Editing Titanium-A armor

{{Era|UNSC|HCW|Post}}

'''Titanium-A armor''' is the most common form of battle plating used by the [[United Nations Space Command|UNSC]] on its [[warship]]s. It is composed of high-grade [[Titanium]]-50<ref>'''[[Halo: Ghosts of Onyx]]''', ''page 185''</ref> that is specially strengthened at the molecular level,<ref name="enc315">'''[[Halo Encyclopedia]]''', ''page 315''</ref> which implies alloying with other elements. It is usually greyish in color, and at least in the case of destroyers is embedded with thermal superconducting radiators.ref>'''[[Halo Mythos]]''', ''page 83''</ref> Following the [[Human-Covenant War]], some UNSC military vessels received [[energy shielding]] to allow the ships to absorb more damage.<ref>'''[[Spartan Ops]]''', ''[[Departure|S1E1 Departure]]''</ref> Like the [[Magnetic Accelerator Cannon]], Titanium-A armor plating saw advances and widespread use due to the [[Insurrection]].<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', "[[The Impossible Life and the Possible Death of Preston J. Cole]]", ''page 457''</ref>

[[File:Reach 596390 Medium.jpg|thumb|250px|The {{UNSCShip|Savannah}}'s hull holding its own against the ''[[Ardent Prayer]]'', despite being severely outgunned.]]

Titanium-A has numerous uses throughout the UNSC due largely to titanium being lightweight and extremely strong, with a high tolerance to heat. Its primary use is armor for ships. Typically, as much as one-third of a standard UNSC military vessel's mass is the Titanium-A plating.<ref name="enc315"/> [[UNSC frigate]]s have sixty centimeters of plating on their hull, [[UNSC destroyer]]s have up to two meters of plating and [[UNSC carrier]]s have thirty-six centimeters of Titanium-A plating.<ref>'''Halo Encyclopedia''', ''page 259''</ref> {{Class|Marathon|heavy cruiser}}s have 191 centimeter-thick layers of Titanium-A armor, allowing them to sustain far greater damage.<ref name="EVG">'''[[Halo: The Essential Visual Guide]]''', ''page 42''</ref> [[D77-TC Pelican]]s<ref>'''[[Halo: First Strike]]''', ''page 18''</ref> and [[GA-TL1 Longsword]]s<ref>'''Halo: First Strike''', ''page 40''</ref> are both covered in Titanium-A armor to provide additional protection in dogfights. [[Slipstream space probe]]s are almost solid Titanium-A to allow them to survive the stresses of frequent [[slipspace]] entries and exits.<ref>'''Halo: First Strike''', ''page 356''</ref> [[Long Range Stealth Orbital Insertion Pod]]s are given additional Titanium-A plating to allow the pods to be launched from slipspace.<ref>'''Halo: Ghosts of Onyx''', ''page 13''</ref> [[Refit station]]s<ref>'''[[Halo: The Fall of Reach]]''', ''page 156''</ref> and construction platforms, such as [[Station Delphi]], are essentially slabs of Titanium-A armor plating.<ref>'''Halo: Ghosts of Onyx''', ''page 51''</ref>

The UNSC uses Titanium-A for construction of [[military base]]s as well, to make them less susceptible to destruction. Underground facilities such as [[HIGHCOM Facility Bravo-6]], [[CASTLE Base]]<ref>'''Halo: First Strike''', ''page 125''</ref> and [[Camp Hathcock]] used Titanium-A armor in their superstructures. Even lockers used by UNSC personnel are reinforced with a centimeter of Titanium-A armor plating.<ref>'''Halo: First Strike''', ''page 55''</ref> [[Eridanus Secundus]], a [[United Rebel Front]] [[asteroid]] base located in the [[Eridanus system]], was reinforced with a layer of Titanium-A armor which also helps deflect UNSC and Covenant sensors.<ref>'''Halo: First Strike''', ''page 309''</ref>

[[File:Energy Projector.jpg|thumb|left|250px|The {{UNSCShip|Grafton}} is destroyed by a single [[energy projector]] shot.]]

