[Vehicle] Tachikoma, rough draft

In a PBeM I play, I've managed to have a Tachikoma (
http://en.wikipedia.org/wiki/Tachikoma ) introduced as a player-run
NPC... and started wondering how much such a thing would weigh, how
far it could jump, and so on. As it just so happens that I happen to
have a building system designed to come up with such details, I tried
building one in GVB.

I'm sure there are a number of tweaks and refinements that would make
for a better version, so I'm posting my first draft here, and
requesting comments and criticism.

Notes: One ability of theirs that isn't included in GVB, but is in
GURPS:Robots, is the 'sticky feet' that can adhere to any given
surface. The odd number of kJ in the batteries is to give a round
number for weight; and given the operating endurance, I'm still
debating whether to throw in superscience power cells. Armor DR is
still wide open. GVB lacked a cable jack, so I used a 'misc equipment'
add-on to fudge one in.


-----8<-----

TL8 Tachikoma

Crew: 1 total. 1 crew station covering vehicle maneuvering system, 2
communicators, 2 navigation aids, targeting system, countermeasure.

Subassemblies: Vehicle +2, Thorax +2, Abdomen [Thorax] +1, Left Arm
[Thorax] -2, Right Arm [Thorax] -1, Central Arm-Mount [Thorax] -1,
4xLegs +0, Wheels [4xLegs] -1.

P&P: two 181,818-kJ advanced batteries [Thorax], 5-kW legged
drivetrain (no access space) [4xLegs], 10-kW blueprinted wheeled
drivetrain (+10% blueprinting, all wheel drive; no access space)
[4xLegs].

Fuel:

Occ: cramped crew station (crashweb, g-seat) [Abdomen], 0.25 man-day
limited life support system [Abdomen]   Cargo:

Armor             F    RL   B    T    U
Thorax            4/20 4/20 4/20 4/20 4/20
Abdomen           4/20 4/20 4/20 4/20 4/20
Left Arm          4/20 4/20 4/20 4/20 4/20
Right Arm         4/20 4/20 4/20 4/20 4/20
Central Arm-Mount 4/20 4/20 4/20 4/20 4/20
Legs              4/20 4/20 4/20 4/20 4/20
Wheels            4/20 4/20 4/20 4/20 4/20

Weaponry                 Malf  Type Damage SS Acc 1/2D yds Max yds RoF TL
claw                     -     Imp. 3d     0  0   0        0       -   8
12.7mm API ammo          -     Cr   13d(2) -  14  1,100    5,100   -   8
7.62mm API ammo          -     Cr   7d(2)  -  13  780      4,100   -   8
7.62mm machinegun        Crit. Cr.  7d     17 13  780      4,100   20  8
12.7mm heavy machine gun Crit. Cr.  13d    20 14  1,100    5,100   10  8

Equipment
All: basic chameleon (-3 spotting modifier); modest emission cloaking
(-2 spotting modifier); modest stealth (-2 spotting modifier); modest
sound baffling (-2 hearing modifier); sealed; 147 sf electrified
surface.  Thorax: emergency lights/sirens; high security burglar alarm
(Skill-20); gyrobalance; two medium range radio communicators
(100-mile range; scrambler); auditory sensor (acute hearing +5,
parabolic hearing +5, infrasonic, ultrasonic); olfactory sensor (acute
smell +5, discriminatory smell, discriminatory taste); four visual
sensors (ind. focusable, night vision, 360-degree vision); inertial
compass; military GPS; radar/laser detector; standard robot brain
(complexity 4, +3 DX; compact, genius, very high capacity, neural
net); 1-cf anti-blast magazine; 500 rounds 12.7mm API ammo; 500 rounds
7.62mm API ammo; two winches (ST:60).  Abdomen: spall liner; HUDWAC
(pupil scanner, near miss indicator); computer terminal.  Left Arm:
arm motor (ST:30, extendable, rocket arm); sharp claw (retractable);
misc equipment-cable jack.  Right Arm: arm motor (ST:30, extendable,
rocket arm); sharp claw (retractable); 7.62mm machinegun (concealed).
Central Arm-Mount: 12.7mm heavy machine gun.

Statistics
Size: [LxWxH] 4'x4'x5'  Payload: 383 lbs.       Lwt.: 3,400 lbs.

