[gurps] [VEHICLE] of the week 739 – Multirole Submarine

[Onno Meyer]

  This is a weekly posting with GURPS vehicles (and the like) to the 
GURPSnet mailing list. I grant the permission for all non-commercial 
redistribution of my work, but I would like to know if you put it on 
a website or the like. My site is down for rebuilding, but sooner or 
later the old stuff should reappear at   omeyer.gmxhome.de
  Onno Meyer, 2008-12-22

Multirole Submarine v1.0 (TL9)
  Copyright 2008 by Onno Meyer

  The Multirole Submarine was written for games in the not too distant 
future, when humanity starts to exploit the ocean depths as completely 
as it used the surface of Earth in the 20th century.
  Possible missions include research, support for isolated ocean-floor 
settlements, or combat and law enforcement. The laboratory section can 
be reconfigured, from oceanography to underwater archeology. 
  The Multirole Sub should stay in deep water, so the dry dock usually 
contains at least one submarine shuttle in addition to little research 
and repair DSVs. For patrol or combat missions, fighter subs could be 
carried instead. The cargo capacity is limited, 50 tons of provisions 
and 50 tons of supplies.
  The boat has forward and aft torpedo rooms, each with two 500mm tubes 
for anti-ship torpedoes and four 200mm tubes for anti-torpedo torpedoes, 
and a midships missile bay with MIRVed ballistic missiles (four megaton 
warheads each) and anti-ballistic missiles. Eight point defense lasers 
provide close-in defense.
  The sub has quarters for 200 crew and passengers, and a life support 
capacity of twice that. Usually there are around 100 core crew and 100 
visiting scientists and family members (including the usual precocious 
brat). Alternatively, the Multirole Submarine could embark marines or 
commando troops.
  A full load of ammunition and provisions is $58,550,000. 

Subassemblies: Body +10. 
Powertrain: Four 225,000-kW hydrojets; two 500,000-kW experimental 
  fusion reactors; 48,000,000-kWs advanced batteries.
Occ: 40 bridge RCS, 100 bunks, 40 double cabins, 15 single cabins, 5 
  single luxury cabins.
Cargo: 5,000 cf.

Armor      F        RL         B         T         U
Body:   4/2,750   4/2,750   4/2,750   4/2,750   4/2,750

Weaponry
Four 200mm Torpedo Tubes [Bod:F] (200 torpedoes total).
Four 200mm Torpedo Tubes [Bod:B] (50 torpedoes total).
Four 300mm ABM Launchers [Bod:T] (100 missiles total).
Two 500mm Torpedo Tubes [Bod:F] (40 torpedoes total).
Two 500mm Torpedo Tubes [Bod:B] (10 torpedoes total).
Ten 500mm SLBM Launchers [Bod:F] (1 missile each).
Two 600-kJ PD Lasers [Bod:F] (unlimited shots) +2.
Two 600-kJ PD Lasers [Bod:R] (unlimited shots) +2.
Two 600-kJ PD Lasers [Bod:L] (unlimited shots) +2.
Two 600-kJ PD Lasers [Bod:B] (unlimited shots) +2.

Equipment:
  Body: Two extreme range radios with scramblers; two very long range 
VLF radios with scramblers; long range ELF receiver with scrambler; 12 
long range laser communicators; two medium sonar communicators with 
scramblers; communications buoy; 30' periscope with 100-mile AESA, LPI, 
and 100-mile thermograph; two 1,000-mile AESAs, LPI; two 20-mile active 
sonars; 60-mile passive sonar; 160-mile towed sonar; 100-mile MAD; four 
sets of precision navigation instruments; two IFF; two sonar IFF; four 
inertial navigation systems; two sonar positioning systems; 20 HUDWACs 
with pupil scanners; four advanced laser detectors; 100 sonar decoy 
dischargers; three C6, hardened macroframes; 100 terminals; ten full 
fire suppression systems; five science labs; two complete workshops; 
four operating rooms; five-bunk brig; two 8-man airlocks; 4,000-cf dry 
dock; two 200-man full life systems; 50,000 man-days of provisions. 
External: Basic emission cloaking; basic sound baffling; basic stealth.

Statistics
Size: 600'x100'x50'    Payload: 420 tons       Lwt.: 25,420 tons
Volume: 1,000,000 cf   Maint.: 129 man-hours   Price: $726,623,750

HT: 6.   HPs: 360,000 Body

uSpeed: 80   uAccel: 6   uDecel: 0.5(4)   uMR: 0.1   uSR: 6
Submerged draft 132'. Crush depth 6,624 yards.

Design Notes
  Body is 1,000,000 cf, with heavy compartmentalization and advanced 
submarine lines. Structure is extra-heavy, expensive, and submersible. 
Armor is expensive metal. Computerized controls with duplicate maneuver 
controls and duplicate diving controls. 2,418 cf of empty space. Empty 
weight is 50,000,000 lbs. 

Weapon              Weight Volume Cost     Power WPS    VPS CPS       TL
200mm Torpedo Tube   1,600  32     $90,000   -      400   8    $47,000 8
300mm ABM Launcher   4,000  80    $210,000   -    1,000  20   $220,000 8
500mm Torpedo Tube   8,000 160    $410,000   -    2,000  40   $230,000 8
500mm SLBM Launcher 10,000 200    $255,000   -   10,000 200 $1,300,000 8
600-kJ PD Laser        200   4     $24,000 9,600   -     -       -     8    

Weapon        Guid       Malf. Type Damage              SS Speed Max/IFR   End RoF  Skill
200mm Torpedo PSH/WG     crit. exp. 6d*250              25    80     4,800  60 2    16/OG
300mm ABM     BPRH       crit. exp. 6d*844[24d]         30 1,600   148,800  93 1    20
500mm Torpedo PSH/ASH/WG crit. exp. 6d*104(10)          30    80    16,320 204 1    20/16/OG
500mm SLBM    IG         crit. exp. 4 at 12d*2,000,000,000 30 3,200 4,800,000 300 1/25   -

Weapon          Ammo Malf. Type Damage SS Acc 1/2D[*] Max[*] RoF
600-kJ PD Laser  -   ver.  imp. 9d     20 25  10,000  20,000 8*
  [*] Nominal underwater range; actual range may vary.

  The vehicle uses the design rules from Vehicles [second edition, third 
printing, Dec 2004 errata], VXi and VXii (the armor volume rule) with 
the text format from Vehicles Lite. The design decisions assume that the 
ladar detection rules from TS:Under Pressure are used.


Next Week: A lower-TL sub.