For mission safety, weeks before the human mission on a LK lander, an LK-R uncrewed lander from the L3 lunar expedition complex and two Lunokhod automated rovers would be sent to the Moon for a preliminary study of the surface around LK-R and LK sites, to act as radio beacons for precision landings of LK-R and LK, and for a visual evaluation of the status of the site. Should the craft (either the LK or the Lunokhod) used by the cosmonauts fail, the LK-R could be used as a reserve escape craft in case of failure to start and lift off from the Moon. They could also be used for regular research. The crewed version of Lunokhod was additionally equipped with a stock of oxygen with hose socket, standing pads and manual pilot control for the cosmonaut in forward section.