アレスV
An Atlas V PH2-Heavy consisting of three 5 meter stages in parallel with six RD-180s was considered in the Augustine Report as a possible heavy lifter for use in future space missions, as well as the Shuttle-derived Ares V and Ares V Lite. If built, the Atlas PH2-Heavy was projected to be able to launch a payload mass of approximately into an orbit of 28.5° inclination. Neither of the Atlas V Phase 2 proposals progressed to development work.