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UNSC frigate

Production information
Manufacturer	UNSC
Technical specifications
Engine unit(s)	Deuterium nuclear fusion reactor
Slipspace Drive	Shaw-Fujikawa Translight Engine
Shielding	Yes (Post-war)
Hull	60 centimetres (2 ft 0 in) Titanium-A armor
Length	478 metres (1,568 ft 3 in)^[1] (Stalwart-class)^[2] 490 metres (1,607 ft 7 in) (Charon-class)^[2] 535 metres (1,755 ft 3 in) (Paris-class)^[2]
Width	152 metres (498 ft 8 in) (Stalwart-class)^[2] 156 metres (511 ft 10 in) (Charon-class)^[2] 199 metres (652 ft 11 in) (Paris-class)^[2]
Height/depth	112.3 metres (368 ft 5 in)
Armament	(Armament varies by class) Magnetic Accelerator Cannon (1) Shiva-class Nuclear Missile (1-3)^[3] Archer missile pods (40) 30 missiles/pod Twin Point Defense Gun Turrets (12) Twin Defensive Rail Gun Turrets (5)^[4] (in some variants)
Complement	Marines ODSTs D96-TCE Albatross dropships M312 Elephant HRVs M274 Ultra-Light All-Terrain Vehicles Pelican dropships D77-TC or D77H-TCI GA-TL1 Longsword-class Interceptor M808B Main Battle Tanks M12 Light Reconnaissance Vehicles M12G1 Light Anti-Armor Vehicle M831 Troop Transport AV-14 Attack VTOLs Single Occupant Exoatmospheric Insertion Vehicles Clarion Spy Drones (3)
Usage
Role(s)	Protection of larger fleet ships
Affiliation	UNSC Navy

[Source]

The UNSC frigate is a warship classification in the UNSC Navy. Although it significantly lacks armor and firepower compared to its larger cousin, the destroyer, the frigate is smaller and thus more maneuverable. It is cheaper to produce, allowing greater numbers to be fielded against the Covenant.

BackgroundEdit

With current human technology, frigates are barely considered a match for even the smallest of Covenant warships. It is outclassed even by smaller Covenant ships, its armor is susceptible to enemy point-defense pulse lasers and Plasma Torpedos, and it is outfitted with substandard weaponry. Only en masse does the UNSC frigate give any UNSC fleet element an advantage against even a small number of Covenant Capital Ships. Despite this, two frigates, the UNSC In Amber Clad and the UNSC Forward Unto Dawn played a crucial role in winning the Human-Covenant war, acting as the human flagships in the Battle of Installation 05 and the Battle of Installation 00, although both ended up being destroyed, with the In Amber Clad crashing into High Charity and Forward Unto Dawn being caught in The Portal while escaping the replacement for Installation 04.

LayoutEdit

The Bridge of the frigate is located in the uppermost part of the ship, in the section at the stern-most tip of the MAC gun shaft (in the case of the only seen version of the UNSC frigate, there is another layout variation similar in appearance to the Halcyon-class light cruiser, UNSC Pillar of Autumn. The commanding officer's chair is located behind the two primary consoles within the bridge. There are numerous other consoles located at the sides of the room. There are four bridge stations: Navigation, Operations, Weapons, and Communications.

A UNSC frigate also possess 12 SOEIV bays, located in the rear of the ship, which facilitate the deployment of Orbital Drop Shock Troopers.

UNSC frigates are capable of hovering in an atmosphere and even landing. This ability is displayed by both the UNSC Grafton and the UNSC Saratoga in Halo: Reach and the UNSC Forward Unto Dawn in Halo 3. They also have either a garage or cargo bay in their rear section which is capable of extending out of the ship's ventral side to deploy vehicles or cargo directly to the ground.^[5]^[6] The UNSC Forward Unto Dawn carried multiple Pelican dropships in this rear section in addition to several ground vehicles.

The UNSC frigates are small compared to assault carriers of the Covenant and can fit in the hangar of one, like in Halo 3 with UNSC Forward Unto Dawn and the Shadow of Intent.

VariantsEdit

There are multiple different variants of the UNSC frigate. Each of these variants, designed for different actions, are armed with various weapons and have different dimensions.

The Charon-class light frigate has a large complement of dropships, ground forces, and ground vehicles. It is not as heavily armed or armored as other escort vessels of similar design. This implies a role as fleet support and troop carrier, although it is still capable of ship-to-ship combat.

The Paris-class heavy frigate boasts additional Titanium-A armor plating and a larger number of point-defense guns than standard frigates. Another major difference that has been observed between light UNSC frigates and heavy frigates is the size of the main hangar on the underside of the vessel.

The Stalwart-class light frigate is best suited for planetary defense, fleet escort duties, and troop deployment. It has a smaller complement of vehicles than the Charon class, and less armament than the Paris class, effectively balancing it between troop transportation and fleet support.

