the shape of things to come

structure circles in that location, including any armor placed
in rear locations (see Add Armor, p. 72). All head locations may
receive a maximum of 9 armor points.
Technology Base: Standard IndustrialMech internal structure
is equally available to IndustrialMechs of Clan or Inner
Sphere tech bases. Remember that endo-steel and standard
BattleMech internal structures are not allowed for Industrial-
Mech designs. (Using such technologies eff ectively makes the
IndustrialMech a BattleMech instead.)
Four-legged: IndustrialMechs built as quads have four legs,
rather than two arms and two legs. The number of internal
structure points for all four legs is thus determined by the Legs
(Each) column appropriate to the IndustrialMech’s tonnage.
The Arms (Each) column has no bearing on quads.
Space: IndustrialMech internal structure does not occupy
any critical spaces. Because IndustrialMechs may use no
other internal structure types that occupy critical slots, establishing
the IndustrialMech’s structure has no impact on the
Critical Hits Table.
David’s CattleMaster weighs
25 tons. With no internal structure
type available beyond Industrial-
Mech Standard, he notes the
weight of said structure will be 5
tons (20 percent of 25 tons = 25 x
0.20 = 5 tons). This leaves 20 tons
left over so far (25 – 5 = 20). No slots for internal structure
need be allocated to the Critical Hits Table. After
consulting the BattleMech Internal Structure Table on
p. 47, David blacks out all extraneous circles from the
Internal Structure Diagram on his CattleMaster’s
Record Sheet, leaving only 8 open circles in the center
torso, 6 circles each in the left and right torsos, 6 circles
in each leg and 4 in each arm. (As all heads receive 3
internal structure points automatically, David leaves
the head’s internal structure alone.)
Edward’s Buster weighs 50
tons, providing an internal structure
weight of 10 tons, which he
determined by consulting the
BattleMech Internal Structure
Table and multiplying the weight
of standard BattleMech structure
by 2 (2 x Standard BattleMech
Internal Structure at 50 tons = 2 x 5 tons = 10 tons).
This weight provides 16 internal structure points in the
center torso, 12 points each in the left and right torsos,
12 points in each leg and 8 points in each arm. Ed
blacks out all excess internal structure circles in those
locations on his Buster’s Record Sheet. The Buster has
40 tons of unassigned weight so far (50 – 10 = 40 tons).
Geoffrey’s Uni weighs in at
70 tons, so its internal structure
will weigh 14 tons (20 percent of
70 = 70 x 0.2 = 14; 2 x Standard
BattleMech Internal Structure
at 70 tons = 2 x 7 tons = 14 tons).
Because the Uni is a quad, he
notes that it will receive 22
internal structure points in the center torso, 15 each
in the left and right torsos, and 15 in each of the
IndustrialMech’s four legs. On the record sheet’s Internal
Structure Diagram, Geoff blacks out all the excess
circles in those locations. The Uni has 56 unspent tons
remaining (70 tons – 14 tons = 56 tons).
STEP 2: INSTALL ENGINES
AND CONTROL SYSTEMS
The second step in IndustrialMech design is the installation
of the ’Mech’s engines and control systems. This step
establishes the key factors in the IndustrialMech’s mobility,
including the size and performance of its engine, any necessary
fuel supply, the mass of the gyroscopes that keep it
upright and whether or not the design is capable of jumping
movement. Also determined in this step is the nature of the
IndustrialMech’s cockpit systems and any fi re control its pilot
may use during operations.
INSTALL ENGINE
All IndustrialMechs constructed under these rules may carry
one engine to power their movement, equipment, weapons
and other integral components. The relative output of this
power plant is measured by the IndustrialMech’s Engine Rating,
which is directly determined by the ’Mech’s total weight
and desired speed in the same manner as for BattleMechs.
As with BattleMechs, the formula for determining an IndustrialMech’s
Engine Rating is to multiply the ’Mech’s tonnage
by its desired Walking MP. The IndustrialMech’s Running MP is
also computed at this time, by multiplying its Walking MP by
1.5 and rounding up to the nearest whole number.
Note that under these rules, no IndustrialMech may be constructed
with an Engine Rating below 10 or above 400.
ENGINE RATING
AND MOBILITY FORMULAS
Engine Rating = ’Mech Tonnage x Desired Walking MP
Running MP = Desired Walking MP x 1.5 (round up)
INTRODUCTION
CONSTRUCTION
BASICS
BATTLEMECH
CONSTRUCTION
INDUSTRIALMECH
CONSTRUCTION
PROTOMECH
CONSTRUCTION
COMBAT VEHICLE
CONSTRUCTION
SUPPORT VEHICLE
CONSTRUCTION
CONV. INFANTRY
CONSTRUCTION
BATTLE ARMOR
CONSTRUCTION
AEROSPACE UNIT
CONSTRUCTION
WEAPONS AND
HEAVY EQUIPMENT
INFANTRY WEAPONS
AND EQUIPMENT
COSTS AND
AVAILABILITY
BATTLE VALUE
INDEX
RECORD SHEETS
67