The brief
- Went public October 2019 (SPCE); Richard Branson flew to space July 2021 aboard VSS Unity.
- VSS Unity flew 12 flights by mid-2024, then paused to prepare Delta-class production.
- Delta-class: six passengers, ~8 flights/month. First Delta in ground testing; commercial flights targeted Feb 2027.
Technical approach
Carried aloft by carrier plane
Spaceships drop from White Knight Two at altitude, avoiding heavy ground infrastructure.
Hybrid motor, glide landing
Rocket motor burns solid fuel with liquid oxidizer, shuts off at apogee. Spaceplane glides to runway landing.
90 km altitude, brief weightlessness
Reaches the Kármán line. Passengers experience minutes of weightlessness, see Earth's curve, then glide down.
Eight flights per month per vehicle
Delta design enables rapid turnaround with modular components, supporting faster refueling and servicing than Unity.

