NIST full-scale 2 m RoboCrane mobile prototype (2 m frame member length) driven using six independently-controlled tracks (i.e., three tracked vehicles). It was mobile, flexibly-configured, rigid/hinged-legged and battery powered. The on-board computer was an SBC-32 based system that allowed remote RF control of the rover's mobility, Stewart-platform and attached tool. The prototype was demonstrated at the National Air and Space Museum Lunar Rover Exhibition in Washington, D.C. in 1992.