Earth Pre-Federation Database - Warp Delta
	History:
	Two ships of this class came to the assistance of Enterprise NX-01 in 2152 when, on its return to Earth, it came under assault from a Klingon warship. Together the four Starfleet vessels managed to overwhelm the aliens and drive them off. This class of starship presumably predated the NX class and must therefore have been less advanced with a reduced warp-capability and phase cannons, although these might have been upgraded. The vessels are compact consisting of a single sagittate hull with warp nacelles mounted to the sides on pylons. No class name or vessel designations are yet known for these ships. ENT "The Expanse" Text from the The Unofficial Index to the GE Fabbri Star Trek Fact Files (Venus / Challenger / Iceland Class)