Light frigates of the same class as the UNSC Midsummer Night fill similar roles to a prowler's. They are used primarily on information gathering missions and for covert ops. It is presumably not as combat capable as the other frigate variants. It may be synonymous with one of the above light frigates.

SpecificationsEdit

DimensionsEdit

Three frigate classes are of identifiable proportions. The largest, the Paris-class, is 535 metres (1,760 ft) long, while the smallest, the Stalwart-class, is 478 metres (1,570 ft) long. The Charon-class reaches 490 metres (1,600 ft) long. The heights of all three are the same, all reaching 112.3 metres (368 ft).

PropulsionEdit

Like other human ships, the UNSC frigate is powered by thermonuclear fusion reactors which use deuterium (a stable hydrogen isotope) as fuel. The engines almost certainly use the energy obtained from this process to heat some form of reaction propellant which is expelled out of rear-facing exhausts to generate thrust. There are four exhausts visible on frigates; two large and two small.

For translight voyages, the frigate carries a Shaw-Fujikawa Translight Engine. Although they cannot be seen, it can be safely assumed that frigates also possess multiple maneuvering thrusters to adjust a vessel's attitude in three dimensions. Finally, frigates have several times been observed to hover in an atmosphere. It is possible that they vector thrust downward in order to accomplish this feat, but no downward-pointing exhaust nozzles are visible. It is also possible that they employ some form of Covenant-derived antigravity mechanism, or perhaps electrostatic or magnetic levitation, although it is unlikely due to the use of frigates prior to the war. The possible answer is the variance in thrust between the large and small exhausts. In order for the frigate to tilt upwards, the output of the large exhausts are decreased. In order to tilt downwards, the output of the small exhausts are decreased. In order to hover in position, the 4 exhausts on the ship are used to push against each other.

The frigates' engines are their greatest strength as their greater speed and maneuverability afford them an advantage in movement as opposed to armor or firepower. Although slower than Covenant ships at FTL speeds, UNSC frigates can outpace Covenant ships at sublight speeds. The UNSC Savannah was seen to literally fly circles around a Covenant Corvette.

ArmamentEdit

A typical UNSC frigate carries the following armament:

1 Magnetic Accelerator Cannon which is able to fire one round per charge. The MAC runs between one- and two-thirds of a frigate's total length.
3 Shiva-class Nuclear Missiles serves as heavy ordinance.
40 Archer missile pods which carry around thirty missiles per pod, adding up to a total of 1200 missiles.
12 50mm point defense guns function as the last line of defense against single ships and incoming missiles.

CrewEdit

No precise figures are available regarding the crew of a frigate, but it is likely relatively small, (less than a hundred would be stationed on a frigate). Like larger ships, a detachment of Marines and sometimes ODSTs would be present on board. The crew number includes deck crews as well as the command crew, Marines, ODSTs, dropship pilots, and technical personnel. The number of personnel a single frigate is capable of housing numbers at least within the thousands.^[7]^{[verification needed]} Frigates have 24 three man escape pods on each side, and 32 on the bottom, making 80 in total. Therefore, 240 personnel can escape via this method.

In 2552, Sergeant Major Avery Johnson was supposedly able to single handedly control the frigate UNSC Forward Unto Dawn to aid John-117, Cortana and Thel 'Vadam on the newly rebuilt Halo, though this was likely performed using an auto-pilot function. Similarly, Thel seemed to be able to pilot the Dawn at least somewhat after Cortana activated its engines and was removed from the systems, but in that case all he really had to do was point the ship at the Portal and fly into it which was likely a relatively simple task. An AI can monitor and regulate all critical functions without human intervention. Also, the UNSC Gettysburg was able to be staffed by only a small amount of crew, survivors of the Fall of Reach and the Battle of Installation 04 although in that case, Cortana was on board and was undoubtedly able to do much of the work.

SuperstructureEdit

The armor of a frigate is relatively poor compared to that of its larger cousins and counterparts such as the destroyer, with only 60 cm of Titanium-A battle plate. However, due to its relatively light weight, the frigate's strength lies instead in maneuverability and speed. The frigate's relatively wide design is supported by structural support ribs, allowing it to perform orbital incursions.^[4] Furthermore, these ships also have external hard points on their hulls so that they can be towed by another ship or tow away another damaged ship.

Known frigatesEdit

TriviaEdit

In Halo: Reach, frigates share similarities with Halo 2 frigates when comparing Hangar sizes.
From Halo 2 to Halo: Reach, the frigates have a noticeable difference. The frigates in Halo 2 seem to have a bigger "bump" on the front of the frigate, near the MAC gun.
In Halo 3, it is possible for the frigate to release its hangar bay doors.
The frigate seems to be one of the few UNSC ships that can escape a planet's atmosphere without the aid of additional propulsion.