Lunar Sortie Vehicle Credit - NASA

The Lunar Sortie Vehicle (LSV), was a North American Rockwell design of 1971, conceived as a railroad train without the rails. The LSV consisted of three pressurized units and several unpressurized power, utility/equipment trailers

One pressurized unit served as the locomotive at the front of the caravan. The pressurized units were typical cylindrical pressure vessels with spherical end caps. A Mobile Power Unit, one of the unpressurized units in the middle of the train, used a large radiothermal generator using plutonium or other isotopes to generate 3.5 kW of power. The front pressurized unit contained six wheels and served to propel the train. A crew of 6 could be accommodated for a total mission length of 90 days.

Crew Size: 6. Electrical System: RTG. Electric System: 3.50 average kW.