Volume: 82.2 cf Maint.: 9.76 hours (9.83 mh/day)        Price: $4,195,320

HT: 12  HP: 356 [Thorax], 292 [Abdomen], 56 [Left Arm], 80 [Right Arm],
92 [Central Arm-Mount], 120 each [4xLegs], 24 each [4xWheels].
Robot Attributes: ST 264, DX 13, IQ 8, HT 12, / 356.

Legged Ground Performance: Speed Factor 13, Top Speed 20 mph, gAccel 7
mph/s, gDecel 20 mph/s, gMR 1.5, gSR 4, Ground Pressure 531 lbs./sf,
Off Road Speed 20 mph.

Wheeled Ground Performance: Speed Factor 18, Top Speed 90 mph, gAccel
4 mph/s, gDecel 15 mph/s, gMR 0.5, gSR 4, Ground Pressure 2,124
lbs./sf, Off Road Speed 30 mph.


Design Notes:
TL8 robotic extra heavy frame advanced materials (Using greater of
volume or surface area) [Vehicle].
TL8 DR 20 advanced composite [Vehicle].
Operating Duration:  2 H 10 M 34 S.
Payload Cost: $540
Vehicle Features: computerized controls, no streamlining.
Legs: improved suspension.
Wheels: quantity 4, retract into body, all wheel drive, improved
suspension, improved brakes, all wheel steering, smart, puncture
resistant.
Abdomen: total compartmentalization.
Volume: 31.3 cf [Thorax], 23.3 cf [Abdomen], 0.68 cf [Left Arm], 1.16
cf [Right Arm], 1.46 cf [Central Arm-Mount], 6.09 cf [4xLegs], 1.56 cf
[Wheels].
Area: 59.6 sf [Thorax], 48.9 sf [Abdomen], 4.64 sf [Left Arm], 6.62 sf
[Right Arm], 7.72 sf [Central Arm-Mount], 20 sf [4xLegs], 8.08 sf
[Wheels].
Empty Space: 21.3 cf [Thorax], 2.13 cf [4xLegs].
Robot Attributes: DX +3, neural net;
Legged Ground Performance:;
Wheeled Ground Performance:;

>From http://en.wikipedia.org/wiki/Tachikoma:

http://upload.wikimedia.org/wikipedia/en/2/2e/Tatikoma_B2.jpg

A spider-type multi-leg combat walker/roller tankette, equipped with
artificial intelligence.

Tachikoma are as large as an average sedan, are painted blue and have
four "eyes" fitted on the surface of their bodies. Three are on the
"head" and one is beneath the abdomen. Each eye has three pinholes,
possibly for triangulation. Tachikoma are controlled by individual
AIs, are capable of speech and generally exhibit a childish, curious,
joyful and active personality, although they are consummate
professionals in the field. They normally operate as independent units
and receive orders from human agents, but they can also be directly
piloted from a cockpit in their abdomen.

Tachikoma have four legs and two arms. They can move by walking, or
they can drive at high speed by using the wheeled footpads on each of
their four legs. They are apparently street legal (presuming no legal
exemption for Section 9). Each wheel appears to be angled and
omnidirectional, allowing the Tachikomas to move in any direction with
their holonomic drive system. Other abilities of the Tachikoma include
jumping great distances, sticking to vertical or inverted surfaces,
engaging an thermoptic camouflage mechanism, and grappling/rappelling
using their adhesive string launchers. Tachikoma maintain control of
their legs while using wheels to drive down a road, and shift their
weight around turns. They can also roll briefly on to two legs while
driving to avoid an obstacle or pass through a narrow space. To make
balance easier, they can move their heavy abdomens with a ball joint.
Their movements when walking and jumping were modelled on a jumping
spider. Almost all of the Tachikomas' physical abilities are showcased
in Episode II of Stand Alone Complex: Proof of Recklessness;
Testation.

Standard Tachikoma equipment includes a 7.62x51mm light machine gun
mounted in the right arm, a secondary weapon hardpoint in the "snout"
(usually a 50mm grenade launcher, capable of launching both explosive
and gas grenades, but which can be replaced by a six-barrelled
12.7x99mm Gatling gun), a universal cybernetic connector on an
extensible, prehensile cable in the left arm, and a built-in
thermoptic camouflage system.

----->8-----



Thank you for your time,
-- 
DataPacRat         VA3BOS
"You shall not accept any information, unless you verify it for
yourself. I have given you the hearing, the eyesight, and the brain,
and you are responsible for using them." -- Qur'an 17:36, Khalifa
translation.