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. The files at omeyer.gmxhome.de are down until
I fix the automatic PDF generation, which should be one of these
days - see sourceforge.net/projects/gurpsml
Onno Meyer, 2012-01-02
Orbital Defense Platform Mk.III v1.0 (TL10)
Copyright 2012 by Onno Meyer
The Orbital Defense Platform could be used in games where space travel
is common, and space defenses are a normal sight in orbit, or perhaps as
a Sword of Damocles hanging over a post-apocalyptic setting -- who knows
how failing systems will interpret their rules of engagement?
The Platform was constructed around a spinal railgun, to engage ships
in orbit and point targets on the surface, with three missile launchers
and three point defense gatlings as secondary armament. She has room for
maintenance crews, and even a small cockpit, but usually the Platform is
operating under remote or robotic control. Most systems are shut down to
minimize the heat signature, and to reduce the maintenance requirements,
until the Orbital Defense Platform is activated for battle.
A full load of ammunition costs $10,038,960. It takes 58 seconds to
recharge the power of one 140mm shot.
Subassemblies: Body +6, three full-rotation Turrets +2.
Powertrain: 100,000-lb. super reactionless thruster; 60,000-kW fusion
reactor; 50,400,000-kWs rechargeable power cell.
Occ: 2 bridge RCS, 2 bunks.
Armor F RL B T U
All: 4/500 4/500 4/500 4/500 4/500
Weaponry
140mm Railgun [Bod:F] (100 rounds) +2.
Three 25mm Gatling Railguns [Tur1-3:F] (1,400 rounds each) +2.
Three 240mm Missile Launchers [Bod:F] (10 missiles each) +2.
Equipment:
Body: Full stabilization for 140mm Railgun; two very-long-range radios
with scramblers; three very-long-range laser communicators; 5,000-mile
AESA, LPI; 5,000-mile PESA; 5,000-mile radscsanner; two sets of
precision navigation instruments; three IFF; three inertial navigation
systems; deceptive jammer, rating 12; ten decoy dischargers; C8
hardened, robotic macroframe; two terminals; full fire suppression
system; 1-man airlock; 2-man full life system. Turrets: Full
stabilization and universal mounts for 25mm Gatling Railguns; 100-mile
PESAs. External: Radical emission cloaking; radical stealth; instant
chameleon; radiation shielding.
Statistics
Size: 150'x15'x15' Payload: 10 tons Lwt.: 100 tons
Volume: 5,000 cf Maint.: 24 man-hours Price: $25,755,350
HT: 12. HPs: 12,000 Body, 600 each Turret
sAccel: 0.5 G sMR: 0.5
Design Notes
Body is 4,820 cf. Turrets are 60 cf each. Structure is extra-heavy,
expensive, robotic, with heavy compartmentalization. Armor is expensive
laminate. Sealed. Computerized controls. 660.92 cf of empty space. 100
rounds 140mm APFSDSDU, 4,200 rounds 25mm Beehive, and 30 240mm missiles
are stored in the body. Empty weight is 180,000 lbs.
Weapon Weight Volume Cost Power WPS VPS CPS
TL
140mm Railgun 24,000 480 $2,400,000 1,500,000 67 0.67
$9,600[1] 10
25mm Gatling Railgun 1,500 30 $170,000 236,000 0.39 0.0039
$18.8[2] 10
240mm Missile Launcher 1,600 32 $22,500 neg. 400 8
$300,000[3] 10
Ammo Notes: [1] APFSDSDU. [2] Beehive. [3] Stealthy 240mm SIM.
Weapon Ammo Malf. Type Damage SS Acc 1/2D Max RoF
140mm Railgun APFSDSDU ver. cr. 6d*196(3) 30 20 24,000 46,500 3*
25mm Gatling Railgun Beehive ver. imp. 11d+1 25 18 6,800 17,000 80*
Weapon Warhead Guid Malf. Type Damage SS Speed End RoF
Skill
240mm Space Intercept Missile nuclear IIRHMU crit. exp. 12d*2B 25 50 G 20 1
27
The vehicle uses the design rules from Vehicles [second edition, third
printing, December '09 errata] and VXii (including the armor volume
rule) with the text format from Vehicles Lite.
Next Week: An apocalyptic 'dozer for Johannes.
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