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GURPS Vehicles 2nd Edition Additions
MA Lloyd (malloy00@io.com) 9 August 1998
Modifications and Additions to
Chapter 3:  Armaments
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These are difficult to check not knowing if the design elements have been
changed from the playtest versions, but I think:
p42  Wt.  This weight to volume relationship breaks down for mechanical 
     artillery.  As long as it is on deck or small enough its motion can
     arc through the space normally occupied by its loading crew it doesn't 
     matter, but if you are mounting large engines in enclosed spaces allow
     weight/1 cf for the various parts of a engine to move through when 
     firing rather than weight/20 cf.
p43* Mechanical Artillery and Guns Table.  The 105mm howitzer Damage entry
     6d×9 should be 6d×9[10d].
p43  TL5 254mm Naval Gun.  CPS $370
     TL6 7.62mm MG.  VPS 0.00037
     TL7 20m Gatling.  Power should be 3.2kW
     TL7 105mm Tank Gun.  1/2D rounds to 2900.
     TL7 120mm Tank Gun.  Acc 17  WPS 73  VPS 0.73  CPS $1175
     TL8 15mm Chain Gun.  Cost $5700  CPS $1.6
     TL9 80mm Mortar.  WPS 14.4  VPS 0.14  CPS $260 (low power, rocket, HEDP)
p44  TL9 Launcher.  $469
     TL9 SRGM.  Scan 15 (cheap TL9 OG).  End 5.0.  Max 2000.
     TL9 Gatling Laser.  1/2D 8800  Max 26000  Acc 22
     TL12 Heavy Fusion Gun.  SS 25
p45  Links.  It costs $50 to modify a weapon to work in a link.  A modified
     weapon can be part of any number of different links.
p46  Cyberslave mounts can be universal rather than casement.
p46  Weapon Bays.  Raise the volume to 0.05 cf per pound to include enough
     volume for the carried weapons.
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Armaments
p45a Contact Weaponry
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A vehicle with arms (p65) can use standard melee weapons, and a striker arm
alone can inflict its normal swing damage (approximately 1 + (ST/10) dice).
For $500 ($750 if retractable) a striker arm can be equipped with a blade
that converts damage to Cutting.  It is possible to electrify the surface of 
an arm to produce a touch weapon, see Electrified Surface (p93).  Other 
contact weapons include Rams (p94), Contact Beams (p123a) and Bores (p67,
these inflict 0.01d x cf/hr cutting per turn to anyone caught under them).
See also Collisions (p157), stomping (p158), overruns (p159), Vehicular
Body Combat (p188) and ROp20, MEp46, MEp68 and MEp110.
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Armaments
p45a Recoil Reduction
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Inertia Damper (TL13+)  a field that reduces a weapon's recoil.  Weight is 
20% of the weapon weight (minimum 0.2 lbs), cost is $200 and power is 
0.00005kW per pound of weapon weight.  Half the momentum per shot of heavy 
weapons, or the recoil penalty of hand weapons (which will also lower 
Min ST, see p126).  It also provides Full Stabilization.
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Armaments
p46a Laser Periscope
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A periscope tube can be attached to a laser weapon to allow it to fire from
some other location.  Usually the laser is placed in the body and the periscope 
built into an arm, pod or turret.  This allows fire without exposing the body 
and usually a better firing arc.  Periscope mirrors can handle visible, IR, 
UV or rainbow lasers at TL8, X-ray and gamma-ray periscopes are not available 
until the invention of deflector or stasis fields.  The periscope has 10% of
the weight and volume, and 20% of the cost of the laser it modifies.
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Armaments
p46a Telegate Periscope
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Telegates (TL16, pUT117) can allow a weapon to fire from a location other
than where it is mounted.  Indeed the weapon need not be on the vehicle to
fire through the gate as long as it is within the gate range (10,000 miles
by default).  Small telegate drones linked to a huge fixed weapon system
are the logical outcome.  Each end of a telegate weighs 20 lbs, costs 
$100,000 and consumes 100 kW while held open.