Marathon-class heavy Cruiser

Name: Marathon Class
Craft: UNSC Marathon Class Heavy Cruiser
Type: Heavy Cruiser
Scale: capital
Length: 1,192 x 293 meters
Skill: capital ship pilot
Crew: 1,019; skeleton: 101/+10
Passengers: 1,570 troops; 80 other personnel
Cargo Capacity: 23,840 metric tons
Consumables: 5 years
Slip Space Drive: x6,160
Nav Computer: yes
Maneuverability: 1D+2
Space: 6
Atmosphere: 330; 950kmh
Hull: 6D+2
Sensors

Passive: 30 / 0D+2
Scan: 60 / 1D+1
Search: 90 / 2D+1
Focus: 3 / 3D

Weapons

2 Heavy MACs

Fire Arc: forward
Crew: 2
Scale: capital
Skill: capital ship gunnery
Fire Control: 1D
Space Range: 2-15/38/75
Atmosphere Range: 4-30/76/150km
Damage: 10D+1

30 Oversized Archer Missile Pods

Fire Arc: 15 port, 15 starboard
Crew: 2
Scale: capital
Skill: capital ship gunnery
Fire Control: 2D
Space Range: 1-12/30/60
Atmosphere Range: 2-24/60/120km
Ammo: 60 per pod
Damage: 4D+2

15 M910 PDGs

Fire Arc: turrets
Crew: 0; Automated
Scale: starfighter
Skill: Automated: Starship Gunnery: 4D
Fire Control: 1D
Space Range: 1-3/8/15
Atmosphere Range: 1-300/800/1,500m
Damage: 2D+2

Fusion rockets

Fire Arc: forward
Crew: 2
Scale: capital
Skill: capital ship gunnery
Space Range: 1-12/30/60
Atmosphere Range: 2-24/60/120km
Ammo: 5
Damage: 6D+2

Complement

24 Longsword interceptors
Pelican dropships (D77-TC or D77H-TCI)
Marines
- ODSTs
HEVs
Warthogs
Scorpions
Hornets

Description: The Marathon-class heavy cruiser is a cruiser classification used by the UNSC Navy. At 1,190 meters, they are some of the largest and most powerful warships ever utilized by humanity, built as a replacement for their aging Halcyon-class light cruisers. Their numbers are limited, and they are usually commanded by the highest ranking officers.

At 1190 meters long, Marathon-class heavy cruisers are approximately three times the length of a UNSC frigate. They are equipped with thick layers of Titanium-A armor, and are able to sustain far greater damage than any UNSC frigate or destroyer. Due to their size, durability and firepower (2 MACs as well as dozens of oversized Archer missile pods), these massive vessels are commanded by UNSC Admirals and primarily served as flagships for UNSC fleets.

During the early years of the Human-Covenant war, Marathons played a crucial role in defending the outer colonies, although most ended up getting destroyed during that period of time. The remainders of these great cruisers were reassigned to the defense of the Inner colonies in the latter years of the Human-Covenant war. They were considered extremely valuable in terms of firepower and armor, and it was seen to by the UNSC admiralty that they were only used in the most dire and occasional of circumstances. Marathons were present at the Battle of Sigma Octanus IV and the Fall of Reach. Twelve saw action at the Battle of Earth under Fleet Admiral Harper and another was part of Battle Group Stalingrad during the Battle of Onyx.

Source:

Halo Wiki: Marathon-class heavy cruiser
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