The Type 3300B Deucalion–class X expedition colony carrier was a type of colony ship manufactured by Lockmart and Welsun and commissioned by the United Nations Interstellar Settlement Corps in 2181. As with the Model CY78.3 Affiance-class U extended range colony ship, the 3300B was equipped with solar recharge sails, and also carried four Atmosphere Processing Plants for remote deployment to a planetary surface; the processors were designed to be easily activated once landed. The 3300B was also equipped to manufacture vehicles and equipment, provided that the requisite materials were available and the relevant plans on file.