The Madison-class was a type of Starfleet vessel in the shape of a tuning fork with 250 meter-long tines which joined into a point at the bow. A bi-polar impulse/warp coil light cruiser, it was considered top of the line in the 2330s decade. The ship was capable of long hauls at a maximum of warp 5, and could operate for 15 to 20 years without refueling. In 2370, there was a dead vessel of this class in Earth orbit for early Starfleet Academy training. (TNG novel: Balance of Power)