Einstein class

The Einstein class was a type of starship used by the Federation Starfleet in the early 23rd century. The class was introduced in the 2200s, and was still in service into at least the 2230s. 

The class featured primary and secondary hulls, a massive sensor pod, and a single warp nacelle. It had a length of approximately 1500 feet, and a standard crew capacity of around 800. 

The USS Kelvin (NCC-0514) was an Einstein-class vessel, under the command of Captain Richard Robau.