The sign accompanying the LRV.  It reads
    
    
    
    Lunar Rover Trainer
    
    
    
    Artifact on loan from the National Air and
    Space Museum, Smithsonian Institution
    
    
    
    Rovers were taken to the Moon's surface - and left there each time - on the
    last three Apollo missions.  Astronauts Dave Scott and Jim Irwin (Apollo 15), John Young and
    Charlie Duke (Apollo 16),
    and Gene Cernan and Jack Schmitt (Apollo
    17), practiced in this Lunar Rover Trainer here in Houston in preparation
    for their Apollo missions.
    
    
    
    Since it was not needed on the Moon's airless surface, the rover had no
    steering wheel or brakes.  It was started, steered, and stopped by a single control located
    between the two seats.  The electric-powered rover could travel at almost 10
    mph and had a range of about 55 miles.  It was equipped with a TV camera, which
    recorded the astronauts' exploration of the moon and liftoff of the top half of
    the Lunar Module when the astronauts left the moon.