The ship was unique for its new and advanced technologies, most notably its transporter and its new warp engine, capable of propelling the ship to warp factor 5 ( TOS scale) or 125 c. The ship's weapons, the grappler, a sensor dome, and cargo bays occupy the ventral section. The main bridge, crew quarters, sensors and thrusters are embedded into the top of the saucer section. At the bow of the saucer is the navigational deflector, while the observation lounge, aft torpedo tube, and impulse engines are at the stern. The NX class features a large saucer attached to two warp nacelles by pylons running upward. The unique design of the NX class would portend future Federation Starfleet designs that appear in the Star Trek universe. The NX class is a fictional class of starship produced by Earth Starfleet prior to the United Federation of Planets in the science fiction television series Star Trek: Enterprise. The Starship Enterprise, a member of this class