Prior to the [[Human-Covenant War]], a single [[Magnetic Accelerator Cannon]] slug was capable of penetrating any vessel's Titanium-A armor plating.<ref>'''[[Halo: Contact Harvest]]''', ''page 119''</ref> The armor took a newfound importance after the beginning of the Human-Covenant War: to contend with the [[Covenant]]'s [[plasma weaponry]], [[human]]s needed armor that would withstand the heat of the directed plasma. Despite its strength and resistance to heat, however, the Titanium-A plating is usually boiled away within seconds on contact with Covenant [[plasma torpedo]]es, and does not effectively dissipate the plasma. [[Energy projector]]s are able to pierce dozens of centimeters with relative ease.<ref name="enc315"/> [[Pulse laser turret]]s can reduce the hull of a {{Class|Paris|heavy frigate}} to about four centimeters in a single hit.<ref>'''Halo: The Fall of Reach''', ''page 129''</ref> Even [[Type-1 energy sword|energy swords]] can do significant damage to Titanium-A armor.<ref>'''Halo: First Strike''', ''page 94''</ref> During the [[Fall of Reach]], the {{UNSCShip|Grafton}} was destroyed by a single shot from the ''[[Long Night of Solace]]'''s energy projector.<ref>'''[[Halo: Reach]]''', campaign level ''[[Tip of the Spear]]''</ref> Despite being armored with the stronger Titanium-A3 armor, the {{UNSCShip|Infinity}}'s hull was pierced by a [[Vata 'Gajat's mercenary group|Covenant mercenary]] [[Oth Lodon station|space station]]'s glassing cannon.<ref>'''[[Halo: Escalation]]''', ''Issue 5''</ref> After three hits from the cannon, the ''Infinity'' was nearly destroyed.<ref>'''Halo: Escalation''', ''Issue 6''</ref> However, the {{UNSCShip|Savannah}} was able to hold its own for a while against the much larger ''[[Ardent Prayer]]'', despite being severely outgunned.<ref>'''Halo: Reach''', campaign level ''[[Long Night of Solace (level)|Long Night of Solace]]''</ref>

Molecularly-reinforced Titanium-A armor is typically employed alongside thick layers of elastic polymers and intermetallic laminate , allowing the host ship to mitigate both kinetic and energy-based attacks. The space between the armor plates  is filled with shock-hardening fluids an encapsulated healing agents to reduce spall from impacts and automatically seal small hull breaches.<ref>'''[[Halo: Warfleet – An Illustrated Guide to the Spacecraft of Halo|Halo: Warfleet]]''' - ''pg. 19''</ref> Titanium-A armor plating can be layered with [[tungsten]] for a radiation absorption rating of 5 and presumably grant greater protection against [[plasma]] weaponry.<ref>'''Halo: Evolutions - Essential Tales of the Halo Universe''', "The Impossible Life and the Possible Death of Preston J. Cole", ''page 475''</ref> Unlike the Covenant's [[nanolaminate hull plating]], Titanium-A plating is not effective during direct collisions with other vessels. After a direct collision with [[Unidentified CPV-class heavy destroyer|a ''CPV''-class heavy destroyer]], the {{UNSCShip|Spirit of Fire}} was heavily damaged, while the destroyer was seemingly unharmed.<ref>'''[[Halo Wars]]''', campaign level ''[[Repairs]]''</ref> When the destroyer {{UNSCShip|Iroquois}} collided with a [[Covenant stealth ship]], the ''Iroquois'' lost all two meters of Titanium-A plating, although it did succeed to disabling the Covenant vessel.<ref>'''Halo: The Fall of Reach''', ''pages 176-177''</ref>

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Titanium-A3 is a variant of Titanium-A battle plate developed by [[ONI]]'s [[Materials Group]]. Like Titanium-A, it is chemically altered on the molecular level to produce a stronger plate for ship hulls. It has only been noted to be used on the {{UNSCShip|Infinity}}, whose hull is composed of 4.9-meter-thick Titanium-A3 battleplate.<ref>'''[[Halo 4 Limited Edition]]''', ''[[Infinity Briefing Packet]]''</ref>

File:ApexBattleImage.png|The {{UNSCShip|Spirit of Fire}} is heavily damaged by a collision with a Covenant [[CPV-class heavy destroyer|destroyer]].

File:ArabiaVostok.png|Two ''Charon''-class frigates hulls are easily destroyed by plasma turrets.