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- The Timber Wolf/Mad Cat as originally depicted in Technical Readout: 3050 differed slightly from that present in later editions such as Technical Readout: 3050 Revised; the differences are due to changes in the official rules on constructing BattleMechs. Under the original rules, elements of 'Mech construction such as the engine and internal structure could be rounded off to the quarter-ton; this was subsequently changed, with rounding limited to half-ton increments. The original Timber Wolf/Mad Cat mounted a 375 XL engine weighing 19.25 tons and had an Endo Steel internal structure weighing 3.75 tons. When the rule systems were revised, the weight of each component increased to 19.5 and 4 tons each respectively; to compensate for the increase in weight the available Pod Space was reduced to 27.5 tons. This necessitated the following changes to the depicted configurations:[35][36]
- -Prime: A single ER Small Laser mounted in the left torso of the original Prime configuration was removed;
- -A: The number of Double Heat Sinks mounted in the left arm was reduced from 3 to 2, although the number in the right arm remained unchanged;
- -B: A single ER Small Laser mounted in the center torso was removed;
- -C: A single ER Small Laser mounted in the center torso was removed;
- -D: The amount of SRM ammunition carried in the left torso was reduced from two tons to one ton, and a single ER Small Laser was added to the center torso.
The construction rules changed at some point, and the mech's loadouts changed slightly to compensate for the changed tonnage.