Viewing Weapons & Equipment
Weapon & Equipment Information
General Details
Name:  Environmental Sealing
Type (Category):  Equipment (Other)
Technology:  Inner Sphere, Clan
Available To:  IndustrialMechs (IM)
Reference:  TechManual (p. 216)

Description:
Unlike BattleMechs, aerospace fighters, submersible vehicles and DropShips—which all incorporate this technology by design—many Support Vehicles and IndustrialMechs lack the hermetic sealing to operate in toxic environments, vacuum or even underwater. At an added cost in chassis mass, however, environmental sealing can be added to many of these units, incorporating air tanks, filters, scrubbers and airtight sealing.

This process allows for the crew cabins, cockpits and critical parts to function normally in such hostile environments, albeit at an increased cost. Even though environmental sealing protects the pilots and crews of units so equipped and enables their parts to move properly, don’t expect the likes of a Tyron 25 internal combustion engine to function when completely submerged, even with full sealing. Such engines, after all, still need to take in air to burn their fuel. Achieving full functionality irrespective of environment can only be attained by vehicles and units that are not only sealed, but whose engines also don’t need to breathe air (such as fuel cell, fission or fusion plants).

Game Rules:
IndustrialMechs with environmental sealing may enter Depth 1 Water, but cannot be fully submerged unless they incorporate both environmental sealing and a Fission, Fusion or Fuel Cell engine.

Construction Rules:
May be mounted on any available unit type with adherence to the following construction rules:
 May mount up to one per unit
Inner Sphere Data
Prototype Date:  ~2300
Production Date:  2350
Extinction Date:  —
Recovery Date:  —

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat (Aero)
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
0 (0)
– (–)
– (–)
C
C-C-C-C
225xTT
*
*
* See rules for this equipment
TT = Total Unit Tonnage

Additional Construction Rules
The following construction rules extend the ones previously listed and are applicable for this technology base:
 Requires one critical slot to be allocated in each of the Arms, Head, Legs, and Torsos

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
~2300
2349
Experimental
2350
Standard

ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short
Medium
Long
Extreme
Special Abilities
Environmental Sealing

Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
 Environmental Sealing (SEAL)
A unit with this special ability may operate in hostile environments (including underwater, vacuum, and so forth). Aerospace units, ProtoMechs, combat vehicles, and support vehicles built as submarines are automatically treated as if they have this ability.

MTF Output → Critical Slot:  Environmental Sealing
PDF Output → Critical Slot:  Environmental Sealing
Clan Data
Prototype Date:  ~2300
Production Date:  2350
Extinction Date:  —
Recovery Date:  —

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat (Aero)
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
0 (0)
– (–)
– (–)
C
C-C-C-C
225xTT
*
*
* See rules for this equipment
TT = Total Unit Tonnage

Additional Construction Rules
The following construction rules extend the ones previously listed and are applicable for this technology base:
 Requires one critical slot to be allocated in each of the Arms, Head, Legs, and Torsos

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
~2300
2349
Experimental
2350
Standard

ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short
Medium
Long
Extreme
Special Abilities
Environmental Sealing

Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
 Environmental Sealing (SEAL)
A unit with this special ability may operate in hostile environments (including underwater, vacuum, and so forth). Aerospace units, ProtoMechs, combat vehicles, and support vehicles built as submarines are automatically treated as if they have this ability.

MTF Output → Critical Slot:  Environmental Sealing
PDF Output → Critical Slot:  Environmental Sealing