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Weapon & Equipment Information
General Details
Name:  Ferro-Fibrous
Type (Category):  Armor (Core)
Reference:  TechManual (p. 205)

Description:
A more advanced form of combat armor, ferro-fibrous (and its aerospace/spacecraft analogue, ferro-aluminum) is a military-grade armor significantly lighter than standard armor. Ferro-fibrous achieves its lightweight properties through the wider use of diamond fiber filaments throughout the ceramic and steel layers (standard armor does not incorporate a diamond weave in the steel layer). While this makes ferro-fibrous far more bulky, the weight savings afforded by this armor type for the same level of protection can enable units to mount more weapons and equipment. Of course, this capability must be balanced against the limited internal space left after its installation.

Limited by design (and economics) to military vehicles and BattleMechs, ferro-fibrous armor is available in a variety of popular brand names including Durallex, Kallon Unity Weave, Lexington Limited High Grade and StarGuard.

Game Rules:
Armor is considered structural and cannot be “deactivated” during combat through engine shutdown or pilot/crew injury. Critical hits against any type of ferro-fibrous armor (standard, light or heavy) critical slot have no effect and should be re-rolled.
Unit Type Availability
BattleMechsIndustrialMechsCombat Vehicles
Inner Sphere Data (BattleMechs)
Prototype Date:  
Production Date:  2571
Extinction Date:  2810
Recovery Date:  3040

BattleMech Specific Construction Rules
May be mounted on Inner Sphere units in accordance with the following construction rules:
 Requires a total of fourteen critical slots to be allocated across all locations
 If used as patchwork armor, two critical slots must be allocated in each location designated

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
– (–)
– (–)
E
D-F-D-C
20,000xAT
*
14*
x1.0
* See rules for this equipment
AT = Armor Tonnage

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
2571
2809
Standard
3040
Standard

MegaMek Output → Critical Slot:  Ferro-Fibrous
Record Sheet Output → Critical Slot:  Ferro-Fibrous
Record Sheet Output → Armor Diagram:  FF
Clan Data (BattleMechs)
Prototype Date:  ~2820
Production Date:  ~2825
Extinction Date:  
Recovery Date:  

BattleMech Specific Construction Rules
May be mounted on Clan units in accordance with the following construction rules:
 Requires a total of seven critical slots to be allocated across all locations
 If used as patchwork armor, one critical slot must be allocated in each location designated

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
– (–)
– (–)
F
X-E-D-C
20,000xAT
*
7*
x1.0
* See rules for this equipment
AT = Armor Tonnage

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
~2820
~2824
Experimental
~2825
Standard

MegaMek Output → Critical Slot:  Ferro-Fibrous
Record Sheet Output → Critical Slot:  Ferro-Fibrous
Record Sheet Output → Armor Diagram:  FF