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Exploration HLLV
American heavy-lift orbital launch vehicle. Numerous NASA studies in the late 1980's and 1990's came to the same conclusion as the Nova studies of the 1960's - to get to Mars, an extremely heavy lift launch vehicle was needed to assemble Mars expeditions in low earth orbit. A nominal heavy list vehicle with a payload of at least 140 metric tons into a Space Station Freedom orbit would have to be developed for such missions.

AKA: Heavy Lift Launch Vehicle. Status: Study 1989. Payload: 156,900 kg (345,900 lb). Apogee: 407 km (252 mi).

Shuttle-derived vehicles (Shuttle C and Shuttle Z) or ALS or NLS-derived vehicles all would require excessively high launch rates in the NASA mission models.

LEO Payload: 156,900 kg (345,900 lb) to a 407 km orbit at 28.50 degrees.

Family: heavy-lift, orbital launch vehicle. Country: USA. Agency: NASA.
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