Lunar Roving Vehicle
EP-95 ON THE MOON WITH APOLLO 16
 In the LM the
astronauts will take with them to the surface a four-wheeled vehicle
that can be used to transport themselves and equipment over the lunar
surface. It is termed the Lunar Roving Vehicle (LRV) or Rover (figure
12). It is powered by two silver-zinc, 36-volt batteries and has an
individual electric motor for each of the four wheels. A photograph
of the Apollo 15 Rover, taken on the Moon's surface, is shown in
figure 13. A photograph of the folded Rover taken just before it was
placed in the LM is shown in figure 14. The Rover deployment scheme
is shown in figure 15. There is a navigation system that contains a
directional gyroscope and provides information as to total distance
traversed as well as heading. The instrument panel is shown in figure
16. In addition to the astronaut's oral descriptions, television
pictures are telemetered back to Mission Control in Houston from the
Rover. These pictures will be shown over the regular TV
FIGURE 12.-The Lunar Rover. Both
astronauts sit in seats with safety belts. About 7 minutes are
required to fully deploy Rover. The capacity of the Rover is about
1000 pounds. The vehicle travels about 10 miles per hour on level
ground. The steps necessary to remove it from the LM and to ready it
for use are shown in Figure 15.
FIGURE 13.-The Apollo 15 Rover. Shown
in the background is Mount Hadley delta, a 12,000 foot mountain. The
valley on the right side of the photograph is about 1200 feet deep.
On the Rover, note the high gain antenna and the television camera in
the front and the tool carrier in the rear. The scale of the
photograph varies greatly from the foreground to the horizon; it may
be obtained from the footprints, the Rover, and the mountains in the
distance, NASA PHOTO AS51-82-11121.
FIGURE 14.-Folded Rover. To save space
in the LM, the Rover is carried to the Moon folded in this fashion.
This photograph was taken at Cape Kennedy shortly before Rover was
placed in the LM. NASA PHOTO 1OS-KSC-3710-171/4.
FIGURE 15.-Deployment sequence for the
Lunar Roving Vehicle.
FIGURE 16.-Rover Instrument Panel.
This panel contains all of the power switches for the Rover, an
indication of the direction in which the Rover is heading, the speed
at which it is traveling and the information (direction and distance)
necessary to return safely to the LM. Also shown are the power and
temperature of various motors. The small box below the instrument
panel contains the gyroscope. NASA PHOTO S-72-16181.