Ares V
Ares V Lite was an alternative launch vehicle for NASA's Constellation program suggested by the Augustine Commission. Ares V Lite was a scaled down Ares V. It would have used five RS-68 engines and two five-segment SRBs and have had a low Earth orbit payload of approximately 140 metric tons (309,000 lb). If chosen, Ares V Lite would have replaced the Ares V and Ares I launchers. One Ares V Lite version would have been a cargo lifter like Ares V and the second version would have carried astronauts in the Orion spacecraft.