The Romulan science ship was a type of science ship in service during the mid-24th century, which was used to conduct standard and experimental research for the Romulan Star Empire. (TNG: "The Next Phase")
While normally fitted with a cloaking device, in 2368, a science ship tested a new experimental interphase cloaking device. The ship was ultimately assisted and repaired by the USS Enterprise-D. (TNG: "The Next Phase")
The engine room section was located in the middle of the "head" of the science ship. It contained a primary situation station in the center of the room, and associated consoles along the walls surrounding the room. The ship's engine core was located in the containment chamber, an adjacent room connected to the main engine room.
The core itself was a spherical in shape and contained within a small chamber which has a single open hatch. The room also contained the warp core ejection system's manual override, embedded in the floor. When ejected, the core is shot into space from the mid-dorsal section of the ship. (TNG: "The Next Phase")
Ships of the class
This vessel was identified as a science ship in the episode's script. Also, according to the script, it was "about half the size of the Enterprise," suggesting a length of approximately three hundred meters.