XS-20 Aurora

The XS-20 Aurora is a shuttle craft based on the supposed Lockheed-Martin Aurora Spy Plane that was said to have been developed in the 1980s.

History
During the start of the Enterprise Program created by N.A.S.A, it was realized that the new IXS Enterprise would need some kind of craft for landing on a planetary surface that would support life. This of course was answered by Lockheed & Martin who created a new craft originally designed for space travel for the flight to Mars. It was then that the Enterprise was to outfit 2 of these small vessels.

2020
During the first mission to the Alpha Centauri star system, the crew of the Enterprise used one of these crafts to land on a nearby planet which is what allowed them to meet the Centuryons.