Chassis
The Chassis of a Support Vehicle, Combat Vehicle or BattleMech is what the rest of it is built around or inside. Similar to the Human Skeleton a units chassis has a major influence on the shape, structure and form that a unit will take.
Internal Structure
High Technology - Age of War and Succession Wars Technology
Generally, Standard Type Chassis consisted of a Foamed Alluminum Core covered with various composite materiels, wrapped in silicon-carbide fibers, and Clad in Titanium-Alloyed Steel [1]. Standard Internal Structure can be formed on a planets surface without requireing (expensive and vulnerable) orbital facilities.
Endo-Steel
Advanced Technology - Star League and Post-3050 Inner Sphere Technology
Hyper-Advanced Technology - Clan and post 3065 Inner Sphere Technology
Endomorphic-Steel Chassis are formed in orbital facilities. The Alluminum Core is foamed in Zero-G and is larger than that of Stanndard IS, covered with various composite materiels that are mixed and hardened in zero-G, and Clad in a Titanium-Steel Alloy formed in Zero-G. [2].
Manufacturing
Chassis are manufactured on the following planets: