In the Star Trek fictional universe, traditional Federation starship design divided Starfleet ships into with two main sections: The "primary hull" or "saucer section" provides crew quarters and living facilities, science and mission facilities. The primary hull also has weapons arrays, impulse engines, and command facilities such as the main bridge. The primary hull is also known as the "saucer section" due to its resemblance to a saucer. The second part of the ship, the "engineering hull" (also known as the "stardrive" or "battle section") is attached to the primary hull by a neck. The stardrive section holds all warp drive-related components, as well as the navigational deflector array, shield generator and additional weapons. The stardrive section could also contain fuel storage, cargo