It looks like a big chisel with an upside-down coffee cup on the back.
Praxidike Meng
in Caliban's War

The Rocinante ("Roci") is a MCRN Corvette Class, light fast-attack ship with multiple roles, such as torpedo bomber and boarding party insertion. The Corvette class ships are the smallest naval ships equipped with an Epstein drive.

Originally commissioned as the MCRN Tachi (ECF 270), the ship was stationed onboard the MCRN Battleship Donnager. She was rechristened by James Holden after he and his crew used her to escape from the Donnager. (In literature, "Rocinante" is Don Quixote's horse.)

The ship's construction is as a narrow building layered floor by floor from the drive cone and reactor up to the engineering deck, to the machine shop, then the galley and crew cabins and medical bays, storage deck containing the crew airlock, then on up to the command deck and pilot's farthest forward. Under thrust, g-forces then provide a "down" amenable to human orientation.

Her normal crew complement was over a dozen navy personnel and officers, and on many missions she’d also carry six marines.

Crew Edit

Rocinante crew
🐎 Joined crew after Nemesis Games (book)

History Edit

Eros Incident Edit

20161210 150519

Disguised as a gas freighter

When the Donnager was destroyed, Jim Holden and his former crew of the Knight used her as an escape vessel.

Holden kept the ship, claiming it as salvage, giving it new transponder codes provided by Fred Johnson, and named her Rocinante after Don Quixote's horse. It was briefly disguised as a gas freighter during the Eros incident by engineers at Tycho station.


Battle for Thoth Station Edit

During the battle at Thoth Station, the Roci took out the comm array and the two defensive ships while Guy Molinari boarded the station. During the battle Roci took a lot of damage including a heavy gauss cannon round through the galley and machine shop.

Upon returning to Tycho Sam Rosenberg was the team leader in charge of her repairs much to Holden's admiration.

Later it was used by Holden and the crew to chase down Eros.

Ganymede Incident Edit

After the Eros incident, the ship and its crew were employed as pirate-hunters by OPA, until Fred Johnson fired Holden for insubordination.

The Ring Edit

After earning a large amount of money as an independent contractor, the crew did some upgrades on the Roci: The captain's quarters and the XO's quarters were combined into one large room by cutting out the bulkhead dividing them, a rail gun firing two-pound tungsten slugs was mounted on the ship's keel to have a backup weapon when they ran out of military-grade torpedoes, and the engines got some after-market upgrades on Callisto.

Media Edit

  • The evolution of the Rocinante: Seth Reed’s initial sketch, North Front’s early variants, elevations, block-in and refined models, and graphics pass.
  • The exterior of the Rocinante. The Expanse’s equivalent of the Millennium Falcon, the ‘Roci’ was one of the show’s main design challenges.
  • Tachi docked in the Donnager
  • Being painted and modified to hide it's MCRN origins
  • Tachi ship's badge
  • Concept Art

Trivia Edit

  • Although Holden states in Leviathan Wakes that he named the Rocinante after Don Quixote's horse from the novel Don Quixote, the name is also used in the song "Cygnus X-1" by Rush, from the album 'A Farewell to Kings', a band Ty Franck is a big fan of[2], because of the following lyrics:
Flew into the light of Deneb
Sailed across the Milky Way
On my ship, the "Rocinante"
Wheeling through the galaxies
  • Rocinante is Spanish for a work horse or low-quality horse, but can also mean an illiterate or rough man. Pronounced: 'Rah-sih-nahntay' (or 'Rahsee' for Roci).
  • Tachi is a Japanese word and may have the following meaning in a military context. (1) Tachi (太刀): A type of sword predating the Katana. A Tachi is slender, narrow and light. (2) Tachi (立ち) literally "to rise", "rising up to face battle". In the TV show the crews uniforms show a Chinese "motto" or alternative name for the ships. For the Tachi it is 首次作战 - "first (time) into battle". The Chinese motto aligns best with meaning (2).

See alsoEdit


External Links Edit

Note: This is a generic section stub. Expand it by clicking Sprite-monaco-pencil Edit to right of the section title.


  1. 1.0 1.1 Josephus Miller was a guest from the midpoint through the end of Leviathan Wakes
    Praxidike Meng was a guest from early through the end of Caliban's War
    Roberta Draper was a guest from midpoint through the end of Caliban's War
    Chrisjen Avasarala was a guest from midpoint through the end of Caliban's War
    Basia Merton was a guest from early through the end of Cibola Burn
    Fred Johnson was a guest from midpoint through the end of Nemesis Games