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The first, most basic, and most essential component of any vessel is it's hull. A vessel may be single or double hulled.

Double hull vessels are able to withstand more damage since hull breaches must go through two separate hulls. Most vessels larger than size 4 are Double Hulled, and have their skeletal structure between the hulls.


Armor plating is the last line of defense to prevent hull damage. There are 2 types of Armor Plating that can be selected. Armor increases the overall mass of the ship / base according to it's thickness and size of hull. A hull can have both types of Armor, but weight for is added for both.

  • (Ex: 10 CM HD and 10 CM Ablative on a size 1 ship would increase the weight by 200 tons)

Adding / Removing armor does not have a Structural Cost

High Density

  • High Density Armor protects against direct physical attacks on the hull such as debris impact.
  • The hull itself and the SIF provide automatic resistance to some damage, but HD Armor increases the damage resistance.
Thickness Protection Weight (x 100 tons)
1 CM 10% 1 x size
2 CM 15% 2 x size
3 CM 20% 3 x size
4 CM 25% 4 x size
5 CM 30% 5 x size
6 CM 35% 6 x size
7 CM 40% 7 x size
8 CM 45% 8 x size
9 CM 50% 9 x size
10 CM 55% 10 x size


    • This is NOT the futuristic regenerative type used by Voyager!
  • Developed in the late 2360's, Ablative Armor protects against heat attacks on the hull such as those caused by beam weapons (Phaser / Disruptor, etc...) by distributing the energy around the hull evenly.
  • When an attack exceeds the KiloJoule rating from the weapon it begins to burn off the Armor at 1 CM / Sec per 10,000 KJ over the rating.
Thickness Rating (KJ) Weight (x 100 tons)
1 CM 20,000 1 x size
2 CM 40,000 2 x size
3 CM 60,000 3 x size
4 CM 80,000 4 x size
5 CM 100,000 5 x size
6 CM 120,000 6 x size
7 CM 140,000 7 x size
8 CM 160,000 8 x size
9 CM 180,000 9 x size
10 CM 200,000 10 x size
  • Example: 10 CM of Ablative Armor is able to withstand a 2 sec. burst from a Type V Phaser, but if the beam is sustained it would begin to burn off the Armor at a rate of 0.5 CM / Sec. See Phasers for power ratings of each Type.

Borg Regenerative Armor

An advanced version of both Ablative and High Density armor from the 25th Century. USS Voyager had this armor retrofitted in violation of Federation Temporal Affairs directives. The armor in part enabled it to withstand Borg attacks, and allowed the vessel to return to UFP space. Upon returning the ship was locked away by Starfleet Intelligence / Corps of Engineers to study the 25th Century Borg technology.

Very little of the advanced equipment has been approved for use on other Starfleet vessels!

Regenerative Armor requires 'armor generators' located in specific points across the hull of a vessel. When activated the armor will 'grow' in specific patterns to cover the entire surface area - allowing openings for weapon and propulsion ports of course.

  • Protection:

The Regenerative Armor provides 80% protection from physical impact damage, and 500,000 KJ of beam weapon damage.

  • Weight:

Although lighter HD and Ablative combined; when equipped the Armor increases the displacement of the vessel by 1,500 x size.

Drawbacks / Limitations

  • When activated the Generators must draw at least 50 TJ / second x vessel size from the Warp Core (thus to cover a size 6 Intrepid Class takes 300 TJ - more than half of the output of the Warp Core).
  • The armor takes 10 seconds / vessel size to encompass the vessel (for the Intrepid it would take approximately 1 minute).
  • Strain on propulsion engines (RCS and Impulse) is increased due to rapid weight change. Both engines have their effectiveness (I.E. maneuverability) reduced by 50%, and 'burnout/replacement' times increased by 2 hours for every 1 hour the armor is deployed (engines will burn out twice as fast since they weren't designed for the sudden changes in mass).
  • Fuel usage increased by 10% when armor is deployed.

Vessels may be specifically constructed to utilize the armor and eliminate the problem of Engine strain/burnout, and may have a specific power core dedicated to armor deployment - however the need for a ship permanently equipped would be limited to Warships which is contrary to Starfleet's peaceful charter. The Federation Council has therefore prohibited use of Borg Regenerative Armor to specific "single-mission" use and must thereafter be removed from the vessel.

Atmospheric/Planetfall Capability

All ships are able to spend a short time in upper planetary atmospheres while using Shields, however to go deeper or land on planetary surfaces modified hull is required with additional shielding and landing struts as well as higher Structural Integrity Field to withstand gravitational forces.

Ramming Hull

A vessel may also be reinforced to enable it to ram other vessels or objects. The specialized Ramming Hull is a combination of High Density Armor plating, added skeletal framework, and higher Structural Integrity Field in the vessel, as such a Ramming Hull increases the vessel weight by 25% of it's original mass/displacement.