The
VSS Enterprise (
tail number:
N339SS) was the first
SpaceShipTwo (SS2), built by
Scaled Composites for
Virgin Galactic. As of 2004, it was planned to be the first of five commercial suborbital SS2 spacecraft planned by Virgin Galactic. It was also the first ship of the Scaled Model 339 SpaceShipTwo class, based on upscaling the design of record-breaking
SpaceShipOne.