The Grumman Lunar Logistics System Project 344 three-man lunar rover design of January 1963 used a 3 module vehicle. It had a range of 2340 km on a 28 day traverse.

The modular rover was designed to be launched to the moon by a single Saturn V. (3 x 3500 kg vehicles). This resulted in a small crew cabin.

Crew Size: 3. Mass: 10,430 kg (22,990 lb). Electrical System: fuel cell.