The U.S.S. Sulaco is a fictional spaceship and important setting in the film Aliens. It also appears briefly in the opening scene of Alien 3, and in the Aliens: Colonial Marines video game that takes place shortly after the events of Alien 3
The Sulaco is named after a fictional town in Joseph Conrad’s novel Nostromo (the name of the ship from the original Alien), and a number of other names in the franchise are based on Conrad’s work as well.
Some scholarly research into the symbolism of the Alien franchise has considered it significant that Sulaco in Conrad’s Nostromo is the home of the white owners of the silver mine figuring in the book, while the Sulaco in Aliens transports soldiers to investigate unknown troubles at a corporate outpost of Weyland Yutani and to protect the investment—drawing parallels between the ‘corporate’ owners in Conrad’s work and the shadowy business entity forming a central part of the Aliens franchise.
The Sulaco is a Conestoga-class starship that transports United States Colonial Marines to investigate the loss of communication with a colony on LV-426 in the Aliens movie. While carrying only a small complement in the movie, and only two dropships, it is noted in other reference material that as a troop carrier, the Sulaco could carry up to 20,000 tons of cargo, with up to eight UD4L Cheyenne dropships and has sufficient life support capabilities for 90 crew and passengers (with up to 2,000 possible in hibernation for short term trips).