Status: Study 1966. Gross mass: 8,344 kg (18,395 lb).
The vehicle provided complete life support capabilities for its 3-man crew during a 90-day, 3425-km mission.
The vehicle carried 1500 kg of scientific payload, and had an average driving speed of 10 kin/hr.
The R3DE was delivered to the moon by an LLV, and was capable of being stored for as long as six months before commencing its mission. Prior to the crew's arrival, the vehicle was remotely unloaded and driven to the site of the crew's landing. The 90-day mission commenced with the arrival of the crew.
The R3DE power subsystem consisted of an isotopic power supply as well as an AgCd battery. The isotopic power supply was rated at 3.45 kW. A battery was used during peak power demands above the isotopic output and was recharged during periods of low power requirements.
The cabin subsystem included a horizontally-oriented cylindrical cabin containing an airlock, five external viewports, and the crew stations. Controls and displays were provided at the two-position driving cockpit, the scientific station, and the aft emergency driving station located in the airlock. Meteoroid protection was provided by the cabin structure.
The mobility subsystem consisted of four metal-elastic wheels individually powered by a motor and transmission, steering actuators located in the front wheel hubs, and suspension and deployment mechanisms.
The life support/thermal control subsystem consisted of the crew provisions and the Environmental Control System (ECS). The crew provisions included equipment and expendables associated with the personal needs of the astronauts. The ECS provided pressurization, atmosphere control, cabin and suit temperature control, humidity control, contaminant control, and water management.
The astrionics subsystem comprised the communications, navigation, TV, and illumination equipment. The communications equipment provided for S-band communications between the vehicle and earth, and for local lunar communications at VHF between the vehicle and the command module, EVA astronaut, or other lunar terminals. The navigation equipment utilized two navigation techniques: a position fix mode and a dead-reckoning computation. The TV equipment included a TV camera providing a forward-looking stereo pair; a single, monoptic camera for rear viewing; and three cameras for cabin internal viewing and monitoring. Illumination equipment was provided to aid in lunar-night operations.
MOBEV MOLAB/MOBEX SUMMARY
Vehicle Type ----MOLAB---- --------MOBEX------- Configuration RZC(1)E R3CE R3AE R3BE R3DE Crew or Duration 2 Man 3 Man 28 Day 42 day 90 day Delivered Mass (kg) 2975 3231 4909 6923 6930 Scientific Payload (kg) 320 320 700 1500 1500 Crew Supplied Mass (kg) 139 169 222 286 988 Ttll Operating Mass(kg) 3398 3826 5757 7646 8344 Range (km) 400 400 800 1600 3425 Avg Max Speed (km/hr} 10 l0 10 10 10 Obstacle (m) 1.1 1.1 1.1 1.1 1.1 Development Cost ($mn) 307 311 324 326 318 Development Time (mos.) 54 56 56 58 58
Crew Size: 3.