The Ares V was a plan to create a cargo rocket for the cancelled Constellation program. Ares V was planned to launch the Earth Departure Stage and Altair lunar lander for a plan to return to the Moon in 2019.  The Ares V was supposed to complement the Ares I, which was being designed as a crew launch vehicle. The Ares designs were selected for their anticipated overall safety, reliability and cost-effectiveness.
|Function||Cargo Launch Vehicle|
|Country of origin||United States|
|Height||116 m (381 ft) or 109 m (358 ft)|
|Diameter||10 m (33 ft) or 8.4 m (28 ft)|
|Payload to LEO||188,000 kg (414,000 lb)|
|Payload to TLI||71,100 kg (156,700 lb) or 60,600 kg (133,600 lb)|
|Launch sites||Kennedy Space Center, LC-39B|
|Boosters – 5- or 5.5-segment Shuttle-derived SRB|
|Engines||5 or 6 RS-68B or 5 SSME (RS-25)|
|Thrust||8,350 kN (1,880,000 lbf) or 10,350 kN (2,330,000 lbf) upper atmosphere (figures for RS-25)|
|Second stage – Earth Departure Stage|
|Engines||1 or 2 J-2X|
The Ares V was planned to be able to carry about 188,000 kilograms (414,000 pounds) to Low Earth orbit (LEO), and 71,000 kilograms (157,000 pounds) to the Moon. Upon completion the Ares V was planned to be the most powerful rocket ever built, lifting more into orbit than even the Saturn V. Ares V, Ares IV, and Ares I are named after Ares, the Greek god, which is the equivalent to the Roman god Mars.
- HSF Final Report: Seeking a Human Spaceflight Program Worthy of a Great Nation, October 2009, Review of U.S. Human Spaceflight Plans Committee, p. 65-66.
- Overview: Ares V Cargo Launch Vehicle, NASA. Retrieved 30 September 2008.
- Handlin, Daniel (2006-10-11). "NASA sets Orion 13 for Moon Return". NASA SpaceFlight.com. Retrieved 2007-01-12.
- "NASA - Ares I Crew Launch Vehicle". NASA. 29 April 2009. Retrieved 13 May 2009.
- Steve Creech, Steve and Phil Sumrall. "Ares V: Refining a New Heavy Lift Capability". NASA.