Atlas V Growth Phase 1

American orbital launch vehicle. Proposed growth variant of the heavy-lift version of the Atlas V launch vehicle with three parallel 3.8-m-diameter Common Core Boosters (CCB), a 5-m-diameter wide body version of the Centaur upper stage with a single-engine, and a 5 m diameter payload fairing. Another variant would use a stretched wide body version of the Centaur upper stage with 2 or 4 motors, allowing payloads of up to 13,500 kg to be lofted to earth escape velocity.

Payload: 12,000 kg (26,000 lb) to a earth escape.