      9      9      9  140  1,800.00
4 Large Pulse Laser        Nose     4(36)  4(36)     --     --   40     28.00
4 AMS(240 rounds)          Nose        --     --     --     --    4     22.00
4 Barracuda(40 msls)       Nose         8      8      8      8   40  1,560.00
4 Medium Pulse Laser       Nose     2(24)     --     --     --   16      8.00
4 ER PPC                   Nose     4(40)  4(40)  4(40)     --   60     28.00
4 Large Pulse Laser        FL/R     4(36)  4(36)     --     --   80     56.00
4 AMS(240 rounds)          FL/R        --     --     --     --    8     44.00
4 Medium Pulse Laser       FL/R     2(24)     --     --     --   32     16.00
4 ER PPC                   FL/R     4(40)  4(40)  4(40)     --  120     56.00
4 Large Pulse Laser        L/RBS    4(36)  4(36)     --     --   80     56.00
4 AMS(240 rounds)          L/RBS       --     --     --     --    8     44.00
4 Medium Pulse Laser       L/RBS    2(24)     --     --     --   32     16.00
4 ER PPC                   L/RBS    4(40)  4(40)  4(40)     --  120     56.00
4 Large Pulse Laser        AL/R     4(36)  4(36)     --     --   80     56.00
4 AMS(240 rounds)          AL/R        --     --     --     --    8     44.00
4 Medium Pulse Laser       AL/R     2(24)     --     --     --   32     16.00
4 ER PPC                   AL/R     4(40)  4(40)  4(40)     --  120     56.00
2 NL45                     Aft          9      9      9      9  140  1,800.00
4 Large Pulse Laser        Aft      4(36)  4(36)     --     --   40     28.00
4 AMS(240 rounds)          Aft         --     --     --     --    4     22.00
4 Barracuda(40 msls)       Aft          8      8      8      8   40  1,560.00
4 Medium Pulse Laser       Aft      2(24)     --     --     --   16      8.00
4 ER PPC                   Aft      4(40)  4(40)  4(40)     --   60     28.00
------------------------------------------------------------------------------
TOTALS:                                            Heat: 1,320   1,680,000.00
Tons Left:                                                                .00

Calculated Factors:
Total Cost:        68,590,096,000 C-Bills
Battle Value:      40,214
Cost per BV:       1,705,627.29
Weapon Value:      33,079 (Ratio = .82)
Damage Factors:    SRV = 1,186;  MRV = 820;  LRV = 366;  ERV = 140
Maintenance:       Maintenance Point Value (MPV) = 723,108
                   (90,964 Structure, 606,070 Life Support, 26,074 Weapons)
                   Support Points (SP) = 476,610  (66% of MPV)
BattleForce2:      Not applicable

Done, but this ship is hilariously tougher than some actual combat warships of the era now.
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Sure it isn't the most practical 'mech ever designed, but it's a hundred ton axe-murderer. If loving that is wrong I don't wanna be right.

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marauder648

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Re: Warship design needed - Early Yardship.
« Reply #4 on: 10 September 2017, 06:35:23 »
Heh, she's tougher than destroyers and the likes but she's weaker protected than the cruisers of the period, but then again if this ship comes under direct attack, something's gone VERY wrong.  She's a big strategic resource and would have an escort screen permanently attached to her.  I'd also see them hiding at jump points or somewhere in a systems Oort cloud or something until called upon to depart a system and jump out. 

And thank you for this, she's magnificent and just what is needed :)
« Last Edit: 10 September 2017, 06:44:13 by marauder648 »
Ghost Bears: Cute and cuddly. Until you remember its a BLOODY BEAR!

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