The Grumman Lunar Logistics System Project 344 alternate three-crew lunar rover design of February 1963 vehicle had three x two wheeled modules. The rover would have a range of 770 km on a 23.5 day traverse. The cabin had a volume of 9.72 cubic meters.

The rover used a water boiler system for environmental control. Two mobile shelter concepts were considered.

Crew Size: 2. Mass: 3,140 kg (6,920 lb). Electrical System: 3 kW fuel cell.